Types of Garden Enemies
TWO-SPOTTED MITE (Tetranychus bimaculatus).
This is the common red spider found around the world on vegetables-beans, tomato, egg- plant, onions, celery, melons-on almost all greenhouse and house plants and a special menace to ivy, and always a threat to outdoor roses, phlox, sweet peas, violets, primroses, hollyhocks, and other flowers. The adult is 1/60 inch long, pale yellow or green more often than red, with 2 dark spots. It spins webs wherever it goes and gives underside of leaves a rather mealy appearance while taking color from upper surface by its sucking. Rose leaves turn gray or yellow, or have reddish margins, or brown burned areas; they lose vigor and drop. Some polyantha varieties are nearly defoliated by midsummer. Phlox leaves are usually yellow, primroses often dry up. Mites increase rapidly in warm humid weather, and plants with little air circulation are most severely infested.

Control. Drenching with water helps-a weekly bath for ivies and other house plants, and occasional syringing with the hose to break webs on garden plants. Malathon, safer phosphate than parathion or TEPP, is now available for garden use, but I have had excellent results with Aramite, adding i tablespoon to each gallon of my regular three-in-one rose spray. Ovotran is also good and is included in several combination in sprays and dusts currently available.

Moths belong to the insect order Lepidoptera. They have scaly wings like butterflies but a heavier body; they do not hold their wings vertically, and they are usually night fliers. In the larval stage they are caterpillars, and some have been discussed under that heading.

ABUTILON MOTH (Anomis erosa) also called okra caterpillar. This is a light-green semi-looper, nearly 11/2 inches long, feeding on okra, hollyhock, hibiscus, and mallow. It can be readily controlled with lead arsenate.

BROWN-TAIL MOTH (Nygmia phaeorrhoea).
A New England pest of apple, cherry, oak, pear, plum, rose, and willow, sometimes on other ornamentals but not on evergreens. Caterpillars are reddish brown with a broken stripe along the side, red tubercles near the rear, and are covered with tufts of poisonous brown hairs which cause a rash if they touch the skin. Many young larvae winter together in a single nest made of webbed leaves at the end of a twig, feed in spring, and pupate in June in a cocoon in webbed leaves. Moths, pure white except for a brown tip to the abdomen, appear in July to lay eggs on foliage. Young larvae feed on terminal leaves in late August.

Control. Cut off and burn winter webs; spray trees with lead arsenate or DDT when leaves come out in spring and again in August as larvae hatch. Infested areas are under quarantine.

      (c)2005, common-garden-pests.com