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Sawfly Larvae on Deodar Cedar: Not Caterpillars, Need Different Spray

Yellow “caterpillars” on newly planted deodar cedars are actually red-headed pine sawfly larvae (wasp relatives). Bacillus thuringiensis (Bt) won’t work; use a general garden insecticide instead.

About Gardening: Rust-Colored Gravel and Cedar Needles: Fertilizer or Irrigation Overspray?; Large-Scale Cedar Reforestation: Direct Seeding vs. Government Resources; Identifying Cedar Trees with Orange Seed Pods; Bagworm Infestation on Blue Spruce, Evergreens, and Cedars: Full Control Guide; Leafrollers: Caterpillar Pests That Roll Foliage for Protection; Transplanting Cedar Trees: Red Cedar vs. Leyland Cypress for Wildlife; Why Cedar Trees Grow Along Fence Lines: The Role of Birds; River Birch Sawfly Larvae: Not Caterpillars, Require Different Control; Managing Tent Caterpillars in Trees; Deodar Cedar Decline: Wet Feet Fatal

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