Controlling Woolly Hackberry Aphids

Problem

Sister in Montgomery, AL has "white woolly hackberry flies" infesting spring garden. Needs affordable control.

These are woolly hackberry aphids. They suck sap and excrete massive honeydew, coating surfaces below and feeding black sooty mold.

Use a soil drench containing imidacloprid (see sources). Apply in April when leaves expand for best uptake.

Reference: Woolly Hackberry Aphid

About Gardening: Diagnosing and Treating Hackberry Tree Decline: Sooty Mold, Insects, and Squirrels; Hackberry "Sap" on Truck: It's Honeydew from Aphids/Scale; Managing Aphid Honeydew on Large Landscape Trees; Managing Aphids on Pumpkins: Water Spray, Soap, and Trap Crops; Bed Bug Infestation: Why Professional Treatment Is Essential for Complete Eradication; Controlling Dollarweed in St. Augustine Grass: Herbicides and Cultural Practices; Wild Violet Control in Bermuda Lawn; Trapping Armadillos with a Drift Fence; Woolly Apple Aphid: Root and Bark Feeder Requiring Dual Treatment; Eradicating Invasive Privet: A Long-Term Management Plan

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