出版社：International Academy of Ecology and Environmental Sciences
摘要：To determine the most appropriate concentration and application time of mineral oil against Pulvinariaaurantii Cockerell, the reaction rate of egg hatching and the emergence of mobile cushion citrus instars todifferent concentrations of mineral oil in the laboratory conditions with a temperature of 4 ± 25 °C, relativehumidity 5 ± 75 percent and 12 hours of light every 24 hours over four days after applying the treatmentswas studied. In this study, four different concentrations of mineral oil including 0.2, 0.4, 0.6 and 0.8%(namely 200, 400, 600 and 800 ml /100 liter water) and control (water without mineral oil) were selected astreatments and tested on the samples of citrus cushion eggs in various stages of hatching (10, 30, 50, 70 and90%). The results showed that the most appropriate time to control is when 50 percent of citrus cushioneggs are hatching and the best mineral oil concentration is 0.77%.
关键词：Pulvinaria aurantii; first instar; mineral oil.
