Crab apple and fuchsia thrived until lilacs and roses planted nearby. Now all have leaf curl; crab apple has black spots on fruit, looks dead. Expert: multiple species = multiple problems. Crab apple: apple scab (fungal)—treat with fungicide at first bud break next spring, repeat until fruit near mature. Use Maneb or Daconil if no specific product. Other plants: leaf curl likely aphids or scale. Check leaf undersides. Treat with Bayer Advanced Tree & Shrub Insecticide soil drench—systemic, long residual.
New plants didn’t cause it; they just revealed existing pressures.
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