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双生座壳孢(Aschersonia duplex Berk.)是刺绵蚧强有力的昆虫病原真菌。致死后的虫尸,长期留存枝叶上,是病原在野外的保存形式,并成为再次侵染源。病原借水传、虫传而散播。人工放菌最佳时期是2月中至3月中。田间试验表明,人工诱发致病后通过持续感染,使虫口密度不断下降,防治效果显著。
Aschersonia duplex Berk. Is a powerful entomopathogenic entomopathogenic fungus. After the death of dead moths, long-term survival of branches and leaves, is the pathogen in the field of preservation, and become a source of infection again. Pathogen by water, insect spread. The best time for artificial phagocytosis is from mid-February to mid-March. Field trials showed that after the artificial induced pathogenicity through continuous infection, the density of insect population continued to decline, and the prevention and treatment effect was remarkable.