. Injurious insects : how to recognize and control them . Insect pests; Insect pests. Fil;. i2o. — Work ami lar\-a of the Pear-slug. Original. and if the slugs are mmicrous, tlie entire foliage of the tree may look scorched and drop off. When nearly full grown, the lar-^-te lose their slimy coating with the last molt, and are then a clear yel- low in color. There are two or tlu-ee gen- erations in a season. The slugs are apt to lie more nu- merous in the middle or latter part of sununer. The adult is a sawtly. Eggs are laid within the tissues of the leaf. Ordinarily the simplest means of contr
. Injurious insects : how to recognize and control them . Insect pests; Insect pests. Fil;. i2o. — Work ami lar\-a of the Pear-slug. Original. and if the slugs are mmicrous, tlie entire foliage of the tree may look scorched and drop off. When nearly full grown, the lar-^-te lose their slimy coating with the last molt, and are then a clear yel- low in color. There are two or tlu-ee gen- erations in a season. The slugs are apt to lie more nu- merous in the middle or latter part of sununer. The adult is a sawtly. Eggs are laid within the tissues of the leaf. Ordinarily the simplest means of control is to apply Paris green or arsenate of lead to the fohage. The slugs are easih- Fio. 426. —Adult of the Pear-slug. En- largtxi and natural size. Original, The Peach and Plum Slug (Caliroa aiiii/gilalina Rohwer) The work of this insect is similar to that of the common pear-slug. The species is found in the Gulf states. There are half a dozen or more generations each season, and injiu-y is most severe toward the end of summer. Spra>-ing with an arsenical poison is the readiest 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 O'Kane, Walter Collins, b. 1877. New York : The Macmillan Company
Size: 1912px × 1307px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1912
