Increase crop yield and pasture productivity with our unique, NZ made plant elicitor biostimulants.

Key Results:

Proven Performance in horticulture and livestock production

  • $5,000+/ha increased OGR in green kiwifruit

  • 30% higher apple yields + high colour

  • 80%+ more pasture growth

  • 8.5% more autumn milk solids

  • 31% more goat milk production

  • 24% less urea excretion in dairy cows

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For farmers and growers who think for themselves.

Zest Biotech is for growers and farmers who want solutions that actually work.

Whether you farm organically, biologically, regeneratively, or conventionally, our products are designed to deliver real results in the field.

From horticulture and viticulture to pasture-based livestock systems, productivity depends on reliable inputs you can trust season after season.

Unlike many suppliers, we manufacture our products right here in New Zealand. That means when you have a question, you’ll get a straight answer from the people who make the product.

Our sprays are certified organic and ACVM exempt, making them safe to use on kiwifruit, grapes, pasture, flowers and more.

And because performance matters, every product is backed by our money-back guarantee.

Backed by science. Proven on farms. Trusted by independent growers for over 15 years.

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Product range

Find the Right Products for Your Crops

 
young kiwifruit leaves

Kiwifruit

sunset vineyard

Vine and Tree Crops

dairy cow

Dairy Farms

red and orange gerbera flowers

Floriculture

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lambs

Dry Stock Farms

carrots growing in soil

Home Gardens

Our Products

We have a plant-elicitor biostimulant for every crop - tree and vine crops, annual crops, pasture and home gardens.

Our products are safe and easy to apply, can be mixed with most common orchard/farm sprays and are BioGro certified for use on organic crops.

Chose from our range below:

Agrizest

Agrizest is an elicitor of the phenylpropanoid pathway for plant health and orchard gate returns. For all tree and vine crops.

  • Kiwifruit

  • Grapes

  • Apples

  • Other Tree Crops

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Biozest

Biozest is scientifically proven to improve pasture growth and quality, to increase milk & meat production and reduce impact.

  • Dairy Pasture

  • Sheep Pasture

  • Beef Pasture

  • Baleage Production

Learn more

Primazest

Primazest is formulated for early season kiwifruit growth and grafts and to improve quality & yield in annual crops and floriculture.

  • Early Growth Kiwifruit

  • New Grafts

  • Flower Production

  • Annual Crops

Learn more

Naturezest

Naturezest helps home gardeners grow healthy, resilient gardens full of flavourful fruit and vegetables and bright, long lasting flowers.

  • Home Gardens

  • Fruit Trees

  • Vegetable Gardens

  • Houseplants

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Benefits of Using Zest Biotech’s Products

nature-food-salad-green-produce-vegetable

Healthy Crops, Productive Livestock

Our range of biostimulants improve crop and pasture performance. Our products are safe to handle and apply. ACVM exempt and Certified Organic by BioGro, there is a Zest product for all crops and farm types.

Scientifically formulated to trigger plant responses and increase the production of bioactive compounds. There is no product 'just like' Agrizest or 'just like' Biozest. Our technology is unique.

livestock on pasture

Proven Performance

Key Results:
- increased returns per hectare by $5000 in green kiwifruit
- increased apple yield by 30%, high percentage of high colour fruit
- increased pasture productivity by 80+ %
- increased pasture palatability by 21%
- milk solids (autumn) increased by 8.5%
- dairy goat annual milk volume increased by 31%
- urea excretion in dairy cows reduced by over 24%

Healthy Returns, Low Environmental Impact

Healthy plants produce quality crops and healthier returns. Biozest treated pasture enables livestock to produce more milk and meat and less waste. Our products help Kiwi farmers and growers to produce the best produce in the world, sustainably.

Research

 News

Featured
Vine Decline Update
Vine Decline Update

Practical Guidance for Growers.

Words from our Founder, Nathan Balasingham

I’m reaching out because kiwifruit vine decline syndrome (VDS) is becoming a bigger problem in orchards across New Zealand. I want to share some easy-to-follow advice to help you keep your vines healthy and your orchard productive.

Here are some important steps to consider:

Steps to improve fruit quality
Steps to improve fruit quality

While the industry undertakes formal investigations, we suggest some immediate steps growers can take to improve fruit quality and vine health, increase fruit value and reduce production costs.

Pasture spray 'has potential to help reduce emissions'
Pasture spray 'has potential to help reduce emissions'

"I have begun using Biozest this season, and my contract milker and I have been impressed with how our pasture base has thickened, and the plants retained palatability for longer during seed head emergence," he told Dairy News.

"We have seen a 3% increase in MS production this season compared to last year which was a record for us.

Put Some Zest In Your Pastures
Put Some Zest In Your Pastures

John and Michelle Cameron run Red Devon beef cattle on very hilly country in Northland and say the main things they’ve noticed using Biozest is their stock are in better condition, which they’ve held right through the season, and are very content. “The calves have grown rapidly with their mothers’ milk appearing to have a thicker consistency which would seem to be giving better nutritional value. Our pasture appears denser with better nutritional value as well.”