Observations on oviposition of sorghum shoot fly, Atherigona soccata Rond: (Diptera: Muscidae)

Davies, J C and Reddy, K V S (1981) Observations on oviposition of sorghum shoot fly, Atherigona soccata Rond: (Diptera: Muscidae). Monograph. ICRISAT, ICRISAT, Hyd.

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Observationson oviposition on sorghum plants by Atherigona Goccata Rand, at ICRISAT Center, near Hyderabad, India, confirmed its high rate of incidence particularly during postrainy season. Eggs were normally laid on the under surface of the fourth or fifth leaf, usually one egg per plant was laid. The number of eggs laid was highest per unit area at high plant densities--10 mm or less between plants. At these densities more plants were laid on, and this applied to both main plants and tillers. There was a very high correlation between the number of plants laid on and the number showing dead heart symptoms. Very few plants at low densities escaped attack. Soil type did not affect oviposition. It was concluded that, for maximizing shoot fly build-up for screening for resistance in sorghum, dense plant populations should be sown in the spreader rows, but for material under test spacings of 200 mm or more were optimal

Item Type: Monograph (Monograph)
Subjects: Mandate crops > Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 07 Dec 2012 07:14
Last Modified: 07 Feb 2014 05:49
URI: http://oar.icrisat.org/id/eprint/6282
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