. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. io8 FARM FRIENDS AND FARM FOES ll. Moth ARMY-WORM the day hides beneath the grass from the rays of the sweltering sun. This larva grows rapidly in size. At the end of a week it molts or casts its skin, a process in which the old skin splits open along the back, and the worm crawls out clothed in a new skin that has developed be- neath the old one. Again it feeds as before, its vo- racity increasing with its size. This molting is re- peated four or five times during the mon
. Farm friends and farm foes : a text-book of agricultural science . Agricultural pests; Beneficial insects; Insect pests. io8 FARM FRIENDS AND FARM FOES ll. Moth ARMY-WORM the day hides beneath the grass from the rays of the sweltering sun. This larva grows rapidly in size. At the end of a week it molts or casts its skin, a process in which the old skin splits open along the back, and the worm crawls out clothed in a new skin that has developed be- neath the old one. Again it feeds as before, its vo- racity increasing with its size. This molting is re- peated four or five times during the month after the eggs hatch, so that by the end of this period, the insect' is one and a half inches long, and has the brown markings of the full-grown Army Worm. The instinct of the caterpillar now teaches it to seek more secure shelter for the helpless stage, upon which it is about to enter. It burrows into the soil an inch or less and wriggles about in the earth until it pro- duces a hollow cell. In this it casts its skin again and becomes a pupa — the third stage of its existence. When LARVA PUpA. 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
