2018 年 64 巻 p. 61-67
Comstockaspis perniciosa is a pest that injures Japanese pear, citrus, and other economically important fruit trees. The addition of 1,000-fold diluted buprofezin to 150-fold diluted machine oil suppressed the density of the next generation of C. perniciosa. Additionally, buprofezin added to sodium dioctyl sulfosuccinate and polyoxyethylene alkyl ether showed a higher control effect on C. perniciosa than buprofezin alone or when added to machine oil. Generally, C. perniciosa is treated with pesticides during the hatching peak period at the end of May to effectively control outbreaks. If it is treated 2 weeks earlier, then buprofezin can suppress the density of hatchlings and a higher effect occurs with the addition of a paraffin-spreading agent.