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Russ Ottens, University of Georgia, Bugwood.org
Home Orchards, Table 2.1. Important Insects and Mites - Articles Articles
Informational table showing direct and indirect fruit pests. More
Leafhopper nymphs are whitish green, smaller, and wingless, and are usually found on the undersides of older leaves. Photo by G. Krawczyk.
White Apple Leafhopper - Articles Articles

White Apple Leafhopper

Grzegorz (Greg) Krawczyk, Ph.D.

White apple leafhopper, Typhlocyba pomaria, was abundant in many apple orchards throughout the state until the introduction of the neonicotinoids about 10 years ago. More
Source: Influentialpoints.com under creative commons license 3.0. creativecommons.org/licenses/by/3.0/legalcode
Apple Grain Aphid - Articles Articles

Apple Grain Aphid

Grzegorz (Greg) Krawczyk, Ph.D.

Apple grain aphid, Rhopalosiphum fitchii, rarely causes damage to apples, but it is the first aphid to appear on apples in spring and may appear in large, but innocuous, numbers. More
Young galls are light in color and with age become dark and hard, ½ inch to 3 or 4 inches in diameter. Photo by B. Butler.
Crown Gall - Articles Articles

Crown Gall

Kari A. Peter, Ph.D.

Crown gall is caused by a bacterium, Agrobacterium tumefaciens, and affects apples, pears, quince, peaches, nectarines, apricots, plums, and cherries. More
Source: K. Yoder.
Brooks Fruit Spot of Apple - Articles Articles

Brooks Fruit Spot of Apple

Kari A. Peter, Ph.D.

Caused by the fungus Mycosphaerella pomi, Brooks fruit spot is also known as Phoma fruit spot. The disease attacks apple and crabapple trees and is rarely found in well-sprayed orchards. More
Eric Coombs, Oregon Department of Agriculture, Bugwood.org
Crown Gall and Cane Gall in the Home Fruit Planting - Articles Articles
Crown and cane gall are bacterial diseases that seriously limit raspberry production in Pennsylvania. More
Rust Diseases of Apple in the Home Fruit Planting
Rust Diseases of Apple in the Home Fruit Planting - Articles Articles
Cedar-apple rust, hawthorn rust, and quince rust spend part of their life cycle on the eastern red cedar and are problems only when red cedar is found close to the orchard. More
Scab-resistant Apple Varieties for Home Orchards
Scab-resistant Apple Varieties for Home Orchards - Articles Articles
Scab-resistant apple varieties are ideal selections for home fruit production. More
Types of Weeds
Types of Weeds - Articles Articles
To adequately control weeds in the small-scale orchard, you should learn proper weed identification. More
M.G. Klein, USDA Agricultural Research Service, Bugwood.org
Home Orchards: Table 4.4. Disease, Insect, and Mites on Apples and Pears - Articles Articles
Occurrence of diseases, insects, and mites on apples and pears during the growing season. More
Gerald Holmes, California Polytechnic State University at San Luis Obispo, Bugwood.org
Home Orchards: Table 2.4. Plant Protection Materials - Articles Articles
Informational table showing pesticides available for home garden use on various fruit crops. More
Home Gardening: Mucor Rot
Home Gardening: Mucor Rot - Articles Articles
Mucor rot is a fungal disease of apples and pears. More
Home Orchard: Table 2.3. Pesticide Application Amounts Home Orchard: Table 2.3. Pesticide Application Amounts - Articles
Informational table showing pesticide application amounts on fruit. More
Be sure to protect your fruit from rots: bitter rot on Red Delicious. (Photo credit: K. Peter)
Managing Pre- and Postharvest Rots - Articles Articles
A big disease concern is keeping fruit free of rots as they are nearing the home stretch of the season. More
Left: Rosy apple aphid and damage. Right: White apple leafhopper and damage.
Integrating Neonicotinoid Insecticides Into Apple IPM - Articles Articles

Integrating Neonicotinoid Insecticides Into Apple IPM

Dave Biddinger, Ph.D., Grzegorz (Greg) Krawczyk, Ph.D., Ed Rajotte, Ph.D.

Our job in integrated pest management (IPM) is to make sure that if a pesticide is to be used, its benefits outweigh the undesirable side effects. More
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