JH Biotech Inc.

Fosphite® | Fungicide

$54.00

Description
Specification
Application

Fosphite® is a systematic fungicide approved by the US EPA as a reduced risk pesticide. Fosphite® provides excellent control of Downy Mildew, Phytopthora, and Pythium on crops, ornamentals, and bedding plants. With a low application rate, Fosphite® works as both a foliar and soil applied fungicide for safe and superior disease protection. 

  • Main Ingredients

  • Monoand dipotassium salts of Phosphorous Acid

    53.0%

Product Form: Liquid

Suitable for: All Plants

Application Methods:

  • Soil Application
  • Foliar Application

Due to state registration rules, this product can only be shipped to the following U.S. states:
Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming.

Safety Data Sheets can be downloaded here.
Return Policy can be found here.

How does Fosphite® help?

  • 4-hour Re-Entry interval
  • 0-day Pre-Harvest interval
  • 2 modes of action: fungicide and growth promoter

Please see the attached label for details. Feel free to contact us if you have any questions!

Fosphite book label (2024)

  • Store in a cool, dry place. 
  • Do not reuse or refill the container. 
  • If empty: Dispose of it in the trash or recycle if available. 
  • If partially filled: Contact your local solid waste agency for proper disposal. 
  • Never pour unused products down any drain. 

Recently viewed products

Customer Reviews

Based on 6 reviews
67%
(4)
0%
(0)
33%
(2)
0%
(0)
0%
(0)
P
Paul Castiglia

Fosphite® | Fungicide

T
Thomas Gresko
Questions

Still waiting on response from questions posed

Thank you for your feedback. Our records show we responded to your inquiries on June 12 and June 19, 2025. Please check your inbox and spam folder. If you haven’t received them, feel free to contact us at orders@safergro.com or (805) 290-3017 — we're happy to help.

S
Steve Tetreault
Hope it works on my Beech Tree

The only negative issue was the container leaked inside the bag and all the paperwork attached to the container was ruined.

We're sorry about the leak and damaged paperwork. A replacement was shipped on June 11 and delivered on June 17. We hope it’s working well for your Beech Tree!

S
Steven Moes
Great product. Thank you.

This company I am truly amazed. The products work. And I got them ASAP. I was shocked. Most companies today under deliver. These guys knock it out of the ballpark.

T
Ted Barbeau

A+