<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Behavioural studies of Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) and its management in chickpea"^^ . "The research activities entitled. \" Behrvioural studies of Helicoverpa armigera (Hubner)\r\n(Lepidoptera : Noctuidae) nnd its management in chickpea \",conducted during post-rainy\r\nseason, 1999.2000. at International Crops research Institute for the Semi-arid Tropics,\r\nPatanchem location, Andhra Pradesh, India, indicated that, by the pheromone trap catches of\r\nHarmigeru males, the peal\\ mo~h activity war found to he between 0200 and 0400h. The\r\nenvironmental factors temperature, humidity and wind velocity appear to have a marked effect\r\non the moth catch but were ~uerely coincidental with the time of the night. The research\r\nconducted on the orientation and flight pattern towards the pheromone source in l?larmigern\r\nsuggests that it consists of several distinct stages with deviation from a straight upwind path\r\ntaking place largely in the vertical plane, with different fight patterns.\r\nThe ovipositional prcfcrcnce of Harmigeru to flower color variation in pigeonpea have shown a\r\nremarkable preference towards yellow colored flowers (X3.3)to oviposit than to the red colored\r\nflowers (36) in the choice tests. Though the female laid less number of eggs (56.4) on the red\r\ncolor flowers than yellow (64) in no-cholce tests, the differences were not significantly different.\r\nAll the treatments that were tested against H urmigerir were found to be significantly superior to\r\nthe unspraycd plots. 111 managing die larval population of the pest. The effectiveness of various\r\ntreatments on H.urmigeru were in the order of Endosulfan (37 percent reduction over control)\r\nfollowed hy TPM (30), NPV (27). Annona (28). Neem (22) and erecting bird perches (21).\r\nEndosulfan registered the lest percentage pod damage (?US), followed by IPM (22.6) as against\r\nthe highest percentage pod damage in control (40.7) A nlaximum yield of 13.9 q ha \"was\r\nobtained with endosulfan, but was on par ~71thIP M (13.6 q ha .') as against 8.5 q ha'' in the\r\ncontrol plots IPM was adjudged as the most profitable way to manage the pest, with little inputs\r\non pesticides, which recorded a cost-benefit ratio of 1 :9 followed by endoslllfan treatment\r\n(l:8.7), The studies on the fluctuation of H armigcrcr pest population revealed that the larval population\r\nattained two major peaks, at 68 and 90 days of crop age, which coincided with peak flowering\r\nand podding stages of the crop respectively."^^ . "2000" . . . "Pondicherry University"^^ . . . "Department of Ecology and Environmental Sciences, Pondicherry University"^^ . . . . . . . . "L"^^ . "Srigiriraju"^^ . "L Srigiriraju"^^ . . . . . . "Behavioural studies of Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) and its management in chickpea (PDF)"^^ . . . . "HTML Summary of #308 \n\nBehavioural studies of Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) and its management in chickpea\n\n" . "text/html" . . . "Chickpea"@en . .