Control of Whitefly, 1987

Efficacy trials were conducted at a commercial anthurium farm in Mt. View, Hawaii, on plants grown in volcanic cinder under 80% polypropylene net shade. Experimental plots measured 15 by 6 ft arranged in a randomized complete block with 4 treatments and 3 replicates/treatment. A total of 8 applications of selected insecticides were applied every 2 wk beginning 4 Sep 1986 (250 gal/acre) with a compressed-air sprayer with an 8004 Teejet nozzle at 40 psi. The spreader sticker Triton B 1956 was added to treatments, including the control plants, at a rate of 3 fl oz/ 100 gal. Sprays were directed to the developing floral area. Treatments were evaluated on 16 Jan 1987 by examining the leaf sheath under a dissecting microscope. Adults, pupae, nymphs, and eggs were noted as present or absent.