Squash bugs Anasa tristis (order Hemiptera)  are very difficult to control, especially if control measures begin when the insects have reached a mature stage. For control to be satisfactory, apply insecticides early in the season while the insects are small. When utilizing these insecticides, the materials must come in contact with the insect to be effective. Apply the chemicals to the base of the plant, underneath the foliage and, in some cases, underneath the stems of the plant for satisfactory control. Removing and destroying egg masses on the bottom of leaves aids in control. You can also do insect trapping using melon rinds in the garden and then disposing of them early in the day. Contact you local Extension office for a list of recommended insecticides.

Browse related Faqs by tag: horticulture, control, plant-insect relations, vegetable gardens, insect issues, squash bugs