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Bhut, J. B.
- Effectiveness of Different Insecticides against Sucking Pests in Brinjal
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Authors
Affiliations
1 Main Vegetable Research Station, Anand Agricultural University, Anand (guijarat), IN
1 Main Vegetable Research Station, Anand Agricultural University, Anand (guijarat), IN
Source
International Journal of Plant Protection, Vol 7, No 2 (2014), Pagination: 339-344Abstract
An experiment was conducted to study the bio-efficacy of nine different insecticides (triazophos 0.08 %, imidacloprid 0.002 %, profenophos 0.05 %, diafenthiuron 0.05 %, clothianidin 0.025 %, cartap hydrochloride 0.05 %, thiamethoxam 0.025 %, thiacloprid 0.012 % and spiromesifen 0.024 %) again sucking pests viz., jassid and whitefly in brinjal (GBH 1) at Main Vegetable Research Station, Anand Agricultural University, Anand during Rabi season of 2011-12. Among different insecticides evaluated, thiamethoxam, diafenthiuron and thiacloprid emerged as most effective; profenophos, clothianidin and imidacloprid were mediocre; while cartap hydrochloride, spiromesifen and triazophos were found least effective against jassid. So far whitefly is concerned, spiromesifen, diafenthiuron and triazophos emerged as most effective; imidacloprid, profenophos and cartap hydrochloride as mediocre, while clothianidin, thiamethoxam and thiacloprid emerged as least effective. Diafenthiuron exhibited significantly higher brinjal fruit yield (350.57 q/ha), whereas triazophos and cartap hydrochloride hosted significantly lower fruit yield. The minimum and maximum per cent avoidable losses were recorded in diafenthiuron (0.00) and control (55.25), respectively. The highest Net ICBR (71.83) was obtained from the plots treated with profenophos followed by thiacloprid (56.10), cartap hydrochloride (43.93), imidacloprid (39.10) and diafenthiuron (27.69).Keywords
Effectiveness, Insecticides, Sucking Pests, Avoidable Losses- Population Dynamics of Aphis gossypii Glover on Coriander in Relation to Biotic and Abiotic Factors
Abstract Views :216 |
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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 2 (2015), Pagination: 372-374Abstract
Field experiment was conducted on population dynamics of Aphis gossypii Glover on coriander (Gujarat coriander 2) in relation to biotic and abiotic factors during winter season of 2011-12 and 2012-13. Incidence of aphid on coriander started from 3rd week of December (51st SMW) and continued till 1st week of March (10th SMW) with a peak level during 5th week of January (5th SMW). Minimum and mean temperature had highly significant negative association with aphid incidence during first year, whereas nonsignificant negative correlation with the pest activity during second year. The morning vapour pressure had significant negative relationship with A. gossypii during first year and non-significant negative association during second year. Remaining all the tested meteorological parameters showed non-significant relationship with aphid population on coriander crop during both the years. The biotic factors, viz., coccinellids and syrphids as well as their cumulative numbers showed highly significant positive correlation with aphid population during both the years.Keywords
Aphis gossypii, Population Dynamics, Biotic-Abiotic Factors, Coriander.References
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- Dabhi, M. V. (2008). Succession, population dynamics and management of major insect pests of okra [Abelmoschus esculentus (L.) Moench]. M.Sc. (Ag.) Thesis, Anand Agricultural University, Anand, GUJARAT (INDIA).
- Devi, M. N., Singh, T. K. and Devi, C. (2002). Field density of Aphis gossypii in relation to predatory and biotic factors. Uttar Pradesh J. Zool., 22 (1): 67-71.
- Ghetiya, L.V. (1992). Bionomics, population dynamics and chemical control of aphid (Aphis gossypii Glover) on coriander. M. Sc. (Ag.) Thesis, Gujarat Agricultural Universiyt, Junagadh, GUJARAT (INDIA).
- Singh, N. N. and Rai, V. N. (1994). Effect of abiotic factors on the development of aphid (Lipaphis erysimi Kalt Bach.) population. Indian J. Ent., 56 (1): 99-103.
- Slosser, J.E., Pinchak, W.E. and Rummel, D.R. (1998).Biotic and abiotic regulation of Aphis gossypii Glover in West Texas dryland cotton. South-west Entomologist, 23 (1): 31-65.
- Bio-Efficacy of Bio-Pesticides against Jassid, Empoasca kerri, Pruthi Infesting Groundnut
Abstract Views :152 |
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Authors
Affiliations
1 Department of Entomology, College of Agriculture, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Main Oilseed Research Station, Junagadh Agricultural University, Junagadh (Gujarat), IN
1 Department of Entomology, College of Agriculture, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Main Oilseed Research Station, Junagadh Agricultural University, Junagadh (Gujarat), IN