ナガチャコガネ幼虫に強い殺虫活性を示す昆虫病原性糸状菌Beauveria amorpha感染特性および本菌株を用いた防除法の検討

概要

論文の詳細を見る
Heptophylla picea larvae (Coleoptera: Scarabaeidae) are serious pests of tea fields in Japan. To control H. picea larvae with the entomopathogenic fungus, Beauveria amorpha (Strain: HpBa-1), we studied H. picea larval ecology and properties of HpBa-1 under low temperature conditions. The amount of food consumed by H. picea larvae at 10℃ was not significantly different from that at 20℃. Therefore it is necessary to control H. picea larvae before winter (soil temperatures: below 10℃) to suppress damage to tea roots during the winter. The best temperatures for HpBa-1 growth were 20℃ and 25℃, but the fungus can grow under 15℃. During October and November (soil temperatures: above 15℃), H. picea larvae moved to the soil surface (0-10 cm) from a depth of 20-30 cm. It is possible to control H. picea larvae by soil surface application of B. amorpha at this time. H. picea larvae seem to be infected and controlled effectively by applying HpBa-1 between October and November.
日本応用動物昆虫学会の論文
2004-11-25