Question: My squash plants’ leaves are tan and dead. It started with the bottom leaves, but now I’m afraid I’m going to lose the entire planting.

Answer: That sounds like spider mite damage. They will cause tiny tan specks all over the leaves, usually showing up in late May and June. Spider mites are the most damaging vegetable garden pests that we have. As the problem gets worse the leaves eventually turn brown and crisp. Control them as soon as you see the first mottling by spraying with a labeled insecticide.