Webworms on Weeping Cherry: Spray Orthene Into Webs

Weeping cherry has webs with worms eating leaves. What to do?

Pest: Fall Webworm (or similar)

• Caterpillars in silken tents; feed late afternoon/evening.
• Webs protect from birds.

Control

• Spray acephate (Orthene) thoroughly—must penetrate web and coat foliage around it.
• Dead caterpillars next day.
• Bt works only on very young larvae; these look mature.

Bottom Line

Spray Orthene into webs. Quick kill. Monitor for next generation.