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Butterfly Bush Stem Borers: Cut Infested Stems, Use Orthene

Holes in branches = stem borers. Cut out infested stems, burn them. Spray Orthene. Cut all butterfly bushes to ground in fall, remove debris—sanitation reduces pests.

Perennials: Spider Mites on Butterfly Bush: Systemic Insecticide Risks to Pollinators; Why Your Snowball Bush Won't Bloom: Pruning, Light, and Fertilizer Fixes; Transplanting Butterfly Bush Root Sprouts; Identifying Mystery Shrubs: When Common Names Vary by Region; Cape Honeysuckle in Henderson, NV: Dormant, Not Dead; Butterfly Bush Deadheading: Trim Back to Shape, Not Just Snip Tips; Lilacs Fail in Tropical Hawaii; What Is Bt (Bacillus thuringiensis) and How Does It Control Caterpillars?; Butterfly Bush Not Leafing Out After Fall Pruning; Butterfly Bush: Beautiful Pollinator Magnet with Invasive Tendencies

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