Effect of temperature and BSFB population on the growth and yield of Brinjal

Abstract

Brinjal shoot and fruit borer (BSFB) leucinodes orbonalis is very persist insect. The experiment on brinjal shoot and foot borer (BSFB) in brinjal was conducted from 5th July to 30th October in Bangabandhu Sheikh Mujibur Rahman Agriculture university, Gazipur. The results indicated that the number of BSFB adult was higher in the vegetative stage than the reproductive stages, among the reproductive stages; late fruiting stage encountered the maximum mean number of BSFB adults (5). The population of BSFB adult is highly correlated with temperature. A correlation between the number of BSFB adults and the rate of infestation in shoots or fruits was found. This correlation indicated that for each individual adult caught BSFB 4.70% shoot and 4.123% fruit infestation by number and 6.4% fruit infestation by weight. Percent fruit infestation both by number and weight and the daily temperature are positively correlated, which is indicated by the correlation coefficient of 0.7030 by number and 0.56 by weight. Similar effects of higher temperature on the population increase and increased activity of many insect pests including BSFB have been reported.