Roth, J.P. and Pitre, H.N. (1975) Seasonal Incidence and Host Plant Relationships of the Sorghum Midge in Mississippi. Annals of the Entomological Society of America, 68 (4). pp. 654-658.
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Abstract
Emergence of adult Cotarinia sorghicola (Coquillett) from overwintering sites began in early April in 1972, peaked in mid-May when johnsongrass was in full bloom, and ended by the 3rd wk in June in northern Mississippi. Wheat planted in sorghum stubble provided protection for overwintering midge. Tillage practices did not affect adult emergence from overwintering sites. Relatively small numbers emerged from johnsongrass head residue. The distance adults dispersed from overwintering sites to johnsongrass was dependent on the availability of this host. Midge emergence from johnsongrass peaked in mid-July when volunteer and early planted sorghum were in bloom, dropped sharply by late July, and remained low until the 2nd wk in October after which no emergence was recorded. There were 9 to 11 generations on johnsongrass and 11 to 14 generations on sorghum plantings in the area. Sorghum in bloom before August was damaged only slightly, while sorghum blooming in August and September was damaged extensively
| Item Type: | Article |
|---|---|
| Author Affiliation: | Department of Entomology, Mississippi Agricultural and Forestry Experiment station, Mississippi State University, Mississippi State, MS 39762 |
| Subjects: | Plant Protection |
| Divisions: | Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 30 Jul 2012 03:39 |
| Last Modified: | 30 Jul 2012 03:41 |
| Official URL: | http://esa.publisher.ingentaconnect.com/content/es... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/7036 |
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