International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 3
First page : (1035) Last page : (1043)
Article doi: http://dx.doi.org/10.18782/2320-7051.3017

Seasonal Incidence and Bioefficacy of Newer Insecticides and Biopesticide against Aphids on Okra and Their Effect on Natural Enemies

B. A. Bade*, N. A. Nimbalkar, S. B. Kharbade and A. S. Patil
Department of Entomology, National Agricultural Research Project, Ganeshkhind, Pune, Maharashtra, India
*Corresponding Author E-mail: bade.babasaheb@gmail.com
Received: 24.05.2017  |  Revised: 5.06.2017   |  Accepted: 6.06.2017  

 ABSTRACT

Okra, Abelmoschus esculentus (L.) Moench commonly known as Bhendi is one of the most important vegetable crops in India. It is attacked by about twenty insect pests during different growth stages of which aphids, Aphis gossypii Glover is the most important sucking pest of okra which attacks at any stage of crop growth.
In present investigation, insecticidal treatments with acetamiprid 20 SP @ 15 g a.i./ha followed by Verticillium lecanii @ 2.5 kg/ha, acetamiprid 20 SP @ 15 g a.i./ha and thiamethoxam 25 WG @ 25 g a.i./ha were found most effective treatment against aphids after four sprays. The use of V. lecanii @ 2.5 kg/ha alone was found effective in controlling population of aphids on okra with minimum mortality of lady bird beetles as compared to other insecticides. At 10 days after sprays, the treatment with V. lecanii recorded highest population of 4.49 lady bird beetles/plant and it was superior over all the treatments except untreated control.  

Key words: Okra, Aphids, Seasonal Incidence, Newer Insecticides, V. lecanii

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Bade, B.A., Nimbalkar, N.A., Kharbade, S.B. and Patil, A.S., Seasonal Incidence and Bioefficacy of Newer Insecticides and Biopesticideagainst Aphids on Okra and Their Effect on Natural Enemies, Int. J. Pure App. Biosci.5(3): 1035-1043 (2017). doi: http://dx.doi.org/10.18782/2320-7051.3017