Wilde , G. and Morgan, J. (1978) Chinch bug on sorghum: chemical control, economic injury levels, plant resistance. Journal of Economic Entomology, 71 (6). 908-910 .
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Abstract
In field tests in Kansas in 1977, foliar sprays of parathion, carbaryl, carbofuran and methyl-parathion (Penncap M) applied at rates of 0.84, 1.68, 0.56 and 0.84 kg a.i./ha, respectively, significantly reduced numbers of Blissus leucopterus leucopterus (Say) on sorghum. Soil application of phorate or carbofuran granules at 1.12 kg a.i./ha successfully controlled the lygaeid in pot tests in the laboratory but were not very effective in the field. An infestation level of 30 adults/plant resulted in the death of plants 75-125 mm high in 6-7 days and lower levels resulted in death or severe stunting, depending on plant size. More than 1700 bugs/plant at the bloom stage significantly reduced yield. The line Early Sumac was significantly more resistant to the bug than was Honey, Redlan or Spanish Broomcorn, which were almost equally susceptible
| Item Type: | Article |
|---|---|
| Author Affiliation: | Department of Entomology, Kansas State University, Manhattan, KS 66506, USA |
| Subjects: | Plant Protection |
| Divisions: | Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 30 Mar 2012 09:20 |
| Last Modified: | 30 Mar 2012 09:20 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/4407 |
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