Cucumber, Pumpkin, Squash - Home Use Insecticides

Insecticides registered for Home use on Cucumber, Pumpkin, Summer Squash, & Winter Squash in Utah, Organized by Mode of Action (MoA). For treatment on other cucurbits, always check the label.

Active Ingredient Brand Name MoA Residual (days) Aphids Cucumber Beetles Squash Bug Spider Mites
carbaryl Garden Tech Sevin 5% Dust Bug Killer 1A 14   X X  
malathion Spectracide Malathion, Ortho Malathion 1B 7 X V    
cyfluthrin BioAdvanced Vegetable & Garden Insect Spray 3 14   X    
permethrin Bonide Eight Garden Dust 3 14 X X X  
pyrethrins Monterey Bug Buster-OOB;  Worry Free Insecticide and MiticideB 3 5 X X X See label
zeta-cypermethrin GardenTech Sevin 3 14 X X X  
pyrethrins + canola oil X Espoma Insect ControlB; Monterey Take Down Garden SprayB 3/NC 5 X See label   X
pyrethrins + potassium salts of fatty acids (insecticidal soap) Safer Brand Tomato & Vegetable Insect KillerOB 3/NC 5 X X   See label
pyrethrins + sulfur Bonide Tomato and Vegetable 3 in 1B; Natria Insect Disease & Mite ControlB; Ortho Insect Mite & Disease 3 in 1B 3/M2 5 X X See label X
oil: plant based Natural Guard Neem SprayOB; Monterey Neem OilOB; Garden Safe Neem OilOB NC 1 X     X
potassium salts of fatty acids (insecticidal soap) Safer 3-in-1 Garden SprayB; Natural Guard Insecticidal SoapB; Natria Insecticidal SoapB NC 1 X     X

R=Restricted Use
NC=Not Classified
UN=MoA Unknown

Note: All brands are registered trademarks. The brands listed in this table are not all-inclusive, but are meant to provide examples of products for these crops in Utah. Always check the label for the specific crop you are treating, application and safety information, and protection and pre-harvest intervals.

Protection of Pollinators: Look for the “bee-box” or “bee hazard icon” on product labels and read the restricitions and instructions to protect bees and other insect pollinators. Bees and other pollinators will forage on plants when they flower, shed pollen, or produce nectar. Follow these steps when using products that are hazardous to bees: 1) minimize exposure of the product to bees and pollinators when they are foraging on pollinator attractive plants around the application site 2) Minimize drift of the product on to beehives or to off-site pollinator attractive habitat as drift into these areas will kill bees.