Pest and Disease Controls
Effective pest and disease prevention and control are essential for producing high-quality crops. Johnny's offers information, tools and supplies to help you prevent, identify, and control many pest and disease issues. The majority of our repellents, fungicides, herbicides, and insecticides are approved for use in organic production, and listed by the Organic Materials Review Institute (OMRI), and some by the Washington State Department of Agriculture (WSDA). See our Pest & Disease Control Comparison Chart for options and recommendations. Before initiating a control program, we advise consulting with your local cooperative extension service office to ascertain and report pest and disease issues, and, if you are a certified organic grower, with your certifier to confirm the acceptability of specific controls.
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Potassium bicarbonate fungicides kill mildew on contact.
Potassium bicarbonate fungicides kill mildew on contact.
Kills snails and slugs organically, while fertilizing your soil.
Kills snails and slugs organically, while fertilizing your soil.
OMRI and WSDA listed. Effective organic treatment for powdery mildew.
OMRI and WSDA listed. Effective organic treatment for powdery mildew.
Hydrogen dioxide for field crop or greenhouse use.
Hydrogen dioxide for field crop or greenhouse use.
7-feet wide x 328-feet long netting.
Protects sensitive crops from insects, birds, and deer without overheating.
OMRI and WSDA listed. Effective organic treatment for powdery mildew.
OMRI and WSDA listed. Effective organic treatment for powdery mildew.
Four-gallon capacity to handle large jobs. Piston-style pump.
A great low-cost sprayer with four-gallon capacity to handle most large jobs.
Safely repels rabbits, chipmunks, squirrels, voles, nutria and opossum.
OMRI listed. New granular formulation for rabbits and other small problematic critters!
Contact insecticide absorbed through the pest's cuticle (skin).
Contact insecticide absorbed through the pest's cuticle (skin).
Very effective as a foliar spray or as a drench for root diseases.
Very effective as a foliar spray or as a drench for root diseases.
WSDA listed. Pyrethrin spray for use on organic crops and ornamentals.
WSDA listed. Pyrethrin spray for use on organic crops and ornamentals.
Potassium bicarbonate fungicides kill mildew on contact.
Potassium bicarbonate fungicides kill mildew on contact.
For Colorado Potato Beetles and Spotted Wing Drosophila.
Extremely effective against Colorado Potato Beetles and Spotted Wing Drosophila.
A "must-have" copper for your disease prevention rotation schedule.
OMRI listed. Superior disease control provides for a more marketable crop at harvest.
Lightweight grade for insect control.
Lightweight grade for insect control.