Chari, M. S.SHERSIYA, R. A.2018-07-062018-07-061982http://krishikosh.egranth.ac.in/handle/1/5810057836The bioeffficacy of cyfloxylate was tested during 1980-81 and 1981-82 against insect pests of Hybrid-4 cotton with special reference to bollworms viz., Earias spp. And Halipthis armigera (Hb.). The treatments tried under first experiment were, cyfloxylate (@ 20 g a,I./ha), cyfloxylate (@ 25 g a.I./ha), triflumuron (195 g a.i./ha), cyfloxylate + triflumuron (12.5 g + 130 g a.i./ha), methamidophos (1000 g a.i./ha), methamidophos + triflumuron (670 g + 130 g a.i./ha), cypermethrin (80 g a.i./ha), fevalerate (100 g a.i./ha), endosulfan (700 g a.i./ha) and control (water spary only). The sprayings were carried out at an interval of 15 days.enAGRICULTURAL ENTOMOLOGY, AGRICULTUREA STUDYThesis