APHIDS MITES
Aphids are small, pear-shaped insects which suck plant sap from tender plant tissues. Their feeding causes leaf, bud and flower distortions. Aphids produce a sticky substance called honeydew that supports the growth of sooty mold and the spread of viral diseases.

Mites are barely visible but can cause significant plant injury. Damage appears as a light speckling on leaves and a bronze discoloration. To diagnose, tap an infested branch over white paper. Mites will appear as tiny moving specks.
APHID AND MITE —CONTROL OPTIONS
There are usually several management options for solving any pest or disease problem. Use the non-pesticide approach whenever possible, saving pesticide use as the last line of defense. If a pest is identified at a damaging level, select a control targeted to the problem. This is called “Integrated Pest Management ”or “IPM ”.

PREVENTING INSECT INFESTATIONS
To prevent infestations, avoid heavy doses of highly soluble nitrogen fertilizer. Plant a variety of pollen and nectar flowers which attract beneficial insects.

CONTROL OPTIONS
First observe the aphid or mite problem for several days-allowing the natural enemies of aphids and mites to appear. Prune infested branches and continue observations.

Strong water spray: Knock aphids and mites off of plants with a strong spray from a garden hose. Repeat often, since new populations develop quickly.

Beneficial insects such as ladybugs (lady beetles) and praying mantis: Release insects at the base of plants, according to instructions.

Horticultural oil: Spray on labeled trees in late winter/early spring to smother over-wintering eggs. Highly refined oils can be applied later in the growing season. For spider mites, timing of applications is critical. Follow label directions.

Insecticidal soap: Spray during growing season, following label directions. Repeat applications, since soaps are only effective when wet.
   
READ THE LABEL BEFORE BUYING ANY PESTICIDE.
Re-read the label before using, storing or disposing of the pesticide — the label is the law. Following label instructions will help reduce risks to human health and the environment.
Sources of information:
Greg Patchan, Horticulture Agent, Oakland County MSU Extension.

Ellis and Bradley, Natural Insect and Disease Control, Rodale Press

Ellis Taylor ’s Weekend Gardening Guides:

Organic Pest & Disease Control, Houghton Mifflin

FOR ADDITIONAL INFORMATION:
Oakland County Garden Hotline: 248/858-0902

National Pesticide Telecommunications Network (NPTN):1-800-858-7378
(Information about environmental and health effects of specific chemicals)

Household pesticide disposal: If you live in a SOCRRA community, call for an appointment: 248/288-5153
Download PDF of this Tip Sheet