Vyas, H. N.Patel, Suresh N.2018-06-042018-06-041990http://krishikosh.egranth.ac.in/handle/1/5810049005Investigations were carried out on biology, population dynamics, screening, and control aspects of Trialeurodes ricini Misra on GAUCH-1 at Sardarkrushinagar during 1986 to 1989. The egg of T. ricini was sub-elliptical in shape, smooth, shiny and pale yellow in colour which measured 0.218 +_ 0.029 and 0.093 +_ 0.013 mm in length and breadth, respectively. White fly preferred to lay eggs on top leaf of a plant and maximum egg laying observed was 345.1 +_ 183.5 eggs/sq.cm of leaf during peak periods of white' fly infestation. In captive conditions, female of T. ricini on an average laid 95.80 +_ 20.33, 83.28 ± 28.64 and 38.76 ± 10.06 eggs during March, June and January at an average temperature of 26.29 +_ 9.65, 34.97 +_ 6.74 and 15.90 ± 9.47°C coupled with 31.8, 47.46 and 51.66 per cent relative humidity, respectively.enAGRICULTURAL ENTOMOLOGY, AGRICULTUREMANAGEMENTThesis