DEVELOPMENT OF INTEGRATED PEST MANAGEMENT STRATEGIES AGAINST MAJOR INSECT PESTS OF SUNFLOWER (Hetianthus annuusUHW.)
| dc.contributor.advisor | D. RAJAGOPAL | |
| dc.contributor.author | D.RAJANNA | |
| dc.date.accessioned | 2019-06-13T10:31:03Z | |
| dc.date.available | 2019-06-13T10:31:03Z | |
| dc.date.issued | 2008-09-19 | |
| dc.description.abstract | Investigations on the development of Integrated Pest Management strategies against major insect pests of sunflower were undertaken during 1996 to 1998 and 2001 to 2005 at Zonal Agricultural Research Station (ZARS), University of Agricultural Sciences, GKVK, Bangalore and ZARS, Vishveswaraiah Canal Farm, Mandya, respectively. Among the Integrated Pest Management (IPM) components evaluated under field conditions, one border row of castor along with sunflower recorded significantly lower population of Spodoptera titura. The application of Bacillus thuringiensis var kurtsaki @ 1.0 kg/ha at 35,50 and 65 DAS in comparison with endosulfan 35 EC indicated significant reduction in larval population of Thysanoplusia orichalcea. Similarly, the Combination of SI NPV @ 250 LE/ha + B.t.k. @ 1.0 kg/ha applied at 50 and 65 DAS was found to be highly effective in suppression of S. litura and Helicoverpa armigera. Similarly the combination of Ha NPV @ 250 LE/ha + B.t.k. @ 1.0 kg/ha + release of Chrysoperia carnea @ 20,000/ha was proved to be superior over endosulfan 35 EC in reducing H. armigera and T. orichalcea. Among the conventional insecticides evaluated, methomyl 12.5 L spray @ 187 g. a.i./ha recorded significantly lower damage with higher yield followed by endosulfan 35 EC @ 525 g.a.i./ha, monocrotophos 36 EC and NSKE 5 per cent. Among the newer insecticides tested, seed treatment with imidacloprid 70 WS recorded significantly lower population of leafhopper {Amrasca biguttula biguttula) and thrips {Thrips palmi) up to 30 days of sowing. Further it was also proved to be effective in reducing sunflower necrosis disease (SND). Subsequently, spinosad 45 SC @ 75 g.a.i./ha and indoxacarb 14.5 SC @ 75 g.a.i./ha spray were proved to be effective in reducing larval populations of S. litura, H. armigera and T. orichalcea. Of the Three IPM modules developed and evaluated in comparison with the Recommended Package of Practices (RPP) for plant protection against major insect pests of sunflower, bio-intensive module (Seed treatment with imidacloprid 70 WS at 5 g/kg seeds; NSKE 5%; spinosad 45 SC; Ha NPV; B.tk.) and adaptive module (one border row castor as trap crop; seed treatment with imidacloprid 70 WS; NSKE 5%; indoxacarb14.5 SC]B.t..k.] spinosad 45 SC) were proved to be superior in reducing pest population with higher net returns than the RPP. With regards to the economics of different modules evaluated, the maximum net profit was realized from the adaptiy^joq^ule followed by bio- Intensive module compared to Recommended Package of Practices. | en_US |
| dc.identifier.other | TH-9205 | |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810108389 | |
| dc.language.iso | en | en_US |
| dc.pages | 280 | en_US |
| dc.publisher | University of Agricultural Sciences GKVK, Banglore | en_US |
| dc.sub | Agricultural Entomology | en_US |
| dc.subject | null | en_US |
| dc.theme | DEVELOPMENT OF INTEGRATED PEST MANAGEMENT STRATEGIES AGAINST MAJOR INSECT PESTS OF SUNFLOWER (Hetianthus annuusUHW.) | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | DEVELOPMENT OF INTEGRATED PEST MANAGEMENT STRATEGIES AGAINST MAJOR INSECT PESTS OF SUNFLOWER (Hetianthus annuusUHW.) | en_US |
| dc.type | Thesis | en_US |