Report 
  Title  
  Bioefficacy of Chlorfenapyr against American and Oriental Cockroaches, and House Flies on Wood, Concrete, and Vinyl Surfaces
  Key Words  
  Phantom SC, household surfaces
  Author  
  Timothy J. Husen, Ralph Narain, Abdul Hafiz Ab-majid, Shripat T. Kamble and Robert W. Davis
  Abstract  
  This research was conducted to determine biological activity of Phantom SC (chlorfenapyr) on wood, concrete, and vinyl surfaces. The experimental design was a 3 x 3 x 3 factorial (3 treatments, 3 surfaces, and 3 insect-pests). Each experimental unit consisted of a rigid-plastic cage (109 x 49.5 x 17 cm) with wood, concrete, or vinyl surfaces affixed to the bottom. The surface in each arena was sprayed with 0.37 or 0.50% chlorfenapyr. Insect populations were confined to pre-assigned units and covered with a lid. Insect mortality was observed for 28 and 5 days in cockroach and house fly experiments, respectively. Phantom SC (0.5%) yielded 100, 96, and 90% mortality in American cockroaches on wood, vinyl, and concrete surfaces, respectively. Chlorfenapyr 0.5% provided 100, 97, and 85% mortality in Oriental cockroaches on concrete, wood, and vinyl surfaces, respectively. Chlorfenapyr 0.37 and 0.5% caused 100% mortality in house flies on all treated surfaces after 4.5 days. Residual efficacy trials (29-42 days after initial treatment) with chlorfenapyr 0.5% against American cockroaches produced 87, 84, and 58% mortality on cement, vinyl, and wood surfaces, respectively. Our data indicates that Phantom SC is very efficacious on wood, concrete, and vinyl surfaces against cockroaches and house flies.