Controlling the garden web-worm in alfalfa fields / E.O.G. Kelly and T.S. Wilson.
The garden webworm, known as an enemy of truck crops, has become in recent years a serious alfalfa pest. In some cases second and third cuttings of the crop have been entirely destroyed. The insect has caused injury in the central western States, and there have been several serious outbreaks in Kans...
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of Agriculture,
1918.
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| Series: | Farmers' bulletin (United States. Department of Agriculture) ;
no. 944. |
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| Summary: | The garden webworm, known as an enemy of truck crops, has become in recent years a serious alfalfa pest. In some cases second and third cuttings of the crop have been entirely destroyed. The insect has caused injury in the central western States, and there have been several serious outbreaks in Kansas and Oklahoma. The worm or larva stage of the webworm is responsible for the injury to alfalfa. Properly timed cuttings of the crop will deprive these lave of their main food supply and expose them to heat and predatory enemies, thus destroying many of them and helping to decrease further damage. Since the larva feed on several kinds of weeds, clean cultural methods and weed destruction are necessary in ridding alfalfa fields of the past."--Page [2] |
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| Item Description: | Cover title. "Contribution from the Bureau of Entomology." |
| Physical Description: | 7 pages : illustrations ; 23 cm. |