Ten insecticide formulations. including five ear tags containing pyrethroids, were tested against field populations of Tabanus abactor Philip. The most effective insecticide was the 1.0% pcrmethrin pour-on which caused greater than 55% mortality of exposed specimens through 2 weeks. The 10% permcthrin ear tag produced 79 and 55% mortality of T. abaclor 2 and 3 weeks after application, respectiv...

Insecticide resistance and concomittant field failure to control the diamondback moth (DBM), Plutella xylostella were first recorded in 1968 in Punjab. Studies carried out in different states like Tamil Nadu, Karnataka, Madhya Pradesh, Punjab, indicate that fenvalerate, quilnalphos and monocrotophos resistance are now ubiquitous in Plutella xylostella. In Tamil Nadu, the discriminating dose tec...