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Now showing items 21-30 of 188

Spruce Needle Miner

Mayer, D. F.; Ophardt, Marianne; Antonelli, Arthur L. (Pullman, Washington : Washington State University. Extension., 1996-10)

This insect pest attacks blue, Engelmann, Norway, Sitka, and white spruce in Washington. Biology, description, and cultural control are discussed. 2 pages.

Protecting Backyard Apple Trees from Apple Maggots

Bush, Michael R. (Michael Robert), 1962-; Klaus, Michael; Antonelli, Arthur L.; Daniels, Catherine H., 1957- (Pullman, Washington : Washington State University. Extension., 2002-03)

Pockets of unsprayed "backyard" fruit trees have become a threat to the commercial apple industry in the Pacific Northwest. Many homeowner tree fruit sprays have been removed from the market. By using sticky traps, learning ...

European Pine Shoot Moth

Antonelli, Arthur L. (Pullman, Washington : Washington State University. Extension., 1995-09)

This pest of landscape, Christmas tree and nursery pine plantings deforms ornamental trees. Sex lure traps available to monitor for moths. 3 pages.

Spiders

Antonelli, Arthur L.; Akre, Roger D., 1937-; Catts, E. Paul (Pullman, Washington : Washington State University. Extension., 1997-09)

Spiders are beneficial arthropods, found indoors and out. In the Northwest, widow spiders and hobo or aggressive house spiders can cause painful bites. Color photos and descriptions of common varieties should ease your ...

Balsam Woolly Adelgid: A Pest of True Fir Species

Antonelli, Arthur L. (Pullman, Washington : Washington State University. Extension., 1992-02)

Though often wrongly labeled an aphid, the balsam woolly adelgid (Adelges piceae) is a member of another family of "sucking" insects. Since reproduction is parthenogenic, one female can spontaneously give rise to a whole ...

Garden Symphylan: Its Biology and Control

Shanks, Carl H.; Antonelli, Arthur L. (Pullman, Washington : Washington State University. Extension., 2002-04)

Those slithery, many legged critters in your garden or greenhouse may be symphylans not centipedes. Slender, white animals, symphylans have fewer legs. 2 pages.

Whiteflies: Their Biology and Control

Antonelli, Arthur L. (Pullman, Washington : Washington State University. Extension., 1997-08)

This nuisance pest plagues home gardeners and greenhouse growers. Whiteflies suck juices from plants, exude sticky honeydew, and stunt plant parts. 4 pages.

Pear Slug

Antonelli, Arthur L. (Pullman, Washington : Washington State University. Extension., 1989-09)

When is a slug not a slug? In this case when it's a shiny black sawfly. This insect, related to bees, ants, and wasps, favors pear and cherry, but attacks plum, hawthorn, quince, buttonbrush, and mountain ash. Bulletin ...

Apple Ermine Moth

Antonelli, Arthur L.; LaGasa, Eric H.; Bay, Ernest C. (Pullman, Washington : Washington State University. Extension., 1989-08)

A relative newcomer to the Pacific Northwest, the apple ermine moth (Yponomeuta malinellus) feeds exclusively on apple. It can defoliate a tree by June and damage long-term productivity. Bulletin explains biology, life ...

Odorous House Ant

Akre, Roger D., 1937-; Antonelli, Arthur L. (Pullman, Washington : Washington State University. Extension., 1991-11)

Explains the habitat of the odorous house ant Tapinoma sessile along with identification, biology, attracting foods, and control. 2 pages.

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