Keep an eye out for Squash Bugs. They usually attack Squash/Zucchini and Cucumber plants. The eggs look like little yellowish BBs and then the bugs grow to look like the photos here. Squash bugs are often mistaken for stink bugs, as they are similar in appearance and both have a foul odor when squashed. However, stink bugs are wider and rounder than squash bugs.
The squash bug is fairly large (over ½-inch long) with a brownish or gray body and flat back. The edges and undersides of the abdomen have orange stripes. They are able to fly, but they often simply walk around on plants. Young squash bugs, or squash bug nymphs, are gray and have black legs. They move quickly and often in groups on the undersides of leaves.
These bugs inject a toxin into the plant and suck the sap right out of it with their sharp, sucking mouthparts. This causes yellow spots that eventually turn brown. The leaves will wilt because the damage prevents the flow of nutrients to the leaves, and then they will dry up and turn black, crisp, and brittle. The leaves also sometimes have ragged holes. Smaller plants will die, and squash bug feeding can decimate young fruit.
PAYNE’S TIP: The best way to get rid of these little critters is to spray them with a completely safe insecticides such as Triple Action or Neem Oil. Ask our gardening experts which is best for your needs.