International Journal of Pure and Applied Zoology

- International Journal of Pure and Applied Zoology (2015) Volume 3, Issue 2

Biodiversity of Insects in Organic And Chemical Vegetable Fields in Tiruvallur District, Tamil Nadu, India

Insect diversity study was carried out in vegetable fields from January-2012 to December 2013 one organic and one chemical vegetable field were selected. Among the different orders Coleopteran was found to have high diversity. Order Odonata and Coccinellidae contained 16 and 13 species respectively. Both organic and chemical farms supported the same number of insect orders. Among the two different farming practices, organic field recorded higher number of taxa during January-June in the year 2012. Maximum number of individuals was collected from organic field. Maximum number of individuals from all taxa was collected during July –December 2012 in organic field. The other season (January-June 2012) also recorded high number of total individuals from organic field. In chemical field very low number of individuals was collected during January-June and July to December in both the year. In the present study maximum insect abundance and total number of individuals were recorded in organic fields. The study proved that organic farming practices can help in the population build-up of natural enemies and pollinators.

Author(s): V. Anbalagan, M. Gabriel Paulraj and Ignacimuthu, S.

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