A study on total pest population present in aman paddy at North Tripura in respect to their economic threshold level (ETL) status

Abstract

Paddy is the main crop cultivated in the region of North Tripura. Most of the farmers grow MTU 7029 (Swarna) variety during Aman season. The study aims to find out different types of pests attacked to varying stages of growth and also find out whether they cross their ETL level or not. The study has been carried out at the farmers’ field of four different villages under the Laljuri R.D block. It has been observed that rice hispa, leaf folder, yellow stem borer, and various bugs are the major pest present over the paddy population. Among the total set of the population no insect crossed their Economic Threshold Level (ETL) according to IIRR, NCIPM-ICAR guideline, in a field five random places have been selected and the number of tiller per plant and number of leaf per tiller has been counted, among per plant every seven-day interval the presence of different pests has been recorded. The pest data were evaluated, and it has been observed that no insect crossed their Economic Threshold Level (ETL).