Phyton Corporation Inc.

Phyton Corporation Inc. Phyton Corporation is dedicated to bringing the best disease control solutions to greenhouse and nur

Origins

Founded by Will Harfeldt and incorporated in 1983 as Source Technology Biologicals, Inc., Phyton Corporation was created to market a patented disease management chemistry developed by University of Minnesota scientists to fight Dutch Elm Disease. Despite its genesis, the product, which eventually came to be known as Phyton 27, found its first commercially successful application on roses a

nd cut flowers, leading the company to expand into the ornamental and nursery markets. Growers in these markets have come to know and trust Phyton and have made it one of their top choices, year after year. Entry into International Markets

In 1993 Phyton teamed with Latin American distributor, Marketing Arm International, to bring Phyton to Central and South America. Phyton 27, whose export formula was modified to be safe for food crops, now enjoys an excellent reputation among growers of fruit and vegetable crops throughout Latin America, helping to drive Phyton’s growth and success in international markets. New era, same commitment

In 2009, company founder Will Harfeldt passed away. Carrying on his dedication and legacy, our management is committed to building Phyton Corporation into a leader in plant-disease control across the agricultural spectrum. In 2010, the company introduced X3, a triple-powered disinfectant/sanitation/disease-control product known for its power and highly-concentrated formula. Our newest product is Phyton 35, a formula specifically labeled for use on food crops. We at Phyton Corporation continue to look to the future with an eye toward innovation to respond to growers’ ever-changing disease-management needs.

Bacterial leaf spots appear as water-soaked areas on the leaf surface. When the spots dry out, they appear to be thin an...
06/13/2026

Bacterial leaf spots appear as water-soaked areas on the leaf surface.

When the spots dry out, they appear to be thin and have a paper-like appearance.

Early in the season, leaf spots are spread by water splash and physical contact.

A systemic fungicide and bactericide like Phyton 27 can treat and prevent bacterial leaf spot.

We’re looking forward to  American Horticultural Society  Cultivate 26 next month! You can find the Phyton booth just to...
06/12/2026

We’re looking forward to American Horticultural Society Cultivate 26 next month!

You can find the Phyton booth just to the left of the show floor entrance.

Look for booth #3302 on the map!

See you in July!

New cuttings often suffer from water loss. Why?They lose moisture from their leaves, but they cannot replenish it yet th...
06/11/2026

New cuttings often suffer from water loss. Why?

They lose moisture from their leaves, but they cannot replenish it yet through roots. This causes dehydration in the plant.

Carefully, attentive care in optimal temperature and humidity conditions helps new cuttings make it through the precarious stage.

What does phytotoxicity look like?🌿 Leaf speckling🌿 Leaf margin necrosis🌿 Leaf margin chlorosis🌿 Spotty leaves🌿 Leaf cup...
06/10/2026

What does phytotoxicity look like?

🌿 Leaf speckling
🌿 Leaf margin necrosis
🌿 Leaf margin chlorosis
🌿 Spotty leaves
🌿 Leaf cupping or twisting
🌿 Plant stunting
💀 Plant death

You can avoid phytotoxicity in your plants by following product label directions exactly as they appear and heed all warning labels.

The patented chemistry of Phyton 35 speeds absorption into plants, enabling its active ingredient to move throughout the...
06/09/2026

The patented chemistry of Phyton 35 speeds absorption into plants, enabling its active ingredient to move throughout the plant and be retained in the bio-system for up to 21 days.

The Botrytis fungus causes gray spots on leaves and bracts or cankers on stems. It often appears gray and fuzzy. Botryti...
06/06/2026

The Botrytis fungus causes gray spots on leaves and bracts or cankers on stems. It often appears gray and fuzzy.

Botrytis spreads rapidly during periods of high moisture, areas with poor air movement, and via water splash.

A systemic bactericide and fungicide like Phyton 27 can treat and prevent botrytis.

When plants are wrapped up and packed tightly into trucks, ethylene gas can build up in the confined space. Ethylene acc...
06/05/2026

When plants are wrapped up and packed tightly into trucks, ethylene gas can build up in the confined space.

Ethylene accumulation can cause leaves to drop and buds and even whole plants to die off.

To reduce ethylene accumulation, only ship healthy plants. Wrap plants in sleeving with holes and ask buyers to unsleeve plants ASAP. Minimize time on shrink-wrapped pallets.

An integrated pest management (IPM) strategy usually includes these four steps:1. Set action thresholds2. Monitor and ID...
06/04/2026

An integrated pest management (IPM) strategy usually includes these four steps:

1. Set action thresholds
2. Monitor and ID pests
3. Prevent pests
4. Control pests

Growers across the Midwest use Phyton 27 to protect their plants against some of the most common plant diseases."Phyton ...
06/03/2026

Growers across the Midwest use Phyton 27 to protect their plants against some of the most common plant diseases.

"Phyton 27 works well on Botrytis on geraniums, powdery mildew on zinnias, and downy mildew on impatiens." Ohio Grower

Mist propagation provides ideal moisture conditions for many young plants to thrive. However, when left untreated, mist ...
06/02/2026

Mist propagation provides ideal moisture conditions for many young plants to thrive. However, when left untreated, mist propagation provides the ideal conditions for disease to thrive, too.

You need a reliable disinfectant that will control algae and pathogens in water lines without sacrificing plant health.

We offer a solution at the link in the comments!

Address

13505 Industrial Park Boulevard
Plymouth, MN
55441

Opening Hours

Monday 8am - 4:30am
Tuesday 8am - 4:30pm
Wednesday 8am - 4:30pm
Thursday 8am - 4:30pm
Friday 8am - 4:30pm

Telephone

(800) 356-8733

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