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Squash vine borer

Melittia gloriosa

Clear-winged moth mimicking wasps with orange abdomen bands. Larvae bore destructively into squash and pumpkin stems. Monitor for early pest management in vegetable gardens.

Plants that support Squash vine borer

2 plants

California Manroot

Marah fabacea

moderate

vine

Larvae bore through stems in mid to late summer

Bay Area native

Oregon Bigroot

Marah oregana

high

vine

Larval development on Marah species foliage

Bay Area native