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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Powerful weapon against Colorado Potato Beetles.
Powerful weapon against Colorado Potato Beetles.
Potassium bicarbonate fungicides kill mildew on contact.
Potassium bicarbonate fungicides kill mildew on contact.
Environmentally-safe alternative to synthetic, toxic herbicides.
A fast, effective, and environmentally-safe alternative to synthetic, toxic herbicides.
7-feet wide x 328-feet long netting.
Protects sensitive crops from insects, birds, and deer without overheating.
Powerful weapon against Colorado Potato Beetles.
Powerful weapon against Colorado Potato Beetles.
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.
Environmentally safe alternative to synthetic, toxic herbicides.
A fast, effective, and environmentally-safe alternative to synthetic, toxic herbicides.
Eliminates human and plant spoilage pathogens on contact.
Keep your post harvest equipment, fruits, and vegetables free of disease.
WSDA listed. Pyrethrin spray for use on organic crops and ornamentals.
WSDA listed. Pyrethrin spray for use on organic crops and ornamentals.
Prevent fungal problems with this 4% copper solution. 1 Pt.
Prevent fungal problems with this 4% copper solution.
Potassium bicarbonate fungicides kill mildew on contact.
Potassium bicarbonate fungicides kill mildew on contact.
Trigger your plants' natural defense systems.
Trigger your plants' natural defense systems.
Kills snails and slugs organically, while fertilizing your soil.
Kills snails and slugs organically, while fertilizing your soil.
Contact insecticide absorbed through the pest's cuticle (skin).
Contact insecticide absorbed through the pest's cuticle (skin).
Broad spectrum insecticidal control on over 300 insect species.
Broad spectrum insecticidal control on over 300 insect species.
Safely repels rabbits, chipmunks, squirrels, voles, nutria and opossum.
OMRI listed. New granular formulation for rabbits and other small problematic critters!
All-natural damping-off, root-rot, and phytophthora control.
Four-gallon capacity to handle large jobs. Piston-style pump.
A great low-cost sprayer with four-gallon capacity to handle most large jobs.