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Whiteflies on Collards: Identification and Control

A Significant Cool‑Season Pest

Whiteflies suck sap from collard leaves, eventually killing them. Effective treatments:

Organic: Neem oil (reapply weekly)
Synthetic: Acetamiprid (Ortho Flower, Fruit & Vegetable Insect Killer)

Follow all label directions, especially pre‑harvest intervals.

About Gardening: Clarifying T.S.O. and S.O. Horticultural Oil Designations; Neem Oil Timing for Ginkgo: Start at Leaf Expansion; Grasshoppers Eating Plumeria Leaves: Neem Oil Spray Test; Scale Insects on Container Vegetables: Identification and Organic Control; Managing Iris Rust Without Starting Over; Collards Bolting in Spring: Harvest Now, Plant Fall Instead; Horticultural Oil: Buy, Don't Brew; Controlling Magnolia Scale and Sooty Mold; Managing Dichondra in Shady St. Augustine: Consider Alternatives; When to Cut Back Lilies: Leave Green Foliage Until Frost

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