Screening of eco-friendly insecticides and their schedules for the management of fruitfly associated with the fruits of bitter gourd

Eco-friendly insecticides along with some chemical insecticides were screened under three application schedules against fruit fly infesting bitter gourd fruits and were compared with untreated control plot on the basis of fruit damage (%) during rainy seasons of the cropping years. The average of two rainy seasons data showed that the treatment schedule fenthion + fenthion + fenthion had least fruit damage (1.33%) by the fruit fly followed by achook + malathion bait spray + malathion (5.46%). The maximum fruit damage was recorded in control plot (46.47%) followed by neem gold + malathion bait spray (15.27%). The average effect of ecofriendly insecticides of two rainy seasons showed minimum fruit damage during 39^th standard week (6.75%) followed by 41^st standard week (6.84%) and the maximum fruit damage was recorded during 40^th standard week (12.56%) followed by 38^th standard week (12.38%). The data pertaining to fruit weight loss by fruit fly revealed that the treatment schedule fenthion + fenthion + fenthion had resulted least fruit weight loss, i.e. 0.73% followed by the schedule achook + malathion bait spray + malathion (2.62%). The maximum fruit weight loss was in control plot (34.95%) followed by neem gold + malathion bait spray (9.54%). The experiments exhibited minimum fruit weight loss during 39^th standard week (3.97%) followed by 41^st standard week (4.08%) and the maximum fruit weight loss was during 40^th standard week (8.09%) followed by 38^th standard week (7.72%).