Insecticide drift, viral disease, or parasite outbreak likely wiped out the local population of catalpa sphinx moth (Ceratomia catalpae).
Catalpa Near New Pavement: Monitor for Root/Canopy Conflict
Birch Defoliation by Caterpillars: To Spray or Not?
Saving Young Dogwoods from Borers
River Birch Defoliated by Caterpillars: Identify, Spray Now, Prevent Next Year
Diagnosing Two Problem Trees: Borer and Canker
Catalpa Worm Farming: Trees First, Then Eggs—Not Incubators
Cottonwood Seedlings: Transplant Only If Seed-Grown, Not Root Suckers
Boosting Catalpa Worm Populations and Managing Ants
Identifying a Tree with Pea-Pod Seedpods and Fan-Shaped Leaves
Catalpa Worms (Catalpa Sphinx): Life Cycle, Control, and Fishing Bait Value
Walnut Caterpillar Outbreak on Black Walnut: Identification and Control
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