Protect Squash from Vine Borers with Floating Row Cover

Squash vine borer moths lay eggs on young stems; larvae bore in, causing sudden wilting. Cheesecloth gets heavy when wet and tears. Instead, use lightweight floating row cover (spunbonded polyester) immediately after seedlings emerge. Anchor edges with soil, support with hoops to keep fabric off plants. Remove cover when female flowers open to allow bee pollination. This physical barrier is the most effective, low-toxicity prevention.