Studies in Control of the Weed Merremia gangetica (Linn) Cuf. |
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| Authors: | P S Dubey L P Mall |
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| Institution: | 1. School of Studies in Botany , Vikram University , Ujjain , Madhya Pradesh , India;2. Botany Department , University of Jodhpur , Jodhpur , Rajasthan , India;3. School of Studies in Botany , Vikram University , Ujjain , Madhya Pradesh , India |
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| Abstract: | Abstract Two field experiments were conducted in Cairo to determine if outdoor u.l.v. bioresmethrin would control a heavy housefly infestation. In the first trial, a 100 ha site surrounding a slaughterhouse was treated on five successive mornings with 10 g/ha of bioresmethrin in 470 ml of diesel oil. The mean daily outdoor reduction in the adult fly population, principally Musca domestica vicina Macquart, at 0900 h following application of the u.l.v. aerosol was 96%. In the second trial, the same procedure was adhered to and the site was treated on 14 successive mornings at the same dosage level using the same equipment in order to interrupt the life cycle. A mean daily density reduction of about 99% was obtained. This represents a reduction from 1,147 flies per grill count to only three. After the last consecutive treatment the fly population failed to rise appreciably and subsequently, two further treatments were carried out at weekly interva's. |
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