International Journal of Chemical Studies
Vol. 7, Issue 6 (2019)
Diversity of natural enemies on sorghum ecosystem
Author(s): R Beulah Bhakiya Sherlin, N Natarajan, T Elaiyabharathi, N Kumaravadivel and T Selvi
Abstract: The intensive study was carried out during karif 2018 at the Tamil Nadu Agricultural University, Coimbatore, to explore the natural enemy diversity in sorghum agro ecosystem. the richness and diversity of natural enemies was measured through the popular standard diversity indices such as Simpson’s diversity index, Shannon-Wiener diversity index, Margalef richness index and Pielou’s evenness index from seedling to maturity stage. About of 45 species of natural enemy have been documented and identified upto the minimum level of insect families in the taxonomic hierarchy. Insect species belonging to the orders Coleoptera (13), Hemiptera (3), Hymenoptera (23), Diptera (2), Neuroptera (1), Thysanoptera (2) and Dermaptera (1) were recorded and identified. The natural enemy diversity and uniformity in distribution were increasing trend from seedling (H′=0.86, J'=0.27) to the maturity stages (H′=1.73, J'=0.59). The stage specific variation in diversity of natural enemies was observed.
Pages: 24-26 | 282 Views 28 Downloads
How to cite this article:
R Beulah Bhakiya Sherlin, N Natarajan, T Elaiyabharathi, N Kumaravadivel, T Selvi. Diversity of natural enemies on sorghum ecosystem. Int J Chem Stud 2019;7(6):24-26.