Evaluation of integrated pest management module for pink bollworm, Pectinophora gossypiella (Saunders) and its economic analysis under farmer's field conditions
Cotton is an important cash crop in many developing countries, supporting the livelihoods of millions of poor people. Crop productivity has increased globally since the introduction of Bt cotton. Despite the Bt cotton area expanding year after year, most farmers are not getting guaranteed yields due...
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| Published in: | International journal of pest management Vol. ahead-of-print; no. ahead-of-print; pp. 1 - 9 |
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| Main Authors: | , , , , , , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Taylor & Francis
29-06-2022
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | Cotton is an important cash crop in many developing countries, supporting the livelihoods of millions of poor people. Crop productivity has increased globally since the introduction of Bt cotton. Despite the Bt cotton area expanding year after year, most farmers are not getting guaranteed yields due to the high incidence of Pink bollworm (PBW). The Integrated Pest Management tactics including, the use of pheromone traps, manual destruction of rosette flowers, the application of biopesticides (Azadirachtin 1500 ppm) and synthetic insecticide (Thiodicarb 75% WP) were evaluated against cotton PBW farmer's field conditions in Southern Telangana Zone of Telangana state, India during 2018-19, 2019-20, and 2020-21. The observations on incidence and percentage of reduction of PBW, extension gap, technology gap and technology index, were worked out in farmer's field and demonstration field. During three growing seasons, the mean PBW infestation of cotton crops ranged between 38.3 ± 5.87, 40 ± 8.34, and 40.4 ± 3.80, respectively. In the present study, the activity of PBW adults were started at initial square formation to flowering stage (i.e. 55-60 days after sowing) and more number of adults was trapped post boll picking during all the observed years. During the studied years, the mean pest population reduction due to azadirachtin and thiodicarb application ranged from 30.37 to 43.71 and 35.14 to 53.78%, respectively. The benefit-cost ratio analysis shows that the adoption of IPM practices gives more benefit per rupee invested, i.e. 1.35, 2.07, and 1.51, compared to farmer's practice 1.11, 1.71, and 1.36, respectively during 2018-19, 2019-20, and 2020-21. Similarly, the technology gap, extension gap, and technology index in the demonstration field ranged from 2 to 13.09, 1.02 to 3.9, and 6.67 to 43.63%, respectively. The lower technological index (6.67) in the study area indicates the greater technological feasibility under farmer field conditions. |
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| ISSN: | 0967-0874 1366-5863 |
| DOI: | 10.1080/09670874.2022.2096269 |