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Controlling Spanworms on Maple Trees in Newfoundland

Insecticide Options for Spanworm (Cankerworm) Outbreaks

Trunk injection not recommended; legality uncertain in Canada. Spray Bt (Bacillus thuringiensis) on new leaves early—caterpillars must ingest it. Contact insecticides (e.g., Sevin) work faster. Contact local entomologist via carleton.ca for region-specific advice.

Trees: Bagworm Control on Pecan: Tanglefoot and Orthene; Tan Worms in Kitchen Sink/Strainer: Need Photo or Sample; Inchworm Invasion Indoors: Source and Organic Control; Tiny Worms on Florida Lanai After Rain: BT Controls Them; Controlling Root-Knot Nematodes in Vegetable Gardens; Worms in Spider Plant Soil: Flood, Don't Repot; Worms in Peace Lily Soil: Identification and Removal; Catastrophic Palm Weevil or Borer Infestation: Urgent Diagnosis and Systemic Treatment; Weeds in Blue Rug Juniper: Hand Removal Only — No Sprays; Small Worms in Pond: Likely Harmless Insect Larvae

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