Fumigant Toxicity of Phenylpropanoids Identified in Asarum sieboldii Aerial Parts to Lycoriella ingenua (Diptera: Sciaridae) and Coboldia fuscipes (Diptera: Scatopsidae)

摘要: ABSTRACT Lycoriella ingenua (Dufour) (Diptera: Sciaridae) and Coboldia fuscipes (Meigen) Scatopsidae) are two of the most economically important insect pests cultivated mushrooms. The toxicities to fly larvae three phenylpropanoids (methyleugenol, myristicin, safrole) from aerial parts Asarum sieboldii Miquel (Aristolochiaceae) were compared with those currently available carbamate insecticide benfuracarb. In a contactþfumigant mortality bioassay L. C. larvae, methyleugenol (1.46 2.33 µg/cm2) was toxic compound, followed by safrole (2.03 2.59 myristicin (3.59 4.96 µg/cm2), based on 24-h LC50 values. less than benfuracarb (LC50, 0.75 0.55 µg/cm2). vaporphase tests consistently more in closed versus open containers, indicating that effect compounds largely result vapor action. Global efforts r...