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Monitoring and population dynamics of tur pod bug, Clavigralla gibbosa in unprotected pigeonpea crop during kharif seasons from 2011 to 2014 at the Farmers field of Jurdcial area of S.D. Agricultural University, S.K. Nagar, North Gujarat, India. Temperature, rainfall and host-plant species were analyzed with respect to population fluctuation of the tur pod bug. The observations revealed that, the average number of larval population per plant in the season (from 27 th to 3 rd standard weeks) was 0.97, 0.32, 0.30 and 0.38 larvae per plant during 2011, 2012, 2013 and 2014 respectively. Population of C. gibbosa had significant and negative correlation with maximum temperature (r= -0.73), rainfall (r= -0.29) and relative humidity (r= -0.79, r= -0.58 morning and evening, respectively).

A seed treatment trial was conducted at research farm of Centre of Excellence for Research on Pulses, S. D. Agricultural University, Sardarkrushinagar. The experiment was conducted for the control of white fly by seed treatment, four insecticides were used for seed treatment with two different doses of each insecticides viz., Bifenthrin 10 EC, Imidacloprid 600FS,Thiomethoxam 35 FS and Fipronil 5%SC, these treatments were found significantly (at 5 %) superior over the control in reducing the white fly population in moth bean. The seed treatment with Thiomethoxam35 FS @5g/kg seeds found minimum white fly, Bemisia tabaci population (0.32 /leaf) followed by Imidacloprid 600FS @ 5 g/kg seeds (white fly 0.39/leaf) and maximum was recorded in control ( 1.06/leaf. Farmers are advised to use seed treatments with Thiomethoxam35 FS @5g/kg seeds or Imidacloprid 600FS @ 5 g/kg seeds before the sowing of moth bean crop for the control of white fly.

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