. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. HEMIPTERA: THE TRUE BUGS 95 Bark Lice or Scale Insects 1. Look on apple twigs for the characteristic scales of the Oyster- shell Scale. Pry up a scale and look on the under side with a lens. In the fell, winter, or early spring you are likely to find many eggs. 2. Examine various fruit trees, especially peaches, plums, and pears, for the San Jose Scale. If found, learn whether the trees have been sprayed to destroy them. In autumn the scales are likely to be found upon the
. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. HEMIPTERA: THE TRUE BUGS 95 Bark Lice or Scale Insects 1. Look on apple twigs for the characteristic scales of the Oyster- shell Scale. Pry up a scale and look on the under side with a lens. In the fell, winter, or early spring you are likely to find many eggs. 2. Examine various fruit trees, especially peaches, plums, and pears, for the San Jose Scale. If found, learn whether the trees have been sprayed to destroy them. In autumn the scales are likely to be found upon the fruits. 3. Examine other trees and shrubs for other scale insects. In order to learn their names, send such as you find to the Bureau of Entomology, U. S. Department of Agri- culture, Washington, , with a letter telling on what plant )'ou found them. Aphides or Plant Lice 1. You generally can find these insects with very little trouble. Look on the leaves of apple or other fruit trees, or on willows or other trees. Look also on the leaves of \ flowers and vegetables. Do all the different kinds of aphides you find look alike? 2. In fall and winter look on the bark of the willow branches and about the buds of apple trees to find the winter eggs of the aphides. Examine them through a lens and make a sketch for your insect booklet. 3. Many aphides live in gall-like modifications of the leaves. Make sketches of such of these as you can find. 4. Read one or more of these references: — American Insects, pages 171-176. Life Histories of American Insects, pages Cicada emerging from Nymph Skin. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Weed, Clarence Moores, 1864-1947. Boston ; New York : D. C. Heath & Co.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbenefic, bookyear1910
