June 22, 2007, Newsletter Issue #166: Leaf Rolling Sawfly
Tip of the Week
The adult sawfly lays itīs eggs on rose leaflets.Very cleverly, it injects a poison into the leaflets causing them to roll up tightly lengthways, thus protecting the eggs and subsequent larvae from attack by predators.
The bush can become weakened during severe attacks.
Picking off and destroying affected leaves during minor attacks is an effective control.
Always remove fallen leaves and spray with a systemic incecticide at fortnightly intervas to control
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