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Sweet Broom (Cytisus spachianus) Leaf Drop in Chula Vista

Chris's sweet broom lost all foliage after two years; wood is still green. Wait to see if it leafs out next spring. Possible causes: overwatering (drought‑tolerant once established), genista caterpillar (look for 1‑inch brown caterpillars with white hairs and webbing), or root damage from gophers. Treat caterpillars with Bt, diazinon, chlorpyrifos, or orthene. Consult San Diego County Extension (UC Davis).

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