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Pine (Pinus)-Powdery pine needle aphid Eulachnus rileyi See: Common Pests of Nursery Crops Pest description and crop damage Powdery gray aphid, active all season, causes early needle drop. See "Pine" in: Christmas Tree Plantation Pests Managemen ...

Pine (Pinus)-Sequoia pitch moth Synanthedon sequoiae Pest description and crop damage Larvae of a clearwing moth feed in tree limbs and trunks. Trees under attack are almost always previously stressed. A mass of pinkish pitch at the feeding site is eviden ...

Pine (Pinus)-Spider mite Oligonychus spp. See: Common Pests of Nursery Crops See "Pine" in: Christmas Tree Plantation Pests Pine (Pinus) Spider mite ...

Pine (Pinus)-White pine weevil Pissodes strobi Pest description and crop damage Adults are about 0.25 inch long and light to dark brown with a prominent curved back. They kill terminal shoots and deform the tree. See "Pine" in: Christmas Tree Pl ...

Plum, flowering (Prunus)-Hop aphid Phorodon humuli See: Common Pests of Nursery Crops Pest description and crop damage Soft-body, bluish green insect found on the underside of leaves or in rolled leaves. Heavy infestations cause severe defoliation. Manage ...

Plum, flowering (Prunus)-Leaf curl plum aphid Anuraphis helichryse See: Common Pests of Nursery Crops Pest description and crop damage Causes extreme leaf curling. Management- biological control See: Biological Control of Nursery Pests Management-chemical ...

Plum, flowering (Prunus)-Peachtree borer Synanthedon exitiosa See: Apricot, flowering (Prunus)-Peachtree borer Plum, flowering (Prunus) Peachtree borer ...

Plum, flowering (Prunus)-Pear sawfly Caliroa cerasi See: Cherry, flowering (Prunus)-Pear sawfly Plum, flowering (Prunus) Pear sawfly ...

Plum, flowering (Prunus)-Scale Various species See: Common Pests of Nursery Crops Plum, flowering (Prunus) Scale ...

Poplar (Populus)-Carpenterworm Prionoxystus robinae Pest description and crop damage Large white larva (1 to 3 inches) bores 0.5-inch-diameter holes in trunk and main branches and eventually kills trees. Adult moth is speckled gray. Three-year life cycle. ...