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Cherry, flowering (Prunus)-Oblique-banded leafroller Choristoneura rosaceana Pest description and damage The oblique-banded leafroller larvae roll and tie leaves together for shelter and feeding. The newly hatched larva first mines the leaves, then rolls, ...
Cherry, flowering (Prunus)-Pear sawfly (pear slug) California pear sawfly (Pristiphora abbreviata) Pear slug (Caliroa cerasi) Pest description and damage Pear slug is a European insect now found in most areas of the U.S. It attacks both pear and cherry an ...

Cherry, flowering (Prunus)-Western red-humped caterpillar Oedemasia salicis Pest description and damage The western redhumped caterpillar is the larva of a 1.0-inch, gray-brown moth. The mature larvae can be up to 1.25 inches in length and are yellow with ...

Cherry, flowering (Prunus)-Rose leafhopper Includes Edwardsiana rosae Pest description and damage Rose leafhoppers are small (0.14 to 0.16 inch in length), active, whitish-green insects which hop when disturbed. The nymphs (immatures) are white with red e ...

Cherry, flowering (Prunus)-San Jose scale Quadraspidiotus perniciosus Pest description and damage Scale insects are small (less than 0.125 inch in length) soft insects that live beneath waxy scales. These insects are often identified by the shape and size ...

Cherry, flowering (Prunus)-Shothole borer Scolytus rugulosus Pest description and damage The adult shothole borer is a brownish-black beetle about 0.08 inch in length. The larvae are white, legless, and about 0.16 inch long. When the numerous beetles emer ...

Cherry, flowering (Prunus)-Spider mite European red mite (Panonychus ulmi) Twospotted spider mite (Tetranychus urticae) Pest description and damage Several species of spider mites can cause damage to flowering cherries. Appearance of these mites varies wi ...

Cherry, flowering (Prunus)-Tent caterpillar Forest tent caterpillar (Malacosoma disstria) Western tent caterpillar (Malacosoma californica) Pest description and damage The western tent caterpillar attacks a wide variety of plants including alder, ash, bir ...
Chestnut (Castanea)-European shothole borer Anisandrus (Xyleborus) dispar Pest description and damage Shothole borers are small bark beetles that often attack weakened branches. Anisandrus dispar is the primary shothole borer infesting chestnut in the PNW ...
Cotoneaster (Cotoneaster)-Aphid Includes Apple aphid (Aphis pomi) Potato aphid (Macrosiphum euphorbiae) Pest description and damage Several species of aphids may feed on the foliage, stem, and flower clusters. Aphids tend to be small (0.0625 to 0.125 inch ...