Small Brown Bugs on New Knock Out Rose: Rose Slugs/Sawflies

Identifying Ash-Colored Bugs on Knock Out

New Knock Out (Zone 6a) has small brown tube-shaped bugs on leaves/flowers, eating holes. Photo provided.

Diagnosis: Rose Slugs / Sawfly Larvae

• Suck juices → windowpane spots → holes.
• Light damage: pick off leaves, kill bugs.
• Spread: any rose insect spray works.

Note

Not aphids. Sawfly larvae look like caterpillars but are primitive wasp larvae.