This section is from the book "The Standard Cyclopedia Of Horticulture Vol2", by L. H. Bailey. See also: Western Garden Book: More than 8,000 Plants - The Right Plants for Your Climate - Tips from Western Garden Experts.
Small caterpillars in curious bag-like shelters defoliating the trees in early summer.
Arsenate of lead, two pounds to one hundred gallons of water.
Snow-white, circular scales with yellow central exuviae.
Small flesh-colored caterpillar that webs the leaves together.
Catalogue of Insects, continued.
A small reddish brown caterpillar mining the leaves when young. In September it constructs a case and feeds on the surrounding leaves for a time, migrates to the branches and there hibernates.
Spray with lime-sulfur before the buds open to destroy the hibernating caterpillars.
Grayish green larvae with black heads feeding on the foliage.
Spray with arsenicals.
Dirty yellowish maggots, 4/5 inch long, feeding on the roots, often in great abundance.
A plant-louse on forced lettuce.
Tobacco-dust applied on the soil and plants as soon as the aphis makes its appearance, or even before. Renew every two or three weeks if necessary. Fumigating with tobacco is the surest remedy.
Pyrethrum diluted with not more than three times its bulk with flour; kerosene emulsion; hot water.
Small dull-whitish lice, about one-tenth inch in length, feeding on the roots.