What's eating my buttercup squash?

Buttercup squash (Cucurbita maxima 'Buttercup') faces the standard cucurbit pest complex. Squash vine borers kill vines before harvest in eastern North America. Squash bugs build large, hard-to-control colonies. Cucumber beetles vector bacterial wilt. Powdery mildew hits late-season foliage reliably. Deer and groundhogs target fruit as it colors.

Sudden mid-season wilt; orange-white larvae inside stems; sawdust frass at base entry hole; vine section above entry point collapses. Foil stem wrap; late planting to avoid peak flight; row cover until pollination; slit stem above entry, remove larva, cover with moist soil to encourage re-rooting.

Egg clusters beneath leaves; sap-sucking adults and nymphs cause yellow blotches, wilting, and vine death if unchecked. Daily egg-mass removal; hand-picking; board traps; diatomaceous earth around plant crowns; neem oil spray.

Chewed leaves and flower petals; bacterial wilt causes irreversible collapse; fruit scarring from adult feeding. Row covers through vine establishment; yellow sticky traps; pyrethrin applied in the evening to avoid harming pollinators.

Gnaw through developing fruit skin to eat the flesh; also browse young vine tips and leaves; damage often overnight. Bury wire mesh fence 12 inches underground and bend it outward in an L to prevent burrowing; live-trap and relocate per local regulations.