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Yellow-Necked Caterpillars on Blueberries: Control with Bt or Spinosad

Yellow-necked caterpillars (black with yellow stripes, form a "C" when disturbed) can defoliate blueberries but rarely kill plants. Spray with Green Light Spinosad or any Bacillus thuringiensis (Bt) product for control.

About Gardening: Redheaded Pine Sawfly: Identification and Control on Mugo Pine; Caterpillars on Live Oak: Yellownecked or Orangestriped Oakworm; Yellow-Necked Caterpillars on Blueberries: Early Bt Control; Attracting Catalpa Caterpillars: Sell Caterpillars with Trees; Growing 'Pink Lemonade' Blueberries: A Novelty with Caveats; Azalea Caterpillars: Red-Headed Defoliators Controlled by Bt; Choosing Blueberries for Zone 7a/7b: Southern Highbush or Rabbiteye; Blueberry Yellow Leaves: Iron Chlorosis from High Soil pH; Pruning Rabbiteye Blueberries for Maximum Fruit; Yellow-Necked Caterpillars on Blueberries: Treat with Spinosad or Bt

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