Vol. 9, Issue 1 (2021)
Effect of phytochemicals their concentration and period of exposure on mortality of Aphis craccivora Koch (Hemiptera: Aphididae)
Author(s): Vineeta Sachan, CP Sachan, Sanjay Kumar, Prashun Sachan and PN Nigam
Abstract: A laboratory experiment was conducted at D.B.S.P.G. college Kanpur to study the insecticidal effect of 10 indigenous plant extracts (A. calamus, A. vasica, A. galanga, C. sativum, C. tiglium, J. curcus, S. indica, S. acmella, T. asthamatica and Neem gold) their different concentrations (0.5%, 1.0% and 2.0%) over three exposure periods (6hrs,12 hrs,24hrs) against bean Aphid, Aphis craccivora koch. Significant variation was recorded among plant extracts their concentrations and exposure periods. The highest mean mortality value of insect was recorded with plant extract of Neem gold (60.16%) followed by C. tiglium (59.38%), A. vasica (54.41%) and T. asthmatica (54.07%) C. sativum (53.55%), A. calamus (52.67%), A. galanga (52.24%), J. curcus (49.59%), S. indica (46.14%) and S. acmella (35.02). Likewise, 2% conc. of plants extract and 24 hrs exposure periods both were found to be most effective by achieving the highest mortality value 60.16% and 59.38% respectively. Combination effect of Neemgold with 2% conc (A10xB3). and 24hrs exposure period (A10xC3) exhibited highest mortality value 66.02% and 71.15% respectively. Similarly, interaction between 2%conc. with 24hrs exposure period (B3xC3) was found to be most useful by achieving 71.07% insect mortality. The cumulative performance of both combinations A10 x B3 x C3 and A3 x B3 x C3 were found to be most effective by achieving the highest mortality (83.85%.) of insect. Thus, extract of both Neemgold as well as A. galanga with 2% concentration over 24 hrs exposure duration may be used for achieving the highest mortality of Aphis craccivora, a serious pest of groundnut, cowpea, sorghum and vegetables in North India, further it may also be an ideal substitute for synthetic insecticides.
DOI: 10.22271/chemi.2021.v9.i1o.11363
Pages: 1050-1053 | 340 Views 60 Downloads
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How to cite this article:
Vineeta Sachan, CP Sachan, Sanjay Kumar, Prashun Sachan, PN Nigam. Effect of phytochemicals their concentration and period of exposure on mortality of Aphis craccivora Koch (Hemiptera: Aphididae). Int J Chem Stud 2021;9(1):1050-1053. DOI: 10.22271/chemi.2021.v9.i1o.11363
