The Repellent Effect of Three Plant-derived Substances Combination Against Atypus heterothecus
[Objective] To find a new method for prevention and control of spider oocysts in tobacco fields.[Method] The effects of 3-methyl-eicosane, eucalyptol and wild chrysanthemum essential oil on the selection behavior of Atypus heterothecus were studied by Y-tube olfactometer and impregnated filter paper method.[Result] The combination of 3-methyleicosane, eucalyptol and wild chrysanthemum essential oil with different volume ratios had a good repellent effect on A.heterothecus, among which the volume ratio of 8: 2: 3 had the best repellent effect, reaching 91.67％, and had a significant repellent effect within 72 h.[Conclusion] The combination of three plant-derived substances, 3-methyleicosane, eucalyptol and wild chrysanthemum essential oil, as an efficient plant-derived repellent to prevent spider oocysts in tobacco fields has application prospects.
Plant-derived substancesAtypus heterothecusY-tube olfactometerImpregnated filter paper methodRepellent effectiveness
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