Studies on Bio-efficacy of Botanicals and Bio-pesticides against yellow stem borer, Scirpophaga incertulas (Walker) in Basmati Rice
| dc.contributor.advisor | Dr. D.V. Singh | |
| dc.contributor.author | Mohd Salman | |
| dc.date.accessioned | 2024-10-07T11:04:58Z | |
| dc.date.available | 2024-10-07T11:04:58Z | |
| dc.date.issued | 2023 | |
| dc.description.abstract | Name: Mohd Salman ID No. : PG/A-3805/21 Degree: M.Sc. (Ag.) Entomology Major: Entomology Advisor: Dr. D. V. Singh Minor: Plant Pathology Thesis Title: “Studies on Bio-efficacy of Botanicals and Bio-pesticides against yellow stem borer, Scirpophaga incertulas (Walker) in Basmati Rice”. ABSTRACT The present investigation entitled as “Studies on Bio-efficacy of Botanicals and Bio-pesticides against Yellow stem borer, Scirpophaga incertulas (Walker) in Basmati Rice” was conducted during Kharif, 2022 at the Crop Research Centre (CRC), Chirodi Farm of S.V.P. University of Agriculture & Technology, Meerut, U.P., India. Studies on the incidence of rice stem borer showed that the per cent dead hearts were observed highest during 36th standard week as (8.00 %) during vegetative growth phase and per cent white ears were highest during 42th standard week as (6.48%) during reproductive growth phase of the crop. The correlation matrix indicated that there was a non-significant positive correlation with maximum temperature (r=0.1801), evening relative humidity (0.4120) and non-significant negative correlation with minimum temperature (r=-0.00183), morning relative humidity (r=-0.2193) and rainfall (r=-0.0454). Efficacy of different treatments viz, Cartap hydrochlorides 4% GR, Neem oil 3%, NSKE 5%, Beauveria bassiana 2×108 spores/ml, Bacillus thuringiensis (Bt), garlic extract 1% were found statistically superior over control in reducing the stem borer infestation and increasing the yield. The most effective treatment in reducing the stem borer infestation were Cartap hydrochloride 4%GR @ 20 kg/ha followed by Neem oil 3% @ 2.5 L/ha and NSKE 5% @ 25 kg/ha. Among biopesticides, Beauveria bassiana 2x108 @ 1.25 L/ha was found to be superior than Bacillus thuringiensis (Bt) @ 1.5 kg/ha whereas among all the pesticidal treatments, garlic extract 1% @ 5 L/ha was found to be least effective. The highest grain yield (45.40 q/ha) was obtained from Cartap hydrochloride 4% GR @ 20 kg/ha whereas higher cost benefit ratio (1:8.75) was also obtained from Cartap hydrochloride 4% GR @ 20 kg/ha, among all the treatments The lowest yield (38.10 q/ha) was obtained from garlic extract 1% @ 5lit/ha with lowest cost benefit ratio was also calculated from garlic extract 1% @ 5lit/ha with (1:2.90). Among all the treatments, Cartap hydrochloride 4% Gr @ 20 kg/ha, and Neem oil 3% were found to be more effective as compared to other treatments for the control of S. incertulas, yellow stem borer. (D.V. Singh) (Mohd Salman) Advisor Author | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810215482 | |
| dc.language.iso | English | |
| dc.pages | 74 | |
| dc.publisher | SARDAR VALLABHBHAI PATEL UNIVERSITY OF AGRICULTURE & TECHNOLOGY, MEERUT - 250 110 (U.P.), INDIA | |
| dc.sub | Entomology | |
| dc.theme | “Studies on Bio-efficacy of Botanicals and Bio-pesticides against yellow stem borer, Scirpophaga incertulas (Walker) in Basmati Rice”. | |
| dc.these.type | M.Sc | |
| dc.title | Studies on Bio-efficacy of Botanicals and Bio-pesticides against yellow stem borer, Scirpophaga incertulas (Walker) in Basmati Rice | |
| dc.type | Thesis |