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Elm (Ulmus)-European elm scale Gossyparia spuria 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 scales, the ...

Elm (Ulmus)-Fall webworm Hyphantria cunea Pest description and damage These gregarious caterpillars spin web-like tents in branch tips of deciduous trees including apple, cherry, peach, pecan, English walnut, black walnut, ash, boxelder, birch, chokecherr ...

Elm (Ulmus)-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 scales, the ...

Elm (Ulmus)-Spiny elm caterpillar (mourning cloak butterfly) Nymphalis antiopa Pest description and damage The spiny elm caterpillar is the larval stage of the mourning cloak butterfly. The adult butterfly is approximately 2.5 inches across, with purplish ...

Euonymus (Euonymus)-Cottony camellia scale Pulvinaria floccifera 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 t ...

Euonymus (Euonymus)-Euonymus scale Unaspis euonymi 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 scales, t ...

Euonymus (Euonymus)-Root weevil Numerous species Pest description and damage Identification is important as different species differ in susceptibility to pesticides. Adult weevils are dark colored, nocturnal beetles, from 0.2 to 0.25 inch in length, with ...

Fir (Abies)-Balsam twig aphid Mindarus abietinus Pest description and damage Balsam twig aphids feed on needles and buds of firs. Three distinct forms of the balsam twig aphid occur. Aphids may be (1) small (0.06 to 0.07 inch in length) and yellow green, ...

Fir (Abies)-Balsam woolly adelgid Adelges piceae Pest description and damage The balsam woolly adelgid is about 0.04 inch in length, feeds on the stems of true firs. White or grayish cottonlike masses of eggs or newly hatched purplish-black insects are fo ...

Fir (Abies)-Coneworm Dioryctria spp. Pest description and damage Adult coneworms are mottled gray or brown snout moths banded with subtle waves of color and about 0.6 to 0.7 inch in length. The coneworm larvae are small and cream-colored or light brown wi ...