| Icerya aegyptiaca was regarded as an important pest for ornamental plants in sub-tropical and tropical zone and becoming serious in recent years in Guangzhou area. For electing effective and safe insecticides to I. aegyptiaca, the activity and efficacy of the several kinds of insecticides to I. aegyptiaca were evaluated through bioassay in laboratory and tested in the field. The result of laboratory toxicity showed that these insecticides had good activities against the 3rd larvae of I. aegyptiaca except buprofezin. Methomyl had the highest control effect, dichlorvos and chlorpyrifos had good activities in lab and good field control effect. |
