Thrips (larvae and adults)were collected into plastic vials (1.0cm diameter×5 cmhigh) with plant pollen using a vacuum powered aspirator. The vials were sealed with screened lids lined with Kimwipe tissue, and opened before fumigation.Larvae and adults showing no response when prodded with a blunt probe were considered dead for 24 h after fumigation. Pupae on paper discs were fumigated and eclosion of pupae was scored for mortality rates of pupae.