If you spend a lot of effort in having a vegetable or flower garden, seeing aphids or lacewings on prized plants sends most people out to their local big box home improvement center for conventional or organic insecticides. Using insecticides will kill both prey insects like aphids and lacewings that eat your plants but also predator insects such as ladybugs that feed on prey insects. It may be better just to leave the plans alone and let the predator insects do their job. More »