Yellow-orange beetles with black stripes that chew large, irregular holes in leaves. Their plump reddish-orange larvae also feed heavily and can rapidly strip plants of foliage.

Flat, dark grey-brown bugs that gather on squash plants and suck sap from leaves and stems, causing yellow spots, wilting and eventually brown, dead foliage.

Small green caterpillars tunnel into onion leaves and bulbs, leaving shredded foliage, feeding tunnels and piles of frass; severe feeding can damage the growing point and bulb.

Tiny, slender insects scrape and suck sap from onion leaves, leaving silvery-white streaks and patches that can weaken plants and reduce bulb growth.

Small dark beetles enter damaged or exposed ears and feed on kernels, often gathering around already injured, fermenting or rotting corn.

Mottled grey-brown moth with a small silvery-white mark on each forewing; its green caterpillars move with a distinctive looping motion and chew ragged holes in leaves.

Tiny, soft-bodied insects clustered on leaves and stems, causing curling, yellowing or distorted growth.

Small grey-brown moth; its small green caterpillars wriggle when disturbed and chew holes or “windowpanes” in leaves.