Management of Major Arthropod Pests of Summer Okra
| dc.contributor.advisor | MAHLA, M.K | |
| dc.contributor.author | JALGAONKAR, VINAYAK N. | |
| dc.date.accessioned | 2019-07-15T06:20:49Z | |
| dc.date.available | 2019-07-15T06:20:49Z | |
| dc.date.issued | 2019 | |
| dc.description | Management of Major Arthropod Pests of Summer Okra | en_US |
| dc.description.abstract | Investigation on “Management of Major Arthropod Pests of Summer Okra" was conducted during summer 2016 and 2017 at RARS, Karjat, Dr. BSKKV Dapoli District Ratnagiri, Maharashtra. Among nine genotypes/ varieties of okra, none of the cultivars was found to be free from pest infestation in the both year. The highest jassids population was found in variety Parbhani Kranti (21.68 jassids); whereas, variety Arka Anamika showed less jassids population (14.54). The highest aphids population was found in variety Varsha Upahar (16.88 aphids); whereas, variety Punjab Padmini showed less aphids population (12.79). The maximum whitefly population was found in variety Varsha Uphar (7.72 whitefly); whereas, variety Akola Bahar showed minimum whitefly population (4.77). The minimum shoot damage was recorded on variety Akola Bahar (14.87 per cent), whereas the maximum damage was recorded on Punjab Padmini (25.68 per cent). The per cent fruit damage revealed that the infestated fruit damage ranged from 26.12 to 33.08 per cent on different genotypes/ varieties. The variety Akola Bahar recorded less damage (26.12 per cent) to fruits as compared to rest of the other varieties. Okra crop was cultivated at 3 different sowing dates in year 2016 and 2017 during summer season (3rd week of January, 1st week of February and 3rd week of February).Considering the average data of two years, the incidence of jassids was recorded maximum population 22.74 jassids/ 3 leaves in 10th week after sowing in late sowing whereas it was recorded minimum in regular sowing i.e. 1.06 jassids/ 3 leaves in 4th week after sowing. In case of aphids the maximum population was recorded 19.78 aphids/ 3 leaves in 11th week after sowing in late sown crop. Regarding the whiteflies the maximum population was recorded 12.73 whitefly/3 leaves 11th week after sowing in late sown crop. In case of shoot and fruit borer the maximum shoot and fruit borer infestation was recorded 33.70 per cent in 9th week after sowing in late sown crop. * Ph.D. Scholar, Department of Entomology, RCA, MPUAT, Udaipur (Raj.) ** Head., Department of Entomology, RCA, MPUAT, Udaipur (Raj.) Regarding the population dynamics of the major arthopods, the maximum jassids, aphids whitefly population and shoot and fruit borer damage was recorded on fourth week of April (25.16 jassids / 3 leaves, 25.16 aphids / 3 leaves, 9.96 whitefly / 3 leaves and 22.46 per cent shoot and fruit borer damage, respectively). Regarding correlation coefficient study between pest population and weather parameters indicated that RHE and BSS showed highly significant negative correlation, whereas, MaxT (0.753), showed significant positive correlation, with Shoot and fruit infestation. Regarding the efficacy of some insecticide and biopestiside against major arthropods all the treatments were significantly superior over control. Treatment T3 (1st spray Thiamethoxam 25% WG and 2nd spray Thiodicarb 75% WP was found effective treatment for management of aphids, jassids and whitefly whereas Treatment T5 (Spiromesifen 22.9% SC 1st spray and 2nd spray Thiodicarb 75% WP and 3rd .spray Emamectin Benzoate 5% SG) was found effective for management of shoot and fruit borer infestation (weight as well as number basis).The maximum yield was also recorded in Treatment T5. | en_US |
| dc.identifier.citation | Jalgaonkar, V.N. and Mahla, M.K. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810114433 | |
| dc.keywords | Management Major Arthropod Pests, Summer Okra | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 148 | en_US |
| dc.publisher | MPUAT, Udaipur | en_US |
| dc.research.problem | Management of Major Arthropod Pests of Summer Okra | en_US |
| dc.sub | Entomology | en_US |
| dc.subject | null | en_US |
| dc.theme | Management of Major Arthropod Pests of Summer Okra | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | Management of Major Arthropod Pests of Summer Okra | en_US |
| dc.type | Thesis | en_US |