author(s)
Ashrith KN, Sreenivas AG, Guruprasad GS, Hanchinal SG and Indhusri Chavan

abstract
In the present study, attempted to describe insect diversity in direct seed and transplanted rice growing area of Hyderabad Karnataka region in Karnataka. The investigation was carried out for one year in two cropping seasons viz., rabi and Kharif. Lepidopteran pest population is more in DSR than compared to TR, whereas sucking insect pest population was higher in TR than DSR. In case of natural enemies spider and coccinellids, the population was more in DSR than TR, but mirid bug which is a specific predator on BPH was more in TR than DSR. The diversity indices used here are Shannon-Wiener index (H), which is sensitive to changes in the abundance of rare species in a community and Simpson index (λ), which is sensitive to changes in the most abundant species in a community. Species richness (R) examines the number of species occurring in a habitat and when all species in a sample are maximum. In DSR ecosystem maximum taxa recorded were eight during 70 DAS. However, the highest number of individuals (69) was recorded during 80 DAS Shannon index was more during 70 DAS whereas Simpson_1-D was more during 80DAS.