Categories
Industry Profile

Tony and Joanne Ivicevich

Tony and Joanne Ivicevich

71 years young and still growing!

 

Tony and Joanne were born in 1947. Joanne’s family immigrated to New Zealand in 1953 from Gloucestershire, England.  Tony was educated at Lynfield College, Auckland and Joanne at Auckland Girls Grammar.  From school, Tony began work as a shipping clerk for import merchants Neil Cropper and Co, and later an industrial chemicals sales rep.

Joanne also gained employment at Neil Cropper and Co, as a shorthand typist, this is how they first met and have now been married for 48 years. Their daughter Danica currently lives in Tauranga.

Tony later changed jobs to start selling offset printing machines for an American company.  Tony, with work colleague bought into a small struggling printing business and lasted 8 years.  Working long hours, high pressure took its toll, so in 1979 Tony decided the printing business was not for him and that he should do something with the eight acres in Pomona Road Kumeu purchased six years earlier. The change was inspired by a magazine photo of a smiling grower surrounded by waste-high flowers under a glasshouse roof and clear blue sky

Tony and Jo with the help of Jo’s sister Sue built their first glasshouse from a supposed kitset on the property (1979) followed by a Faber Greenhouse eighteen months later.  In total Tony and Joanne had 1700 square meters of greenhouses.  Tony had no knowledge of growing, he undertook a night course at Unitec and sourced information from MAF and an advisor from Turners and Growers.  MAF was a free service in those days but that stopped soon after. At Unitec he learned the at the time glasshouse tomatoes were considered by MAF like corner dairies – 60% of NZ growers had less than two years’ experience. There were some 1200 tomato growers at that time producing no more than 20 kg/m2!

The first crop was long beans in 1979 following a recommendation (at the time) that it was not the right time to plant tomatoes!  (how times have changed!!)  Joanne remembers the long hours on the lounge floor of their home sorting beans and after picking, walking from the back of the glasshouse to see that beans needed picking again!!

Joanne and Tony remember receiving their first tomato plants, they didn’t even know how deep to plant them and following the kind help of two local tomato grower families planted their first crop of tomatoes in 1980, first growing in soil for two years before moving onto sawdust and then pumice bags. 

There was a great deal of trial and error with the first tomato crop, as technical information, on how and what to grow was not as readily available as it is today.  Tony remembers a visit they had from Auckland Vegetable and Produce Growers’ Society Inc. Secretary Max Wordsworth and wife Olive. Olive’s comment on the first crop was “….what these need is a bloody good drink of water” All that night the tap was left on watering all night. In the morning the soil surface still looked dry but on stepping into the glasshouse he sank up to his calves in mud! Tony was offered some strong wool carpet cord by another grower’s dad to tie his plants up with!  The cord later delaminated and one by one and the plants fell down due to the increased weight.  After restringing the whole house (with proper string) the light wire recommended failed under the weight so there was another round of re-stringing once the wires were replaced!

Tony joined the West Auckland Glasshouse Group [WAGG] that met monthly on [12] members’ properties and learned an incredible amount from some very old hands. Tony and Joanne were invited to the Vegetable Growers’ AGM dine and dance where Tony was immediately elected  onto the Society’s committee thus starting his long involvement with the different industry growing organisations.  This was a great way to interact with other growers, learn and make contacts within the industry.

Over the next 20 or so years Tony and Joanne learnt their trade and became extremely good at growing.  With the advent of Australian imports and supermarkets demanding big single lines of tomatoes, growers started to work together and packhouses like Karaka [now NZ Hothouse], PTO  and Lateral  were established. Tony and Jo were founder members of Lateral Packhouse in West Auckland with members of WAGG and many others.

At the start of the millennium new business opportunities became apparent, Tony, Joanne and two other business partners decided to relocate, build new greenhouses’ and a large pack house at their current location on State Highway 16 between Kumeu and Waimauku.

Tony was part of the team that designed the DFT (Deep Flow Technique) system which is used to grow his tomatoes. I will dedicate a future article to this growing system.

 

Together they built 3 plastic greenhouses, on three separate titles, totalling 2ha of growing area.  Between them the Beekist brand was born (Joanne suggested the name).  They started packing tomatoes for 40 local growers in the area.  As time went on the growers slowly retired, the structure of the pack house business changed with the Beekist Services packing business sold to Turners and Growers combining it to the PTO Packhouse in Otahuhu and the Beekist brand, leased for ten years was finally sold, now owned by Turners and Growers. 

Thirty-eight years on, Tony and Joanne continue to grow in their 4000m2 plastic greenhouse.  They produce large truss tomatoes and pack their own.  Tony and Jo have gone from producing 20kg per m2 of tomatoes in 1980, to 50kg m2 in 2018.  Innovation, a willingness to learn and put in the hard yards has seen Tony and Joanne become one of New Zealand’s best growers.

Tony and Joanne grow large truss marketed via MG Marketing. You might notice the protective covers under the fruit, this is just one example of the extra care and attention that makes these growers stand out.

Tony was part of the Auckland Vegetable and Produce Growers Society that had set up Veg-Gro Supplies Ltd after many years of trading under just the Society’s name, which is now the Horticentre Group, and is still its chairman and Horticentre Trust trustee.  He was chairman of what is now known as Tomatoes NZ for 11 years and a Horticulture NZ Board Member for 9 years after 2 years on the establishment board.  In 2015 Tony was made a Life Member of Hort NZ.  and Life Member of Pukekohe Vegetable Grower’ Association Inc

It was such a joy to chat with Tony and Joanne, I now appreciate how much they have contributed and assisted our industry over the years.  Tony and Joanne’s contribution, to the various boards, has been a huge sacrifice, it took its toll on business, as it meant being away at meetings and conferences for long periods of time.  You cannot achieve all they have without a huge passion for the industry. 

Tony and Joanne are now 71 (you would never know by looking at them). They are thinking of retiring shortly after a massive 38 years growing tomatoes.  The no 8 wire kiwi attitude ‘get stuck in and do it’ is exactly what these two have done.  We are better off for Tony and Joanne Ivicevich becoming tomato growers.  We just need Tony to write a book so we don’t loose all of that valuable knowledge and information. 

Tony and Joanne keep their property immaculate. Their gardens match the care and attention that flows through to the greenhouse. 

Joanne and Tony have always supported their staff.  The day I arrived they were celebrating Angela’s birthday.  She has been employed by them for 17 years.  Joanne made the cake!! It was scrummy.  Don’t tell my wife!!

Just another example of the excellently maintained grounds and greenhouse

Categories
Industry Profile

The Next Generation (p2)

The Next Generation

Part 2

Kate Miln (BSC Massey University)

Production Assistant, Gellert Nurseries Ltd

 

Kate Miln was born in Auckland and raised in Pukekohe, South Auckland.  Kate grew up surrounded by Horticulture and now finds herself learning the ropes as an assistant grower (production assistant) for Gellert Nurseries in Karaka, South Auckland. 

Kate (22) attended Buckland Primary and then went to Tuakau College.  When Kate finished college, she decided to attend Massey University in Palmerston North, to do a biological science degree, she did not know it would become a Bachelor of Science in Plant Science until 6 months after her studies began.  Luckily for the horticulture industry, while in her first year at Massey, Kate did a plant biology paper, it was from then she decided to do her degree in plant science.  Kate spent an extra 6 months at University, as her slight change of direction meant she had to complete several more papers to achieve her degree.

When she attended Tuakau College horticulture was not promoted or recognised at the same level as other subjects.  In the New Zealand education system, you could only gain a ‘unit standard’ for doing horticulture studies not ‘Merit’ or ‘Excellence’ grades on offer in other subjects which were more beneficial for gaining entry into University.  Kate now understands that our industry is in need of more horticulture workers but said when she was at college “it was not promoted enough, this may have changed since I was at high school, I hope so at least.” 

During her last year at Massey University Kate started looking for possible job opportunities.   At the career hub at Massey, Kate came across an advertisement for the position of Production Assistant at Gellert Nurseries.  Kate applied for the position, was flown from Palmerston North to Auckland, by Gellert Nurseries owner Steve Gellert, to be interviewed just before the weeks leading up to her final exams.  Kate made an extremely good impression and had the necessary skills to be offered a full-time position.   Only three weeks after completing her degree she started her first day at Gellert Nurseries.  Steve Gellert needs to be congratulated for having the foresight to hire a student straight out of university. 

 

Kate is learning specialty irrigation techniques used for growing young plants.

 

“Massey was a great place to learn the theoretical side of growing”.   Learning about plant physiology, insects, diseases and chemicals were some of the fundamental papers needed to complete here degree. Other papers included: Controlling weeds, soil science papers, postharvest horticulture and basic horticulture papers that covered much of the growing practise and industry information.  The theory learnt at Massey was excellent but the practical side is a totally new challenge.  Learning how to use an environmental computer, deal with staff and the day to day running of a growing operation is very different to what she anticipated.  Having the vast experience of production manager, Steve Hadley, to learn from is a great opportunity for Kate.

 

Kate with one of the eggplant crops she is responsible for.  Kate is in charge of monitoring the EC and PH as well as recording growth rates, checking and monitoring insect pressure and checking root health, amongst other tasks.

 

In her past time Kate loves going to the beach and swimming, she is an avid reader and reads almost anything.  Kate has a bright future in horticulture, she knows there is still a lot to learn and that this will come with time and experience.   

 

Kate is learning about the effects of lights on plants.  These are a recent edition to the nursery and provide guaranteed all year-round assurance plants will be growing under optimum conditions.

 

 

 

 

 

Categories
Seeds

NUNHEMS comprehensive assortment

Why not consider NUNHEMS for you autumn and winter cucumber variety program?

 

It is that time of year when you are now planning your autumn, winter & spring cucumber programs, so have you considered the assortment offered by Nunhems?

Nunhems, the Vegetable Seeds business of Bayer, has been working hard to bring to you a comprehensive assortment of varieties in all categories of cucumber. Whether you are growing Telegraph cucumber in High Wire systems, or Mini cucumber in unheated plastic houses, Nunhems has varieties suitable for all conditions.

If it’s Telegraph varieties you are looking for, Nunhems is proud to offer their “HiRevolution” varieties that possess a “COMPACT” plant structure, with short internodes and smaller, horizontally-positioned leaves. These varieties are suitable to High Wire systems for long crop cycle production resulting in more balance labour costs (per kg/m²) and high, uniform fruit quality. Varieties include “Hi Power” and “Hi Force”.

For more traditional, umbrella production in either heated or unheated conditions, Nunhems has a large range of Telegraph varieties that will meet your needs. Varieties such as “Taray” and “Brujula” optimize the highest fruit quality, together with strong disease and virus resistance. The extra vigour in these varieties will give you the opportunity to maximise production during cold, short day conditions.

Should you be looking for varieties in shorter types, such as Lebanese or Mini cucumbers, Nunhems offers a number of varieties that will give you the competitive edge on yield and quality. “Bosco” is a Lebanese variety suitable for autumn and spring production with high yield potential, medium plant vigour and high resistance to Powdery Mildew. For production in cold and unheated conditions, “Luxell” has been a proven winner as an attractive option for winter Lebanese production. Luxell offers fantastic dark green fruit colour, strong plant vigour and continuous generative plant behaviour, giving great yield.

In the Mini cucumber segment, a new entrant to the market is a variety called “Talisya”. This variety is a perfect addition to your program for the autumn and spring seasons. Talisya displays strong plant vigour with a tendency for continuous, high quality single fruit production without fruit abortions. A real strength of Talisya is its dark green fruit colour together with a deep ribbed texture for longer shelf life, and ample fruit length i.e. 16-17cm.

If you would like to discuss your program or gather more information on any of these varieties and others in the Nunhems range, please do not hesitate to contact us.

“Hi Power: – Telegraph for High Wire

 

“Taray” – Telegraph for Umbrella System

“Bosco” – Lebanese or Green Variety

 

Paula O’Hanlon – Sales Specialist

Bayer Vegetable Seeds

Mobile: +64  21731009

E-mail:  paula.ohanlon@bayer.com

 

To find more information on the Vegetable Seeds business in Australia/New Zealand, please visit:
http://www.nunhems.com/www/NunhemsInternet.nsf/id/CW_EN_AUS
Categories
Greenhouse News

February, the weather bombs

 February weather bombs

The weather has been extreme in recent weeks, hot, hotter and unbearable! And then rain, rain and more rain!! And to top it all of a few cyclones thrown in for good measure!!  Hamilton has had over 280% more rainfall for the last month than average!  Great for the Dairy Farmers but this possesses challenges for covered crop growers.

February Industry Scan:

Both powdery mildew and leaf mould have become an issue on different sites.  White fly and thrips is about and reports of pshyllid damage are now filtering through. The issue I see is all of this has taken the attention away from what is most likely to suffer the most in these conditions, your root systems!

 

This leaf mould has been treated as you can see from the slight die back on the edges of the mould. But it is only holding it at bay and not eradicating it.

 

While it is totally understandable that growers are working tirelessly at the moment to keep up with not just all of the fungal and insect pressures but the extra plant work due to the growth rates that the root systems can be left untreated.

I would advise that it is extremely important that you look at the roots daily if not twice a day!  Checking slab temperatures, EC and Ph monitoring and if you are able take slab water content level readings.  If your roots are browning or looking tired then treat them but please contact an expert regarding what you treat them with in these current conditions.   If you think you can wait then you could find that you will then have to use a product that is needed but could also make the plant take longer to recover.  I am always in favour of a softer product at this time of year and even as a routine preventative.

High temperatures mean the irrigation water is warm and there is less oxygen.  You will also find there is a tendency to over water in the current conditions.    We are now into the last days of our official summer and the days are shortening.  As my old consultant used to say “once the 14th of February is here you must start thinking winter irrigation strategies”.   The days are still long but are decreasing and so must your irrigation stop times.  You can stop some substrates earlier than others, and you might find that on some substrates you might need to do a correction by using a night shot.

You can just see the two small spots of powdery on this cucumber plant which has had 2 cucumbers picked of the main stem already.  You might be able see it has been treated with a fungicide to prevent its spread.  This grower is taking no chance and is a good example of being aware of the threat. 

 

I would recommend if you are just planting that you treat your roots with either a biological or chemical fungicide to prevent damage from Pythium.  NFT and DFT growers should monitor their water temperature, anything over 27 degrees will start being harmful to your roots and therefore weaken your plants. 

If your roots are looking good and working well then, the plant can transpire efficiently, therefore keeping it self-cool and under less stress.  The more stress the plant is under the more likely your plant will become weak and open to infection.  There is a relationship between your fruit load and your plants health.  You could consider reducing your fruit numbers no matter what you are growing.  Cucumbers love the heat and could be an exception but only if they have a strong and powerful root system and are free of powdery mildew and insects!!  Capsicums do like the heat but most crops will be coming to their final months so I would think preventing an old plant from getting root issues is still important.

 

The two highlighted areas show bent fruit.  This crop had a good root system, with CF, PH and WC all good, so I predict that this was a case of Thrip damage

Categories
Greenhouse News

Crop Registration

I highly recommend crop registration!

 

Crop registration is not for every grower, but those who carry out weekly crop registration will benefit.  It can be time consuming and may seem like just a bunch of numbers, but as I always say ‘plants do not talk’. So, to understand what is happening a weekly crop registration can be so beneficial.  The numbers and data you collect, as part of a crop registration, is like a tracking device. You can see the effect on your plants growth.  This could be from previous changes you have made or from weather conditions and irrigation techniques.  Knowing how your plant is reacting each week is vital for short and long-term crop planning. 

Once you have this weekly information it is then the basis for your decision making for the next 7 days and beyond.  The added benefit is that you have the ability to share this information with a consultant who will make suggestions about the direction you could go in.  Having another set of eyes, I always found invaluable. 

I was a medium sized grower compared to some of the large operations we have in New Zealand but when I joined a grower group (with the assistance of my consultant at that time Bryan Hart) with Tony van Rijn and Mathew Hellyer, in the late 90’s, I quickly started to understand the benefit of taking weekly measurements and readings.  Data was also taken from the environmental computer and all entered onto the crop registration sheet.

Crop registration is not just for tomato growers, it could be useful for any grower, growing any crop.  You need to know what has to be measured for your particular crop and take the necessary readings.  In my experience cucumber growers generally will not do a crop registration.  Cucumbers have a fast turn around and grow extremely quickly.  I think they would benefit from completing weekly crop registrations and one example is the annual debate about when is it the right time to change from summer varieties to winter varieties?  Collecting information year on year would give you an opportunity to look at the figures from previous years and use this information to base your decision on.  It might be the difference of one or two units per cycle which might not seem a huge amount but over 10 years it is.  Especially at a time when historically prices will be starting to improve.

“How do we do this?”, “What do we measure?”  unfortunately, this is not something I can totally explain in a short article. Showing you a template of crop registration sheet is a good guide and even a video tutorial will help. It is something best shown to you in your greenhouse on your crop.  A crop registration guide can be developed to suit your particular property and the crop you are growing.  I don’t blame growers for not wanting to do a crop registration, knowing the time pressures and constraints it is probably last on your list but as my accountant always says “if you are working in your business and not on it you are possibly losing money!”  I can only speak from experience and the experience and results from the growers I consult to.  The ones that do crop registration are more consistent and find it easier to make on the spot changes. 

 

A template of how a crop registration sheet could look.  This is an example for a tomato grower.  Sheets can be adapted to suit whatever you are growing.

 

For more information regarding this article and if you are interested in learning more about crop registration please contact me.

 

Article written by Stefan Vogrincic, Consultant, Grower2Grower

Categories
Irrigation/Substrates Technical

Advising on different substrates

Advising on different substrates

Growers will invariably use different substrates.   They generally use a substrate they are comfortable and familiar with, that suits their property and irrigation system.  There is a need for differing watering strategies between alternate substrates and even between the same material/composite but produced by different companies.   I advise at properties which use all types of substrate.  In my experience no one property uses the exact same watering strategy.  This is why it is imperative to understand each individual site before advising on irrigation strategies and techniques. We could all grow with a similar basic strategy, as plants do have a large spectrum they can function in, but, and it is a massive BUT, if you do grow this way you could be using excessive water and fertilizer you don’t need to, costing you extra dollars.  In contrast I have experienced under watering, which has the same effect on diminishing revenue.  Irrigation has a large influence over plant balance.

Understanding the water holding capacity, the water availability to the plants with the different substrates is extremely important.  

Rockwool, coco-peat, pumice, sawdust and perlite are the recognised and most widely used substrates in NZ greenhouses.   They all have positives. 

Below is a brief rundown of each substrate.  Over this year there will be further articles on each of these substrates, which will discuss each in more detail, including height, width and volume along with potential irrigation strategies.  

 

Rockwool:

Rockwool is an inert, an-organic.  Rock wool or Stone wool substrate is a completely natural product made from volcanic rock known as basalt.  Using the latest technologies, the basalt rock is spun into all different types of products with Horizontal fibres, with vertical fibres, with cross fibres and two-layer slabs.

 

 

  • Water holding capacity: 85% of Volume
  • Water availability capacity: 85% of Volume
  • The rock-wool fibre does not hold onto the water i.e. there is limited water tension between substrate and root system, so the fibres don’t compete with the roots and try to hold onto the water.
  • The rock-wool can be dried down in winter and the water content can be lifted in summer.
  • If you do not have hanging gutters and are growing on the ground it is necessary to have a flat level surface under your rock-wool slabs.  Polystyrene sheets 50 mm thick are good for keeping the slabs level.

Coco-Fibre

Coco-peat is an organic media.  Coco-peat can be coarse or fine material.  The best quality is sieved and the dust removed.  It is important to know the origin of the coco-peat, for instance was it grown close to the sea, as the coco-peat contains more sodium.  Coco-peat is a very easy and forgiving growing medium.

  • Water holding capacity: 85% even higher
  • Water availability capacity: 40-60% (varies between mix)
  • It is recommended that to increase root volume and coverage, to evenly spread the irrigation drippers across a slab (not necessary for bags)
  • Coco bags can sit straight onto the floor but I still recommend placing coco bags or slabs on polystyrene sheets.
  • Fantastic for recycling.
  • Renewable resource

 

Pumice

I am aware of two types used in New Zealand, river pumice and mined pumice. Pumice is an even growing media and holds approximately 30% of its volume in water, so to get the same water availability you will need a good amount of substrate.  Pumice is good for growing in the winter, you can dry the bags quickly and effectively and maintain excellent root health.  In the warmer months you need a very accurate irrigation system as you will need more frequent shots because of the reduced water holding capacity.  Recirculation system are advised if you are grow in pumice.  Pumice is sometimes mixed with sawdust to improve water holding capacity. 

  • Fantastic dry down potential in Winter
  • Easy EC control
  • Excellent for disposal

 

 

Perlite

In horticulture, Perlite can be used as a soil amendment or alone as a medium for hydroponics or for starting cuttings. When used as an amendment it has high permeability / low water retention and helps prevent soil compaction.  Like pumice it has the ability to dry down effectively in winter.  A big advantage, in my view, is in the summer, this product should not reach high temperatures, partly because of its ‘generally’ light colour and the need for frequent irrigations refreshing the substrate.  The lower temperatures have a positive effect on oxygen availability.  Certain crops are less forgiving than others when high slab temperatures are involved, like pumice though, it is recommended that this type of product is used where facilities have the ability to recycle their irrigation.

  • Fantastic dry down potential in Winter.
  • Easy EC control
  • Ability to keep cool in summer
  • Reusable if steamed

 

 

Sawdust

 

Sawdust In contrast to pumice can be far too wet in the winter but good for the summer, with all the available chip sizes the water holding capacity or water availability levels will vary. The most positive thing about sawdust is that it is a renewable source

  • Easy disposal
  • Organic
  • Renewable resource
  • Potentially high water holding capacity in summer

 

NFT systems are a different kettle of fish and these systems will be discussed in-depth later this year.

 

If you are interested in technical advice sign up to the commercial grower section.   I will be able to review and advise you on any potential changes you may need.  Terms and conditions apply. 

 

Article written by Stefan Vogrincic Grower2Grower

Categories
Greenhouse News

Bacterial Canker Re-visited

BACTERIAL CANKER: TOMATOES

 

I wrote an article in 2012 regarding Bacterial Canker.  We have had extreme temperatures over the country this Summer so far, it is a great article to remind growers of the dangers of Bacterial Canker

 

With low prices about to hit the summer crops because of plentiful supply It’s hard to justify the upkeep of the plants because the returns are so low at this time, but the driving force or motivation is that the prices in Autumn will lift, so attention to the crop in the Summer is important.  In February 2017 I came across a property in Pukekohe which had suspected Bacterial Canker.  This crop was changed in June/July of 2017 but not before well over 34-50% of the crop was lost by that time.  Prices at that time were very good so this had a large financial impact.

There are two approaches you should take once identifying you potentially have Bacterial Canker.  First you need to put measures in place to reduce the losses from the disease until the current crop cycle is finished and the second is to start to prepare for your clean up and disinfection before your new planting.

 

Photo I have taken of plant with suspected signs of Bacterial Canker

 

Bacterial Canker may be spread via sap to sap transfer.  By hand, clothing and equipment are the means it is most probably spread.

 

  • Below are some things I would do once I suspect I have Bacterial Canker.
  • Rope of the row with tape so only authorised staff can enter
  • Allocate one staff member to work on this row or rows. (If possible at the end of the day) Hopefully this staff member can carry out the entire tasks required including picking.
  • Wear protective coverings when working in these areas, gloves, overcoats and cover shoes. Hang up overcoats at the end of the rows and change gloves cover shoes regularly. Hang a hand gel at the start of the row so workers are reminded to keep their hands clean. Stress the importance to staff for wearing clean clothes each day!!
  • Make sure any equipment (trolleys or clippers etc.) are used in this area stay in that area. I would cut out infected plants and place into sealed rubbish bags and remove from the greenhouse.
  • When working on the top of your plants dip your hands between each plant in a solution which will kill bacteria.
  • I sprayed my paths where I walked with a 1 to 2 per cent solution of Sodium Hyper Chloride making sure the vents were fully opened and that I did not get any spray on the plants.

 

Suggestion:

Humidity can be your friend in the summer and especially if you don’t have grafted plants. For example, tomatoes which are 6 months or older and are struggling in the summer months, reduce your wind side vent to trap in humidity (during the day), this could increase temperatures but your plants will be thanking you because there will be humidity around the head of the plant so they will be keeping up with the workload so to speak.

 

There is an extremely lot of work to be done at crop change, but you must be extra vigilante if you have had a suspected outbreak of Bacterial Canker in your previous crop.  Below are a few suggestions.

 

  • Either completely remove the infected crop from your property or bury or burn the crop depending on your circumstances
  • Remove all substrates from the greenhouse including all loose plastic.  Remove from your property.
  • Totally clean any remaining organic matter out of your greenhouse before washing down.
  • All irrigation lines should be flushed before removing and dipping in large baths filled of an anti-bacterial solution and then re flushed when they are placed back in the greenhouse
  • The greenhouse once washed downed and emptied needs to be thoroughly sprayed, more than once if possible with strong anti-bacterial solutions which I can advise on.   
  • Do not use old hooks or string, replace if possible.All equipment needs to be thoroughly cleaned and sprayed before returning to the greenhouse. 

If you have any enquires about this article and any advice you could need please feel free to get in contact with me via the commercial grower section.  Or send a question via the contact us page. 

Article wrtten by Stefan Vogrincic Grower2Grower

 

Categories
Industry Profile

Peter Schreuder The Next Generation

The Next Generation

Part 1 in the ‘next generation of young grower’s’ series.

Peter Schreuder, Assistant Grower Manager.

 

Peter is an ambitious young grower, at the age of 22 he is an assistant grower with one of New Zealand’s largest covered crop growers.  He is currently the assistant capsicum grower at one of New Zealand Gourmets sites in Waiuku.  Peter has achieved so much in a short time, he had a passion for growing which started at a young age.

 

Peter alongside the conveyer which transports the capsicums to the packing area.  Bins, filled with capsicums, are brought from the rows and automatically emptied onto the conveyer belt, which takes them to the packing area a few 100 meters away.  The capsicums are then immediately graded and placed into the onsite cool stores ready for transport to their customers. Below MIT promotional video including Peter and vision of the Ftek capsicum conveyer. 

After a long hot period of weather Peter keeps a close eye on the root system.  Temperatures have soared to over 30 degrees in the last week, but careful management of the rootzone has enabled Peter to maintain excellent root health.

 

Peter was born in Anloo, the Netherlands in 1995.  He moved to New Zealand in 2003 with his family.   He has grown up in a family heavily involved with growing.  As happens, he has followed a career path similar to his father Roelf Schreuder.    At the young age of 15 Peter began on his path working part time during school holidays at New Zealand Gourmets tomato growing operation in Mokai.  He started, like most of us, with de-leafing and picking as his main duties.  Quickly he realised he shared the same passion for growing as his father and decided to make a career in the horticulture industry. 

In January 2014 Peter started working at Gourmet Waiuku Ltd.  That same year he attended MIT and completed his level 4 Certificate in Horticulture.  In 2015 Peter completed his Level 5 Diploma in Horticulture also at MIT.  Peter is currently doing a Bachelor of Applied Management which he will complete in the middle of this year.  The applied management will help Peter understand operation structures of business which he can then apply to any growing operation. 

Understanding his potential, Peter was quickly offered a role as assistant grower at the Waiuku site.   This site is 4.6 ha growing capsicums for export and local customers.  Peter enjoys working with capsicums and especially likes how you can control the plants growth.   He is learning how to control the environment with the Hoogendorn environmental computer.  A DWL system from Cultilene substrates allows Peter to understand the irrigation needs of the plants. 

 

Palermo, is a sweet pointed capsicum with intense flavour grown at New Zealand Gourmet Waiuku.  This is a favourite in my house.

 

One of Peters jobs is to collect data on trials.  In this case a trial of grafted plants, weekly growth rates and production figures are collected to establish the viability of new trials.

 

 

 

Special is one of the main capsicum varieties grown at New Zealand Gourmet and is grown generally for export to Japan, it is extremely popular for intense colour and flavour and size.

 

 

NZ Gourmet Waiuku.  The new addition to the site was 3 hectares built by Apex Greenhouses in 2013.  The previous owners built the remaining Faber greenhouse (now Apex) in 2007 growing Cymbidium Orchids.  The property is heated using coal and Lpg.  A huge damn collecting rain water provides plenty of storage for irrigation.

 

Peter will undertake an overseas working experience, he is currently in discussions with a seed company, which will see him move to Europe for 6 months in 2019.  On his return in 2020 Peter hopes to secure a position as a full-time grower at one of the Gourmet growing facilities. 

Peter has hobbies outside growing and is a talented sportsman.  Tennis is his favourite sport and he competes in the Counties Men’s open grade and Auckland Men’s open two division .   Peter also enjoys working with wood and making anything from bedside tables to shoe racks.  Unfortunately, by virtue of breaking his cheek bone (by his own teammate!!), he no longer plays rugby but still loves to watch the All Blacks. 

Peter is exactly what this industry wants and needs and he is part of the next generation of growers.  His passion, drive and talent will ultimately see him succeed in what is a growth industry.  He has completed the early stage of his education and will soon begin implementing what he has learnt in his career as a covered crop grower.  I am certain this is not the last we will here of Peter Schreuder.

 

 

Peter alongside recently planted chillies supplied from Gellert Nurseries Ltd.  

 

Article written by Stefan Vogrincic Grower2Grower

Categories
Greenhouse News

Bumble Bees and Pollination

Bumble Bees and Pollination

 

I quickly established, within the 20 years I grew tomatoes, my best workers were bumble bees.  They never took a sick day and worked 365 days of the year.  Bumble bees are the cheapest workers you will hire.  Our cousins over the ditch still set manually, by using vibrators or tapping crop wires, which is far more expensive than using bumble bees.

I think bumble bees should be treated kindly.  I always thought it was a good idea to make sure the bee hives had a polystyrene sheet on the top of the hive, like a small roof protecting them from high temperatures. 

I placed the hives in different areas within my glasshouse.  I made stands next to the glasshouse frame/legs, I would position each hive approximately half a metre from the top of the plant, always having the in/out door facing east.  This was more theory than scientific, as bees use the sun to navigate, I thought if the morning sun was the first thing they would ‘see’ it would make it easier for them to find their bearings and navigate to and from the hive!! (see how bumble bees navigate on the web) I advise to avoid stacking hives on top of each other, as on several occasions I observed bumble bees entering the wrong hive. 

The mark the bee imprints on the flower is always a good sign they have set the fruit. I was always encouraged when I saw a deep dark bruising on the flower but when it was faint or not visible I took notice, I’d count ‘how many flowers are still open on each truss’. If 4-5 were open (large loose tomato variety) on the current truss setting, with no visible bruising to the flower, I would take action. How many flowers can one bee physically set?  How many will they set when the temperatures are high?  I don’t know the exact answers but the first thing I would do is order extra hives.

 This flower has good bruising

 

This flower has a very light bruising but is still set.

When spring arrived, and there were tastier treats outside for my hard-working bumble bees, like naughty children they would regularly be seen flying out of the vents to the lolly shop (orchid) next door!  Therefore, I would have trouble with a consistent set.   High temperatures or heat waves in summer also could impact on the set.  This could’ve been a combination of things like more flowers for the bees to set, plants under stress from the hot temperatures effecting the pollen viability or perhaps it was just too warm and the bees went on strike!!  This January has been the hottest since records began 150 years ago.

Tomato growers, who grow ‘truss’ for the market, can not afford fruit to set slowly or they might end up with large amounts of red/green fruit on the truss at time of harvest.   Monitoring is the best way to determine if this is happening.

Bees have an important role in setting speed on a tomato plant, the faster it can set the faster the next flower can open and so on. 

 

Article written by Stefan Vogrincic Grower2Grower

Categories
Category

Back to Basics, Part One Irrigation Monitoring

Back to Basics, Part 1 Irrigation Monitoring

In our industry we can be as technical or as basic as we like when it comes to growing. However, I cannot stress enough how important basic crops recordings are to understanding what is happening with the plants health.

Irrigation needs testing at least annually to test standard deviation

Over 20 years ago I implemented a routine, given to me by one of New Zealand’s top covered crop consultants, which served me well throughout my growing career.   When it comes to irrigation it is important to know what is going in and what is coming out, if you are not doing this then you run the risk of playing the ‘guessing game’.   It is important to know the PH and EC values being applied but it is just as important to know what is in the substrate or coming out of the substrate.  I always ask this when visiting a grower, it can tell you so much.  It is equally important to know the instruments you are measuring with are well calibrated and regularly maintained- false readings will lead to big headaches. 

How many growers do standard deviation checks of their irrigation systems?  It is time consuming and boring but, as I learnt in England, it is extremely important and valuable to make sure that your delivery system (for example compensating drippers) is delivering water as evenly as possible and within the tolerance of the manufactures guidelines.  If they are not then it is either time for new irrigation or you have an issue with something blocking your drippers.  To test choose 30-40 different places in any irrigation valve and measure exactly how much water is being delivered over one or two irrigation cycles. 

Years ago, I learnt the hard way that if you don’t have an alarm to detect low water pressure it can be very costly!  So many growers do not have this type of alarm and it’s another reason to perform daily checks to ensure your irrigation system is delivering correctly, but It is possible to get caught out by this as the pressure needed to open some compensating drippers can range, for example if the recommended pressure needed to guarantee all drippers open is 1.5 bar but some drippers will open at 1.2 bar, then you better hope your mains pressure does not drop to 1.4 bar and that the one or two sample buckets you have are not from the drippers that open at 1.2 bar!!  This happened to me but fortunately it was at the end of my crop, I was so very lucky it was not at an early stage of the crop cycle.

This is not just important for the standard crops growing in greenhouses but also for the many types of berries which are now growing under cover and in substrates.

Plants cannot communicate verbally-  it’s from readings that we have a basic understanding of what is happening to a plant at different stages of the crop cycle and at different times of the year. 

Please take recordings.  Even if they are basic they are fundamental to maintaining crop health and identifying mechanical errors.

 

For advice or to learn more about the above article please contact me via the commercial growers log in or by the contact us page and please send me a message.

Article written by Stefan Vogrincic Grower2Grower