Oval Holes and Silvery Spots on Lovestruck Rose—Rose Slugs

Transparent “windowpane” holes with silvery-gray tissue are classic rose slug (sawfly larvae) damage. They feed on leaf undersides, eating green tissue between veins. Look for small, slimy, greenish caterpillars.

Control

• If minor: ignore—they’re short-lived; new leaves replace damaged ones.
• If severe: spray Ortho Rose Pride Insect Control or spinosad on leaf undersides.
• Horticultural oil smothers larvae.

One generation per year; damage is cosmetic, not fatal.