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 Botanic Garden >> Gardening >  >> Question and Answer >> Plant Species >> Trees

Laurel Oak Raining Sap: Scale Insects, Soil Drench Fix

Heavy sap mist from mature laurel oak = scale insects (or aphids). Scales look like tiny turtle shells on twigs. Honeydew = "sap."

Fix

Bayer Advanced soil drench. Roots carry imidacloprid to canopy. Scales die, honeydew stops. 1–2 weeks to top. Avoids impossible canopy spray.

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Garden Articles

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