. Vegetable growing projects. Vegetable gardening; Project method in teaching. COLE CROP PROJECTS 105 surface of the leaf, and from these hatch small, green caterpillars that immediately begin skeletonizing the leaf. In ten to fourteen. Fig. 30. — Cabbage worm. days they become full grown and fasten themselves to the under side of the leaf or other protected surface and change to a pupa from which in about a week the butterfly emerges. Several broods develop in a season. This pest is controlled by hand picking or dusting when only a few plants are grown. Poison sprays applied as soon as young
. Vegetable growing projects. Vegetable gardening; Project method in teaching. COLE CROP PROJECTS 105 surface of the leaf, and from these hatch small, green caterpillars that immediately begin skeletonizing the leaf. In ten to fourteen. Fig. 30. — Cabbage worm. days they become full grown and fasten themselves to the under side of the leaf or other protected surface and change to a pupa from which in about a week the butterfly emerges. Several broods develop in a season. This pest is controlled by hand picking or dusting when only a few plants are grown. Poison sprays applied as soon as young caterpillars appear are the best for large plantings. 1. What indicates maggot injury to cabbage f CL: 29-36. 2. What is the life history of the maggot? CL: 29-30. 3. Is clean farming a desirable practice? If so, why? CL:32. 4. State briefly three methods of preventing injury by the maggot, indicating when each is mast desirable. CL: 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 Watts, Ralph Levi, 1869-. New York, Macmillan
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectvegetablegardening
