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Beneficial Insects
NY State IPM — Many insects in apple orchards benefit growers by feeding on pest species. It is important that growers be able to recognize these beneficial insects so that they are not mistaken for pests. This fact sheet reviews the major beneficial insects ...More…
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European Apple Sawfly
NY State IPM — The European apple sawfly is an introduced pest that was first noted in North America infesting crabapples on Long Island (Farmingdale, N.Y.) and Vancouver Island (Victoria, B.C.) during 1939 and 1940, respectively. Since then it has spread into ...More…
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White Apple Leafhopper
NY State IPM — The white apple leafhopper (WALH) is native to and widely distributed throughout the apple growing regions of North America. The WALH has 2 generations a year and overwinters in the egg stage. A number of other leafhoppers can be found on apple ...More…
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European Red Mite
NY State IPM — The European red mite (ERM) is a European species introduced to North America in the early 1900's. It rapidly extended its range, and is now established in most deciduous fruit growing areas. It is the most important mite species attacking tree ...More…
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Apple-Boring Beetles
NY State IPM — Roundheaded Appletree Borer, Saperda candida Fabricius (Coleoptera: Cerambycidae) Flatheaded Appletree Borer, Chrysobothris femorata (Olivier) (Coleoptera: Buprestidae) Broad Necked Root Borer, Prionus laticollis (Drury) (Coleoptera: ...More…
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Apple Maggot
NY State IPM — AM normally has a single generation a year, although there are two exceptions: AM may have a partial second generation in the southern part of its range, and some individuals remain in the soil two winters before emerging as adults. The first AM ...More…
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Rosy Apple Aphid
NY State IPM — The rosy apple aphid (RAA) can be found throughout the apple growing regions of North America. In the spring, the aphids feed on apple leaves and fruits, and in the summer move to alternate hosts, such as narrow-leaved plantain. The RAA will ...More…
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Fire Blight
NY State IPM — Fire blight is one of the most destructive diseases of apple and pear trees. Outbreaks are sporadic in most parts of the Northeast, but can cause extensive tree damage when they do occur. Therefore, the necessary intensity of control programs ...More…
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Codling Moth
NY State IPM — The codling moth (CM) is a pest introduced from Eurasia. The larvae feed on the fruit of a wide range of host plants including apple, pear, quince, hawthorn, crabapple, and walnut. CM completes 1.5-3.5 generations annually, depending on locality ...More…
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Perennial Canker
NY State IPM — Perennial canker (also called Valsa canker, Cytospora canker, Leucostoma canker, and peach canker) is one of the most common and debilitating diseases of peach trees in the Northeast. It also occurs regularly on sweet cherry, apricot, and plum ...More…
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Apple Scab
NY State IPM — Wayne F. Wilcox Department of Plant Pathology, NYS Agricultural Experiment Station, Cornell University Apple scab is the most economically destructive disease of apples in the world. In the Northeast it is usually not possible to produce apples ...More…
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Comstock Mealybug
NY State IPM — The Comstock mealybug (CMB) was first reported in the United States in 1918 concurrently in New York and California, and has since spread to all coastal states and the Ohio and Mississippi River valleys. Its fruit hosts include pear, apple, and ...More…