EVALUATION OF VARIOUS INSECTICIDES AGAINST PEST COMPLEX OF BHENDI (Abelmoschus esculentus L.) AND BRINJAL (Solanum melongena L.)
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Date
1989
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Publisher
AAU, Anand
Abstract
The study carried out to determine the efficacy of various insecticides agiainat pest complex of bhendi and brinjal during different season indicated the effective control of aphid Aphis gossypii G. within 24hrs , on kharif bhendi by application of mixture of endosulfan 2% dust + methyl parathion 2% dust @ 15 +15 kg/ha. Whereas, application of endosulfan 2% dust @ 15 kg/ha, endosulfan 2% dust + quinalphos 1.5 % dust @ 15 + 15 kg/ha, indiara 1 % spray and neemark 0.5% spray effectively checkeck the multiplication of jassid, Amrasca biguttula biguttula I . population on kharif bhendi till one week after application. The jassid infestation on summer bhendi was controlled by spray application of acephate 0.075 % and 5 % neem seed kernel paste suspension till two weeks after application. The infestation of Earias vittella F. in the shoot of kharif bheadi was effectively controlled by dusting of endosulfan 2 % dust quinalphos 1.5 % dust mixture @ 15+15 kg/ha. The spray application of 5 % neem seed kernel paste suspension and acephate 0.075 % were found very effective on summer bhendi in neducing the shoot damage caused by E.vittella . The fruit damage in Kharif bhendi was reduced by dust application of endoaulfan 2 % dust @ 15 kg/ha and a mixture of endosulfan 2 % dust + quinalphos 1.5% dust @ 15+15 kg/ha as well as spray application of 5 % neem seed kernel paste suspension, Aphidophagous lady bird beetle, Menochilus sexmaculatua had least toxic effect of spray application of 5 % neem seed kernel paste suspension on Kharif bhendi, No parasite activity was found in treated as well as untreated kharif bhendi. The bhendi varieties Parbhani Kranti, Selection-2 and Gujarat Okra-1 cultivated during summer were less infested with jassid, A. biguttula biguttula till 11 weeks after sowing. No need of insecticidal application was realized in bhendi variety Selection-2 for the control of jassid. Whereas, maximum protection was obtained with insecticidal application in Gujarat Okra-l. Padra 18-6 had significant susceptibility to mite, Tetranychus telarius as con5)ared to other varieties which were found equally susceptible.
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Keywords
AGRICULTURAL ENTOMOLOGY, AGRICULTURE, EVALUATION