LIFE TABLE OF POTATO LEAF MINER Liriomyza huidobrensis Blanchard (DIPTERA: AGROMYZIDAE) TO STUDY THE BIOLOGY AND NATURE OF DAMAGE UNDER LABORATORY CONDITION

The life table study of Pea leaf miner, Liriomyza huidobrensis Blanchard, was conducted in laboratory ofEntomology division of Nepal Agricultural Research Council with the aim to understand the patterns in thedevelopment, survival and mortality of pea leaf miner along with the nature of damage in laboratory condition.The results explained that oviposition and feeding punctures were significantly higher in lower foliage than inupper foliage level. It was observed that there was low mortality in adult stages (13.72%) compared to other lifestages (egg: 48.26%, larva: 41.17% and pupa: 27.14%, respectively). Male and female ratio was 1:1.39 with theaverage of 13.60±1.53:19.00±1.84 in the laboratory condition whereas in the field condition, it was 0.98:1. Theaverage egg, larval, and pupal development period of L. huidobrensis recorded were 4.75±0.335; 10.08±0.238and 12.19±0.233 days respectively. The average survival time period of male and female feeding only honey andwater was 5.78±0.86 and 3.22±0.954 days, respectively. It was concluded that the mortality trend was stagespecific and adult ovipositional and feeding preferences is more towards the older, thicker and larger lowerleaves