Monitoring of seasonal abundance of sucking pests complex of guava (Psidium guajava L.) using different colored sticky traps under high-density planting system

摘要

The field experiment was carried out in the orchard, Horticultural College and Research Institute, TNAU,Coimbatore from September 2016 to April 2017 to monitor the seasonal abundance of insect pests by installing colored stickytraps. The experiment result showed that the maximum number of A. gosypii was trapped on yellow sticky traps with the meantrap catches of 50.68 A. gosypii per trap per week followed by 9.75 A. gosypii in blue sticky traps as against the minimumnumber of 1.70 A. gosypii in a red sticky trap. The maximum number of A. dispersus was trapped on yellow sticky traps with themean trap catches of 34.82 per trap per week followed by 10.46 in blue sticky traps as against the minimum number of 1.68spiraling whiteflies in a red sticky trap. The maximum number of B. tabaci was trapped on yellow sticky traps with the meantrap catches of 14.83 per trap per week followed by 6.01 in blue sticky traps as against the minimum number of 0.73 whitefliesin a red sticky trap.