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- Parasitoid Complex of the Groundnut Leafminer, Aproaerema modicella Deventer (Lepidoptera:Gelechiidae)
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Authors
Affiliations
1 Department of Agricultural Entomology, University of Agricultural Sciences, Raichur, Karnataka, IN
1 Department of Agricultural Entomology, University of Agricultural Sciences, Raichur, Karnataka, IN
Source
Journal of Biological Control, Vol 4, No 1 (1990), Pagination: 55-56Abstract
The groundnut leafminer, Aproaerema modicella Deventer, is a serious insect pest of groundnut in many South Asian and South-East Asian countries. In India, it has been reported in severe form on groundnut from Karnataka (Usman and Puttarudraiah, 1955), Andhra Pradesh (Krishnamurthy Rao et al., (1962), Maharashtra and Tamil Nadu (Rai, 1976). The Leafminer however is attacked by many species of parasitoids in nature.Keywords
Groundnut, Aproaerema modicella, Parasitoids.Full Text
- Bioassay of Insecticides against Okra Leafhopper Amrasca biguttula Biguttula (Ishida)
Abstract Views :219 |
PDF Views:0
Authors
Affiliations
1 Department of Agriculture Extension Education Centre, Bheemarayanagudi (Karnataka), IN
2 AICRP on Groundnut, Main Agricultural Research Station (U.A.S.), Raichur (Karnataka), IN
3 Department of Agricultural Entomology, University of Agricultural Sciences, Raichur (Karnataka), IN
1 Department of Agriculture Extension Education Centre, Bheemarayanagudi (Karnataka), IN
2 AICRP on Groundnut, Main Agricultural Research Station (U.A.S.), Raichur (Karnataka), IN
3 Department of Agricultural Entomology, University of Agricultural Sciences, Raichur (Karnataka), IN
Source
International Journal of Plant Protection, Vol 10, No 2 (2017), Pagination: 364-368Abstract
Okra [Abelmoschus esculentus L. (Moench)] also known as lady’s finger is an important vegetable crop valued for its immature, tender and green fruits in India.One of the major bottlenecks in successful production of okra is the damage caused by early season sucking pests and fruit borers. Among the sucking pests leafhoppers (Amrasca biguttula biguttula) is undoubtedly more severe and destructive on okra during early stage of the crop. At present, most of the commonly used insecticides are not able to suppress its population below economic thresholds probably because of development of resistance. Among the different insecticides tested for bioassay under laboratory conditions, thiamethoxam 25 WDG at 0.2 g per litre and flonicamid 50 WG at 0.3 g per litre showed the highest mortality and was followed by fipronil 5 SC at 1 ml per litre, dinotefuran 20 SG at 0.2 g per litre and acetamiprid 20 SP at 1 g per litre which proved to be superior over imidacloprid 17.8 SL at 0.3 ml per litre, diafenthiuron 50 WP at 1 g per litre, lamda-cyhalothrin 5 EC at 0.5 ml per litre, emamectin benzoate 5 SG at 0.2 g per litre, fenpyroximate 5 SC at 1ml per litre and acephate 75 SP at 1 g per litre.The concentration mortality response of nymphs to these chemicals under laboratory was evidenced through leaf dip bioassay and the LC50 values for these chemicals were computed. The LC50 value of thiamethoxam 25 WDG, flonicamid 50 WG, fipronil 5 SC, dinotefuran 20 SG and acetamiprid 20 SP were 4.03, 4.50, 16.18, 7.60 and 16.40 ppm respectively.The different insecticides which were promising through laboratory were field evaluated and the results revealed that thiamethoxam 25 WDG at 25 g a. i. per hectare was found to be effective against the leafhoppers followed by flonicamid 50 WG at 75 g a. i. per hectare, fipronil 5 SC at 25 g a. i. per hectare, dinotefuran 20 SG at 20 g a. i. per hectare and acetamiprid 20 SP at 20 g a. i. per hectare. Whereas, acephate 75 SP at 375 g a. i. per hectare was least effective against the leafhoppers.Keywords
A. biguttula Biguttula, Bioassay, Okra.
References
- Abbott, W. S. (1925).A method of computing the effectiveness of an insecticide. J. Econ. Ent., 18 : 265–267.
- Anitha, K.R. and Nandihalli, B. S. (2009).Bioefficacy of newer insecticides against leafhopper and aphid in okra. Karnataka J. Agric. Sci., 22(3-Spl. Issue ) :714-715.
- Anonymous (2014). National Horticulture Board. Annual Report. pp. 5-6.
- Chaudhari, V. K., Desai, H. R. and Patel, N. M. (2015). Assessment of the insecticide resistance build up on cotton leafhopper Amrasca bigutulla bigutulla (Ishida). Internat. J. Adv. Multidisciplinary Res., 2 (11): 4 - 8.
- Chaudhary, H.R. and Dadeech (1989). Incidence of insects attacking okra and the available losses caused by them. Ann. Arid Zone, 28(3): 305-307.
- Gavkare, Kumar, S., Sharma, N. and Sharma, P.L. (2013). Evaluation of some novel insecticides against Myzus persicae (salzer) Capsicum. Bioscan, 8 (3) : 1119-1121.
- Ghosh, A., Samanta, A. and Chatterjee, M.L. (2014). Dinotefuran: A third generation neonicotinoid insecticide for management of rice brown plant hopper. African J. Agric. Res., 9 (8) : 750-754.
- Ghosh, S.K. and Chakraborty, K. (2015). Integrated field management of jassid (Amrasca biguttula biguttula ishida.) infesting ladysfinger (Abelmoschus esculentus L.) using biopesticides. Intl. J. Sci. Envt. Tech., 4 (2): 459 – 467.
- Halappa, B. and Patil, R.K. (2016).Detoxifying enzyme studies on cotton leafhopper, Amrasca biguttula biguttula (Ishida), resistance to neonicotinoid insecticides in field populations in Karnataka, India. J. Plant Protec. Res., 56(4): 346-352.
- Kalra, V. K., Ram, S., Saini, R.K., Rohita, H. R., Jaglan, R.S., Chauhan, R. and Sharma, S. S. (2001). Occurrence of insecticide resistance in leafhopper, A. biguttula biguttula (Ishida) on okra. J. Entomol. Res., 25 (4) : 263-265.
- Mohammad, R., Mohammad A, S., Hamzeh, I. and Mohammad, E. (2013). Toxicity of new insecticides against pomegranate aphid, Aphis punicae. Internat. Res. J. Appl. & Basic Sci., 4 (3): 496-501.
- Nikita, Awasthi, S., Barkhade, U. P., Patil, S. R. and Lande, G.K. (2013). Comparative toxicity of some commonly used chemicals to cotton aphid and their safety to predatory coccinellids. Bioscan, 8 (3) : 1007-1010.
- Ravikumar, S. S., Chillar, B. S. and Rohilla, H. R. (2003). Toxicity of Nitroguanidines/ Neonicotinoids and conventional insecticides against leafhopper, Amrasca biguttula biguttula on okra under screen-house. Indian. J. Ent.,65 (2) : 268-272.
- Shreevani, G.N., Sreenivas, A.G., Bheemanna, M. and Hosamani, A.C. (2012). Toxicity studies of neonicotinyls against leafhopper [Amrasca biguttula biguttula (Ishida)] on Bt cotton. Karnataka J. Agric. Sci., 25 (4): 540-542.
- Shreevani, G.N., Sreenivas, A.G., Bheemanna, M. and Hosamani, A.C. (2014). Toxicity studies of insecticides against leafhopper, Amrasca biguttula biguttula (Ishida) on Bt cotton under laboratory conditions. J. Cotton Res. Dev., 28 (2): 316-318.