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Pawar, U. A.
- Studies on Succession of Insect Pest Complex and their Natural Enemies in Pigeonpea [cajanus Cajan (l.) Millsp.]
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Authors
Affiliations
1 Department of Agricultural Entomology, K.k. Wagh College of Agriculture, Nashik (m.s.), IN
2 Department of Agricultural Entomology, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (m.p.), IN
1 Department of Agricultural Entomology, K.k. Wagh College of Agriculture, Nashik (m.s.), IN
2 Department of Agricultural Entomology, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (m.p.), IN
Source
International Journal of Plant Protection, Vol 7, No 2 (2014), Pagination: 318-324Abstract
A field experiment was conducted at experimental field of Department of Entomology, Live Stock Farm, Adhartal, J.N. Krishi Vishwa Vidyalaya, Jabalpur (M.P.) during Kharif season 2009-2010. Thirteen different species of insects and one insectivorus bird species were recorded on the pigeonpea at Jabalpur during 2009-2010. Data collected reveled that fauna belonging to seven orders and fourteen families were associated with the pigeonpea crop. The first group of insects included jassid, leaf webber, tussock caterpillar and red pumpkin beetle which appeared when the crop age was about 39 days old i.e. during vegetative stage and remained available upto the reproductive stage. The next group of insects to appear on the crop were jassid, thrips, blister beetle, pod bug, gram pod borer, pod fly, green stink bug and red gram plume moth. These appeared when the crop age was about 102 days old i.e. at the reproductive stage and remained available upto the maturity of the crop. These pests were the major key pests which caused colossal yield losses. The natural enemies observed were lady bird beetle and a parasitic wasp Cotessia(= Apanteles)sp. which remained active from vegetative to reproductive stage of the crop. An insectivorous bird, black drongo was also observed to feed on different stages of insect pests infesting pigeonpea during the entire crop growth period.Keywords
Pigeonpea, Key Pest, Predator, Insectivorous Bird
- Insect Pest Complex of Chilli, Capsicum annum L. and their Natural Enemies in Jabalpur
Abstract Views :877 |
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Authors
Affiliations
1 Department of Plant Protection, Institute of Agricultural Sciences, Palli Siksha Bhavana, Visva Bharti, Bolpur, Birbhum (W.B.), IN
2 Department of Agricultural Entomology, K.K. Wagh College of Agriculture, Panchavati, NASHIK (M.S.), IN
3 Department of Agricultural Entomology, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (M.P.), IN
1 Department of Plant Protection, Institute of Agricultural Sciences, Palli Siksha Bhavana, Visva Bharti, Bolpur, Birbhum (W.B.), IN
2 Department of Agricultural Entomology, K.K. Wagh College of Agriculture, Panchavati, NASHIK (M.S.), IN
3 Department of Agricultural Entomology, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (M.P.), IN
Source
International Journal of Plant Protection, Vol 8, No 2 (2015), Pagination: 270-278Abstract
A field experiment was conducted at experimental field of the Department of Horticulture, Maharajpur, J.N. Krishi Vishwa Vidyalaya, Jabalpur (M.P.) during winter season of 2009-10. In chilli, six species of insect pests and two species of cocinellid predator and one braconid parasitoid of aphid were enumerated. At first sucking pests like whitefly, thrips, aphid and jassid were appeared at 7 days after transplanting and remained active till onset of reproductive stage. The Lepidopteron borers viz., Helicoverpa armigera and Spodoptera litura tobacco caterpillar and gram pod borer appeared were the next group of insects appear on the crop during reproductive stage and remained there till the crop matures. All these are the key pests of chilli in the region which caused colossal yield losses. The natural enemies observed were two species of lady bird beetle and a parasitoid of aphid. Parasitoid of aphid was observed when the crop was about 63 and 84 days old, respectively i.e. the reproductive stage it is evident that the natural enemies was present on the aphids when which remained active up to the third week of March i.e. aphids population were disappeared in the reproductive stage of the crop.Keywords
Chilli, Key Pest, Predator, Parasitoid, Canopy Level.References
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