Seasonal incidence and effect of minimum temperature and vapour pressure on the population of mango hopper Amritodus atkinsoni Leth in middle Gujarat.
Patel J. R., Shekh A. M., Ratanpara H. C.
Author Affiliation: Department of Entomology, B. A. College of Agriculture, Gujarat Agricultural University, Anand Campus, Anand, Pin 388 110, India.
Gujarat Agricultural University Research Journal 20 : 5-8
Abstract : Amritodus atkinsoni is an important and regularly occurring insect pest of mango in middle Gujarat, India. It remains active throughout the year in the cracks and crevices of the mango trunk. However, maximum insect populations were found in the first half of May during 1989 and 1990, second half of September during 1988 and second half of March during 1991. Populations on twigs were found only during the period when young leaves and inflorescences were available. The effect of various meteorological factors on population build up of Amritodus atkinsoni revealed that only minimum temperature (rē = 0.64) and vapour pressure (rē = 0.73) showed a positive correlation.