Bioecology of Sorghum Shoot Fly Atherigona soccata Rondani (Diptera : Muscidae) and its Management in Rajasthan
Loading...
Date
2003
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
MPUAT, Udaipur
Abstract
Investigation on “Bio-Ecology of Sorghum Shoot Fly Atherigona Soccata, Rondani and It’s Management in Rajasthan” was carried out at Instructional Farm, Rajasthan College of Agriculture, Udaipur during two consecutive Kharif seasons.
Monitoring of adult shoot fly Shoot fly Atherigona Soccata, Rondani was done through fish meal trap. The highest number of flies captured during first week of August with a mean population of 37.50 per trap. The increase in shoot fly population showed positive correlation with both mean temperature and rain fall while it showed negative correlation with the mean relative humidity.
The studies on the biology of shoot fly in laboratory as well as in field conditions have shown that pupal period was 7.44 days in field condition and 7.0 days in laboratory condition. While, the adult longevity was 11.44 days in laboratory and 10.89 days under field condition. However, the other life stages viz., incubation and larval period were almost similar i.e. 1.77 and 9.77 day under both the conditions.
The quantitative survey on the incidence of shoot fly infestation was carried out in Southwest Rajasthan on CSV 10 and CSH 5. Two years data revealed that CSV 10 has exhibited lowest incidence of shoot fly with a mean dead hearts of 35.04, 32.58; 27.73, 27.11; 26.04, 21.93 and 18.31, 20.23; 18.28, 20.28; 20.58, 27.36 per cent dead heart during two years at Udaipur and Banswara, respectively. While, the incidence of shoot fly was more in CSH 5 with a mean dead heart of 37.96, 34.52; 31.24, 29.88; 27.40,32.88 and 28.34, 22.35; 31.99, 25.75; 29.82, 27.34 per cent dead heart during two years at Udaipur and Banswara, respectively.
The shoot fly Atherigona soccata Rondani Caused 31.31 and 29.77 per cent losses in grain yield during two years respectively which is equivalent to a grain loss of 20.00 and 18.90 q/ha during two years, respectively.
Among the different varieties and hybrids evaluated the variety CSV 10 exhibited the lowest dead hearts with a mean of 15.82 and 15.52 per cent which was at par to the resistant check SPV 462 during both the years at 28 DAS.
The management schedule comprising of sowing of the crop at higher seed rate (12 hg/ha), soil application of carbofuran 3G @ 3.0 g per meter row length and neem oil spray (3 %) at 14th day after germination was found the best which gave the highest grain yield of 48.33 and 48.49 q/ha with a highest cost benefit ratio of 1 : 1.77 and 1 : 1.80 during two years respectively.
Description
Bioecology of Sorghum Shoot Fly
Atherigona soccata Rondani (Diptera : Muscidae)
and its Management in Rajasthan
Keywords
null
Citation
Hussain and Ameta, 2003