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Bharpoda, T. M.
- Impact of Plant Spacing and Nitrogenous Fertilizer on Incidence of Sucking Pests in Bt Cotton
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Authors
Affiliations
1 Department of Entomology, B.A. College of Agriculture, Anand Agricultural University, ANAND (GUJARAT), IN
1 Department of Entomology, B.A. College of Agriculture, Anand Agricultural University, ANAND (GUJARAT), IN
Source
International Journal of Plant Protection, Vol 8, No 1 (2015), Pagination: 34-40Abstract
Field experiment was conducted to study the impact of plant spacing and nitrogenous fertilizer on incidence of sucking pests in Bt cotton at College Agronomy farm, B.A. College of Agriculture, Anand Agricultural University, Anand during Kharif, 2010-11. The Bt cotton raised at wider spacing 150×60cm recorded lower activity of major sucking pests viz., aphid, leafhopper and whitefly. Application of 360 kg N/ha, higher dose, enhanced the activity of sucking pests. The lower incidence of sucking pests was noticed with the application of lower dose @ 180 kg N /ha. Bt cotton grown at the widest spacing (150×60 cm) with the higher fertilizer dose (360 N kg/ha) recorded significantly higher (1996 kg/ha) seed cotton yield. The sucking pest population declined with increased spacing and with decreased fertilizer level and vis-a-vis.Keywords
Bt Cotton, Plant Spacing, Nitrogenous Fertilizer, Sucking Pests.
- Bio-Efficacy of Indoxacarb 15 EC against Pod Borer, Helicoverpa armigera (Hubner) Hardwick Infesting Pigeonpea
Abstract Views :212 |
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Authors
Affiliations
1 Sheth M.C. Polytechnic in Agriculture, Anand Agricultural University, ANAND (GUJARAT), IN
2 Department of Entomology, B.A. College of Agriculture, Anand Agricultural University, ANAND (GUJARAT), IN
1 Sheth M.C. Polytechnic in Agriculture, Anand Agricultural University, ANAND (GUJARAT), IN
2 Department of Entomology, B.A. College of Agriculture, Anand Agricultural University, ANAND (GUJARAT), IN
Source
International Journal of Plant Protection, Vol 8, No 1 (2015), Pagination: 65-68Abstract
Emulsifiable concentrate of indoxacarb (KN 128 15 EC) was evaluated at different doses for its field bio-efficacy in comparison with endosulfan 0.07 per cent (conventional insecticide) against Helicoverpa armigera (Hubner) hardwick on pigeonpea during 2003-04 and 2004-05. Different doses of indoxacarb 15 EC (KN 128) found to be more or less dose related. However, the indoxacarb 15 EC@ 50 g.a.i/ha was most effective for the control of pod borer followed by 60 g.a.i/ha. These doses also recorded significant higher grain yield during both the year (1753 and 1652 kg/ha), respectively.Keywords
Pigeonpea, Bio-Efficacy, Grain Yield, H. Armigera.- Efficacy of Various Seed Protectants against Callosobruchus chinensis (L.) on Cowpea (Vigna unguiculata L.) under Storage Condition
Abstract Views :221 |
PDF Views:0
Authors
Affiliations
1 Department of Entomology, B. A. College of Agriculture, Anand Agricultural University, Anand (Gujarat), IN
1 Department of Entomology, B. A. College of Agriculture, Anand Agricultural University, Anand (Gujarat), IN
Source
International Journal of Plant Protection, Vol 10, No 2 (2017), Pagination: 303-310Abstract
Investigations were carried out at Department of Entomology, B. A. College Agriculture, Anand Agricultural University, Anand, Gujarat (India) during 2011-12 for the evaluation of plant oils, botanical leaf powders as well as synthetic insecticides as seed protectants against Callosobruchus chinensis Linnaeus on stored cowpea. Cowpea seeds treated with castor, Neem and pongam oil @ 1% (v/w) recorded significantly higher adult mortality (≥57%) of C. chinensis during storage period of 6 months with higher half-life values (about 2.5 months), higher gross persistency (4707 to 3597), lower population growth (3.87 to 5.36 adult emergence) and lower per cent loss in germination (19.45 to 22.36%). Among the various leaf powders; Neem, eucalyptus and Tulsi @ 2% recorded higher per cent adult mortality (> 43%), higher half-life (about 3 months) and higher gross persistence (>2909) values, lower number of adult emergence (< 2.67) and higher germination count (≥70%) and were found to be more effective. Among synthetic insecticides; deltamethrin 2.8 EC, cypermethrin 10 EC, spinosad 45 SC and fenvalerate 20 EC @ 4 ppm were significantly more effective against C. chinensis and recorded significantly higher mortality (> 71%) with higher half-life values (3 to 8 months), higher persistency (≥ 5121) and lower number of adult emergence (≤ 2.63). The same insecticides also exhibited lower per cent loss (10.16 to 18.66%) in germination of cowpea seeds.Keywords
Plant Oils, Botanical Leaf Powders, Insecticides, Seed Protectants, Cowpea, Callosobruchus chinensis Linnaeus.References
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