April 2018
Homeplace & Community

What Gardeners Should Know About Organic Insecticides

Insect pests never rest, so when it comes to selecting the correct insecticide, neither should you!

Organic insecticides are critical tools to insect control, especially in the hot and humid South where insect pests never seem to rest. Even in the dead of winter, insect pests such as the yellowmargined leaf beetle can be active in the soil on a warm, winter day (just look under some turnip plants and other host plants for deep-brown larvae that may be in the ground). In most cases, vegetable plants should be protected early in the season with a variety of integrated, pest management tactics. Insecticides are the last resort for pest management in a sustainable system. With latest advances in IPM technologies, there are several types of organic insecticides to choose from – namely, physical desiccants, contact and stomach poisons, and products with volatile action. Here is a brief description of modes of action and usage tips:


Home and Urban Garden IPM Toolkit is Now Available!

A brand-new Urban Farm IPM Toolkit is now available for urban farmers and community gardeners. This slide chart has both conventional and organic insecticide listings for nearly 20 different crops.

Auburn University also has a listing of common insect pests with images that may help when scouting garden vegetables. Email This email address is being protected from spambots. You need JavaScript enabled to view it. to get your copy.


Ayanava Majumdar is an entomologist with Alabama Cooperative Extension System.