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Journal of Entomology and Zoology Studies
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P-ISSN: 2349-6800, E-ISSN: 2320-7078

Journal of Entomology and Zoology Studies

2019, Vol. 7, Issue 6
Seasonal incidence of sucking insect pests infesting groundnut crop at Raipur (Chhattisgarh)

Tarun Kumar Nayak, Sonali Deole, SS Shaw and Nandan Mehta

The field experiment was conducted at Research Cum Instructional Farm at IGKV, Raipur (C.G.) during kharif 2018, to know the seasonal incidence of sucking pests viz…aphid (Aphis craccivora), thrip (Scirtothrips dorsalis) and hoppers (Empoasca kerri) infesting groundnut. Aphid, thrips and hoppers appeared during 33rd standard meteorological week (SMW) i.e. 13th-19th August( 2nd week) . The peak population of aphid were observed in the first week of September with a mean population of 8.48 top 2cm shoot. Whereas, the peak population of thrips (3.84/top bud leaves) and hoppers(5.68/top 3 leaves) were observed in the second week of September.
The correlation between hoppers, E. kerri and weather parameters during kharif 2018 results indicated that the population demonstrated a significant positive association with minimum temperature (r = 0.610) and mean temperature (0.575), while thrips, S. dorsalis also showed significant positive association with minimum temperature (r = 0.681) and mean temperature (0.606).
Mean population of Aphid, <em>A. craccivora</em> during <em>kharif</em> 2018
Fig. 1: Mean population of Aphid, A. craccivora during kharif 2018
Mean population of hoppers, <em>E. kerri</em> during <em>kharif</em> 2018
Fig. 2: Mean population of hoppers, E. kerri during kharif 2018
Regression equation between weather parameters and population buildup of hoppers, <em>E. kerri.</em>
Fig. 3: Regression equation between weather parameters and population buildup of hoppers, E. kerri.
Pages : 83-87 | 818 Views | 145 Downloads


Journal of Entomology and Zoology Studies Journal of Entomology and Zoology Studies
How to cite this article:
Tarun Kumar Nayak, Sonali Deole, SS Shaw, Nandan Mehta. Seasonal incidence of sucking insect pests infesting groundnut crop at Raipur (Chhattisgarh). J Entomol Zool Stud 2019;7(6):83-87.

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