Population dynamics and succession of fruit fly on sub-tropical fruits under rainfed condition in Jammu Region.
Sanjeev Rai, Uma Shankar, Bhagat R. M., Gupta S. P.
Author Affiliation: Rainfed Research Sub-Station for Sub-Tropical Fruits, Raya Sher-e-Kashmir University of Agricultural Sciences and Technology, Jammu- Jammu & Kashmir, India.
Indian Journal of Entomology 70 : 12-15
Abstract : Studies on the population dynamics and succession of fruitflies (Bactrocera zonata and B. dorsalis) in Jammu and Kashmir, India, revealed that fruit flies occurred on ber, guava, mango, citrus and phalsa, with peak populations of 450.7, 1882.2, 1967.3, 1069.3 and 85.3 adult male fruitfly/trap, respectively. Positive correlation between fruit fly and abiotic factors (temperature, humidity and rain) existed, whereas temperature (maximum and minimum) ranging between 15 and 30°C showed highly significant impact compared to the relative humidity on population fluctuations of the fruitflies and was significant at both 5 and 1%. Temperatures below 15°C was lethal for the growth and development of fruitflies and during this period (December and January), fruitfly populations were very low.