Thrips

Thrips are slender, tiny insects that often have fringed wings and are generally 1 mm or less in size. Nymphs are elongate, lack wings and range in color from off-white

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Aphids

Aphids are soft, pear-shaped insects that have long legs and antennae with tube-like structures called “cornicles” that protrude out of the hind end of the body. This family of insects

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Invasive Shot Hole Borer

Invasive Shot Hole Borer (ISHB) is an exotic ambrosia beetle that was first detected in 2003 in Southern California. It is currently found in L.A., Orange, San Bernardino, western Riverside,

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Asian Longhorned Beetle

The Asian Longhorned beetle is an invasive, wood boring insect introduced to the U.S. via packing materials. ALB is a member of the Cerambycid family. The adults are large, black

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Conifer Spider Mites

Spider mites infest a variety of conifer species, including pines, spruce, hemlocks, arborvitaes and others. The mites pierce and suck nutrients from conifer needles.   Because spider mites are so

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Red Gum Lerp Psyllid

The red gum lerp psyllid (RGLP) (Glycaspis brimblecombei) is a foliar pest on red gum eucalyptus trees (Eucalyptus camaldulensis).   Like Eucalyptus trees, the RGLP is native to Australia. RGLP

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Hemlock Woolly Adelgid

The Hemlock Woolly Adelgid (HWA) is a tiny, piercing and sucking insect, unseen with the naked eye, that feeds on hemlock twigs at the bases of the needles. HWA is

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Leaf Chewing Caterpillar

Caterpillars belong to the insect order Lepidoptera. Caterpillars are the larval stage of moths and are among the most serious defoliators of trees.   One example is the eastern tent
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