When Stephanie Blevins Wycoff, a consumer pesticide safety expert with Virginia Cooperative Extension, noticed damage on her tomato plants last spring, she didn’t reach for a pesticide. Instead, she began an investigation to find the culprit and determine what she should do to protect her plants.
“It turned out to be tomato hornworm, but by the time I found it, it had been parasitized by insect larvae and was no longer a threat,” said Blevins Wycoff.
As a Virginia Cooperative Extension scientist, Blevins Wycoff understands the important role all Virginians can play in protecting our commonwealth’s environment and natural resources. Using pesticides safely, correctly, and only when necessary by developing an integrated pest management plan is one way we can advance the wellbeing of our environment and communities.
Home gardeners who identify frustrating and destructive garden pests might be tempted to turn to the internet where recipes for homemade pesticide sprays have proliferated in recent years. Although they may be touted as cure-alls, mixtures made from household ingredients like dish soap or vinegar have not been vetted for effectiveness or tested for potential environmental impacts. They can also damage plants by causing chemical burns.
“Before reaching for a chemical, we hope that people will try non-chemical control options first. That’s where integrated pest management comes into play,” Blevins Wycoff said.
Gardeners interested in learning more about an integrated pest management program can read An Introduction to Integrated Pest Management or the 2022 Pest Management Guide for Home Grounds and Animals.
In many cases, pest or disease problems may also be controlled through non-chemical means, for example, by physically removing insects or diseased plant material. By identifying the pests and diseases they encounter in their gardens and monitoring carefully for signs of these problems, gardeners can stay on top of pests before they damage plants enough to reduce crop yields.
Although they can be annoying or unsightly, in some cases, pests or diseases may not cause enough damage to warrant intervention at all.
If gardeners do determine a pesticide is necessary, Blevins Wycoff recommends local Virginia Cooperative Extension offices as the best source of information for treatment. As trained experts and members of your community, Extension agents and Extension Master Gardener volunteers can help gardeners put scientific ideas into action as they identify pest problems, determine the best course of action, and if necessary, make a recommendation for a specific pesticide application based on the situation.