Q: Do you have any suggestions for controlling squash bugs, not squash vine borers, on yellow squash?
A: Adult squash bugs are a bit more than a half-inch long and a quarter-inch wide. They are dark brown, sometimes mottled with gray or light brown, flat-backed, and they stink when crushed. Both nymph and adult squash bugs suck sap from leaves and stems, simultaneously injecting a toxic substance that causes stem wilt. Carbaryl (Sevin) works very well. Spray as needed.
see Squash Bugs
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