. Control of caterpillars on commercial cabbage and other cole crops in the South. Caterpillars Control Southern States. on the ground, where their color blends with that of the soil. Female moths lay grayish- white eggs near the buds of young host plants. As the plants approach maturity, the moths prefer to lay their eggs on the underside of a leaf in the angle along the leaf stems. The webworms are about one- half inch long when mature. They are dull grayish yellow, and marked with five conspicu- ous brownish-purple lengthwise stripes. Their heads are black and bear a V-shaped mark. When fir
. Control of caterpillars on commercial cabbage and other cole crops in the South. Caterpillars Control Southern States. on the ground, where their color blends with that of the soil. Female moths lay grayish- white eggs near the buds of young host plants. As the plants approach maturity, the moths prefer to lay their eggs on the underside of a leaf in the angle along the leaf stems. The webworms are about one- half inch long when mature. They are dull grayish yellow, and marked with five conspicu- ous brownish-purple lengthwise stripes. Their heads are black and bear a V-shaped mark. When first hatched, the cater- pillars feed on either side of the partly folded leaves of the plant bud. After a few days, the caterpillars begin to feed be- neath a protecting web made from silklike threads that they secrete. Sometimes the cater- pillars are found on the outer leaves or along the main ribs of leaves and along the main plant stalk in a leaf axil. They can be detected by the debris and the webs at the point of TC-7017 Figure 11. — Cabbage webworm feeding on the bud of a young cabbage plant. To show it, the web was removed and the leaves were partly 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 Reid, W. J. (William John), 1902-; Cuthbert, Frank P. , 1922-. Washington, D. C. : U. S. Dept. of Agriculture
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Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1900, bookpublisherwashingtondcusdeptofagriculture
