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Agricultural Science Digest, volume 30 issue 4 (december 2010) :

BIOLOGY OF SOYBEAN JASSID, EMPOASCA KERRI (PRUTHI)

V.K. Sutaria, M.N. Motka, D.M. Jethva, D.R. Ramoliya, R.T. Rathod

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¹Department of Entomology, College of Agriculture Junagadh Agricultural University, Junagadh - 362 001, India.

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Cite article:- Sutaria V.K., Motka M.N., Jethva D.M., Ramoliya D.R., Rathod R.T. (2024). BIOLOGY OF SOYBEAN JASSID, EMPOASCA KERRI (PRUTHI). Agricultural Science Digest. 30(4): . doi: .

ABSTRACT

A laboratory experiment was conducted to study the biology of soybean jassid during August to October, 2008. The average room temperature during the study was 25.50 ± 2.90, while relative humidity was 67.80 ± 8.45. The life-span comprising of egg period of 5.96 ± 1.13 days, nymphal period of 14.12 ± 1.78 days with 5 instars, adult period of 9.52 ± 0.58 days in male and 11.4 ± 0.86 days in female with pre-oviposition period of 3.44 ± 0.71 days, oviposition period of 4.16 ± 0.8 days and post-oviposition period of 3.16 ± 0.89 days. Thus, the entire life span completed in an average of 27.84 ± 3.07 in male, while, 31.32 ± 3.62 days in female. The average egg laying capacity was 16.28 ± 2.65 eggs per female. The sex ratio of male:female was 1:1.18 under laboratory conditions

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