Cotton thrips
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The knowledge about incidence of pest during cropping season and its possible dynamics helps in designing pest management strategies hence present study on population dynamics of cotton thrips was undertaken during Kharif seasons of 2014 and 2015 to fulfil objectives.
7p quenchua8 29-09-2020 8 1 Download
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Eco-friendly IPM module for the management of major sucking pests of cotton was demonstrated in the farmer‟s field. Eco-friendly IPM module has significantly reduced the sucking pests population. The leafhoppers population was low (1.5 number / 3 leaves) in the demo plots and it was high (4.2 numbers/ 3 leaves) in the check plots. Similarly the aphids, thrips, whitefly and mealy bug population were low in the demo plots when compared to the check plots.
6p caygaocaolon7 18-09-2020 9 0 Download
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The objective of the present study was to study various biological parameters of T. tabaci under different constant temperature conditions.
8p cothumenhmong7 09-09-2020 8 1 Download
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To assess the efficacy of different insecticides for the management of cotton Thrips, an experiment was conducted at Regional Agricultural Research Station, Lam, Guntur during 2011-12.
8p caygaocaolon6 30-07-2020 12 2 Download
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With a view to evaluate bio-efficacy of different botanicals against thrips, Scirtothrips dorsalis in Bt cotton, an experiment was conducted under field condition at Anand Agricultural University, Anand during Kharif 2017-18.
11p trinhthamhodang5 16-05-2020 13 1 Download
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With a view to evaluate bio-efficacy of different ready-mix insecticidesagainst thrips, Scirtothrips dorsalis in Bt cotton, an experiment was conducted under field condition at Anand Agricultural University, Anand during Kharif 2017-18.
12p trinhthamhodang5 16-05-2020 11 1 Download
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A field experiment was conducted to evaluate the efficacy of insecticides and bio pesticides against sucking insect pests on Bt cotton at College of Agriculture, Vijayapur during kharif-2016-17. The results revealed that the treatment flonicamid 50 WG was observed as significantly superior insecticide in minimizing the thrips population followed by fipronil 5 SC, acetamiprid 20 SP, dinotefuron 20 SG, diafenthiuron 50 WP and thiamethoxam 25 WG.
12p chauchaungayxua5 08-05-2020 13 0 Download
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The study on “Incidence of sucking pests and natural enemies in cotton under high density planting system (HDPS)” was conducted at RARS, Lam, Guntur during kharif, 2016-17 to observe the incidence of sucking pests such as leafhoppers, aphids, thrips and whitefly and also the incidence of natural enemies (Spiders and Coccinellids). Among the sucking pests thrips population was found dominating other sucking pests during initial days of crop growth period i.e., up to 90 DAS there after aphid population was dominated i.e., from 90- 135 DAS both in normal and HDPS.
8p kequaidan4 05-05-2020 11 1 Download
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In order to study the effects of repeated use of various insecticides on thrips and their natural enemies viz., Ladybird beetle and Predatory spiders, an experiment was conducted during Kharif, 2018-19at the Experimental farm, Department of Agricultural Entomology, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani. The insecticides selected included those used commonly among the farmers viz., Imidacloprid 17.
13p cothumenhmong3 22-02-2020 17 0 Download
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Succession of insect pest complex and their natural enemies in pigeonpea [Cajanus Cajan (L) Millsp.]
An experiment was conducted during kharif season 2015-2016 at experimental field, Department of Entomology, Live Stock Farm, Adhartal, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (M.P.), to observe the “Succession of Insect Pest Complex and Their Natural Enemies in Pigeonpea [Cajanus Cajan (L) Millsp.]”. Result revealed that 17 species of insects (13 pest and 4 natural enemies) were observed in pigeonpea i.e. Jassids Empoasca fabae Harris, Cow bug Otinotus oneratus W., Pod bug Clavigralla gibbosa Spinola, Riptortus sp.
10p trinhthamhodang3 12-02-2020 13 0 Download
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A field experiment was conducted in farmer’s field at Jodalli village (Kalghatgi taluk) in 2012-13 and at Pale village (Hubballi taluk) in 2013-14 under protective irrigation to study the effect of graded levels of NPK fertilizers on pests incidence of Bt cotton. The interaction of graded levels of NPK did not show significant effect on pests population (thrips, jassids, aphids, shoot weevil, mirid bug and midge) during first and second years of experimentation and also in pooled data.
15p chauchaungayxua3 07-02-2020 10 0 Download
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The two year experiments were conducted under field and in the laboratory with fifteen cotton cultivars as treatments replicated thrice. Observation on major sucking pest viz., aphid, leafhopper, whitefly and thrips were recorded on five plants and biochemical constituent viz., crude protein, total phenols and total soluble sugar were estimated from the leaves of cotton cultivars collected at 45 and 60 days after emergence. The biochemical were estimated by standard methods and correlated with sucking pests.
12p nguaconbaynhay3 07-02-2020 10 1 Download
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The experiment was carried out during kharif 2014 at College of Agriculture, Indore under All India Coordinated Cotton Improvement Project in Randomized Block Design (RBD) with eight treatments and three replications on Bt cotton hybrid NCS 927, sown on 27th July with 0.6x0.6 m spacing. The recommended agronomical practices were adopted properly. Each treatment was prepared for alternate use of two insecticides during six sprays. The spraying was done at 10 days interval with 500 litre water per hectare, sprayed by knapsack sprayer fitted with a duromist nozzle.
8p cothumenhmong1 10-12-2019 9 1 Download
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The present in vitro studies on bio-efficacy of granular, oil based and wettable powder formulations on various sucking pests were carried out at Entomology laboratory, Institute of Organic Farming (IOF), University of Agricultural Sciences, Dharwad. Among different formulations evaluated viz., rice bran oil (60 %) + corn oil (40%) formulation found least LC50 value against corn aphids (0.182 x106 cfu / ml), grape vine mealy bug (0.560 x 106 cfu / ml), cotton thrips (0.591 x 106 cfu / ml), and guava whitefly (0.942 x 106 cfu / ml). The olive oil formulation recorded least LC50 value 0.
10p cothumenhmong1 08-12-2019 9 0 Download