【Objective】 Henosepilachna vigintioctopunctata (Fabricius) and Henosepilachna vigintioctomaculata (Motschulsky), two kinds of phytophagous ladybeetles in China, are destructive pests causing great damage to solanaceous plants. They are difficult to distinguish based on external morphological characteristics, and it is therefore necessary to develop a rapid and accurate method to differentiate them. 【Method】 We established a molecular identification technique using species-specific (SS) PCR prime...

Agricultural Science  Agronomy  Entomology 

Doi:10.7671/j.issn.1001-411X.202101008

【Objective】 The preparation ofGrapholitha molesta sex pheromone microcapsule was investigated, and the sustained release effect of the microcapsule under indoor conditions was evaluated. 【Method】 Adopting G. molesta sex pheromone (E8-dodecenyl acetate) as core material, octenylsuccinate starch sodium, emulsifying starch-809, maltodextrin, ？-cyclodextrin and gelatin as wall materials, G. molesta sex pheromone microcapsule emulsion was prepared. The factors that affect the particle size distributi...

Agricultural Science  Agronomy  Entomology 

Doi:10.7671/j.issn.1001-411X.202103009