Both wingless and winged adults develop on the plants. Spider Mites Spider mites are tiny almost microscopic pests that feed on the underside of leaves. They remove the sap, causing the leaves to become discolored. Where populations are heavy, they can cause leaves to drop off. They vary from light green to red.
Squash bugs extract sap from plants with their sucking mouthparts.
Leaves and vines that are fed upon wilt rapidly, become blackened, and die. Because the squash bug is one of the most difficult insects to control, insecticide should be applied on schedule. The stink bug is brown, green, or black, and is shield-shaped. It may or may not have markings. Stink bugs discharge a foul odor when disturbed.