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Author: United States. Department of Agriculture Publisher: ISBN: Category : Agriculture Languages : en Pages : 618
Book Description
The bean crop of the Southwest suffers severe injury from the bean ladybird, which sometimes ruins entire crops. It is restricted to beans for food and attacks all kinds. Both beetles and their larvæ devour all parts of the plant -- leaves, flowers and pods -- but the chief injury is to the foliage. The pest can be controlled in small areas by hand-picking the overwintered beetles and by brushing the larvæ or young from the plants during hot, dry weather. On a larger scale it may be controlled by spraying with arsenite of zinc, arsenate of lead, or arsenate of lime. Clean cultivation should be practiced and early and late planting." -- [2]
Author: United States. Department of Agriculture Publisher: ISBN: Category : Agriculture Languages : en Pages : 618
Book Description
The bean crop of the Southwest suffers severe injury from the bean ladybird, which sometimes ruins entire crops. It is restricted to beans for food and attacks all kinds. Both beetles and their larvæ devour all parts of the plant -- leaves, flowers and pods -- but the chief injury is to the foliage. The pest can be controlled in small areas by hand-picking the overwintered beetles and by brushing the larvæ or young from the plants during hot, dry weather. On a larger scale it may be controlled by spraying with arsenite of zinc, arsenate of lead, or arsenate of lime. Clean cultivation should be practiced and early and late planting." -- [2]
Author: C. L. Marlatt Publisher: ISBN: Category : Agriculture Languages : en Pages : 22
Book Description
"The codling moth or apple worm and the apple scab have no direct relationship except that both attack the apple and are, respectively, the chief insect enemy and the chief fungous disease of this fruit. Both are, however, subject to practical control by sprays, which being necessary at the same dates, in the main, can be combined in single applications, and it is for this reason that they are considered together in this bulletin. A brief life history is given of the codling moth, with a description of the sprays and other remedies for it, followed by similar matter on the apple scab. The bulletin concludes with a joint consideration, for both pests, of spraying outfits and methods, with directions for the combination of the spray mixtures, and a spray calendar" -- introduction
Author: William Moore Scott Publisher: Wentworth Press ISBN: 9781011008490 Category : Languages : en Pages : 46
Book Description
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Author: United States. Bureau of Plant Industry, Soils, and Agricultural Engineering. Library Publisher: ISBN: Category : Plant diseases Languages : en Pages : 50
Author: United States. Department of Agriculture
Author: United States. Department of Agriculture
Author: William Moore Scott
Author: William Moore Scott
Author: C. L. Marlatt
Author: William Moore Scott
Author: New York (State). State Entomologist
Author: United States. Department of Agriculture. Division of Publications
Author: 
Author: 
Author: United States. Bureau of Plant Industry, Soils, and Agricultural Engineering. Library