| field evaluation of a slow release pheromone formulation to control the american bollworm, helicoverpa armigera (lepidoptera: noctuidae) in pakistan. | trials to control the american bollworm, helicoverpa armigera (hübner) by the technique of mating disruption were carried out in the pakistan province of punjab during the 1996 cotton season. a slow release pvc resin formulation, selibate(r) ha, containing a 97:3 mixture of the major (9z-hexadecenal) and minor (11z-hexadecenal) components of the female sex pheromone of h. armigera was applied at a rate of 40 g active ingredient ha-1 during august 1996. the formulation was applied around the term ... | 2000 | 10996859 |
| effectiveness of two insect growth regulators against bemisia tabaci (gennadius) (homoptera: aleyrodidae) and helicoverpa armigera (hübner) (lepidoptera: noctuidae) and their impact on population densities of arthropod predators in cotton in pakistan. | field efficacies of two insect growth regulators (igrs) at two recommended application rates, buprofezin at 370 and 555 g ai ha(-1) and lufenuron at 37 and 49 g ai ha(-1), were determined against the sweet potato whitefly, bemisia tabaci (gennadius), and the cotton bollworm, helicoverpa armigera (hübner), in experimental plots of cotton at the directorate of cotton research, faisalabad, pakistan. adverse effects of the igrs on populations of associated arthropod predators, namely geocorids, chry ... | 2006 | 16862616 |