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Pear, flowering (Pyrus)-Cherry bark tortrix Enarmonia formosana Pest description and damage Cherry bark tortrix is a pest of most woody ornamental trees and shrubs in the family Rosaceae. The larvae are 0.33 to 0.4 inch in length, pale gray to flesh-color ...

Pear, flowering (Pyrus)-Oystershell scale Lepidosaphes ulmi 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 of their ...

Pear, flowering (Pyrus)-Pearleaf blister mite Eriophyes (Phytoptus) pyri Pest description and damage Adults of the pearleaf blister mite are very tiny (about 0.009 inch in length) and can be seen only under magnification. These mites are light to amber ye ...

Pear, flowering (Pyrus)-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 and i ...

Pear, flowering (Pyrus)-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 of ...

Pear, flowering (Pyrus)-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, birch ...

Photinia (Photinia)-Aphid Includes melon aphid (Aphis gossypii) and others Pest description and damage Several species of aphids may feed on the foliar, stem, flower, bud, bark or root tissues of broadleaf trees, shrubs. Aphids tend to be small (0.0625 to ...

Photinia (Photinia)-Cherry bark tortrix Enarmonia formosana Pest description and damage Cherry bark tortrix is a pest of most woody ornamental trees and shrubs in the family Rosaceae. The mature larvae are 0.33 to 0.4 inch long, pale gray to flesh-color w ...

Photinia (Photinia)-Root weevil Numerous species Pest description and damage Species identification is important as root weevil species differ in susceptibility to pesticides and can have different life cycles. Adult weevils are dark colored, nocturnal be ...

Photinia (Photinia)-Scale insect Lecanium scale (Parentholecanium spp.) Oystershell scale (Lepidosaphes ulmi) San Jose scale (Quadraspidiotus perniciosus) Description, biology and management Scale insects are small (less than 0.125 inch in length) soft in ...