Pepper, Eggplant: Whitefly
categories: Pepper, Eggplant Pepper, Eggplant Insects Vegetables
last review date: 2024-06-05 02:07
Photo by: R.D. Akre
Biology
Whiteflies are common pests in the greenhouse and garden. The adult whitefly is a tiny (1/10″ or less), white, moth-like insect. They typically feed on the underside of leaves, flying up in clouds when disturbed. The immature whiteflies (nymphs) are also found on the underside of leaves, and are oval, flat, and variously-colored. Whiteflies feed by sucking sap from plant tissues. Damaged leaves wilt, turn yellow or brown, and may drop. Plants may be stunted by severe infestations. Whiteflies also produce honeydew, a sweet, sticky material which may attract ants or become covered with growth of dark sooty mold.
Management Options
See "Using Integrated Pest Management (IPM) in the Landscape" for successful problem management techniques.
Non-chemical Management
Select non-chemical management options as your first choice!
- Inspect new plants thoroughly before planting. New plants often introduce whiteflies.
- Natural enemies such as ladybird beetles, spiders, and parasitic wasps help control whitefly populations. Avoid use of broad-spectrum insecticides which kill beneficials.
Chemical Management
IMPORTANT: For more information on using pesticides, visit Home and Garden Fact Sheets | Pesticide Resources and Education Program | Washington State University.
- Apply according to label instructions when whitefly is first seen.
Approved Pesticides
Examples of pesticides that are legal for home use in Washington State are listed below.
The list may not include all products registered for this use.
WSU Extension programs and employment are available to all without discrimination.
Evidence of noncompliance may be reported through your local Extension office.