한국응용곤충학회 학술대회논문집 2017 한국응용곤충학회 추계학술발표회 및 국제심포지엄 , 해충관리의 정책적 강화 (p.18-18)

The Efficacy of Plant Extracts Against Adult Grapholita molesta (Lepidoptera: Tortricidae) in Laboratory

키워드 :
botanical extracts,oriental fruit moth,Nicotiana tabacum,Allium sativum

초록

Oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae), is an important pest for both stone and pomefruits. In a previous study, we selected four best plant extracts [Nicotiana tabacum L., Allium sativum L., Zanthoxylumpiperitum (L.) DC., and Sapindus mukorossi Gaertn.] against first instar larva, and here we evaluated them against adultstage (<5 d old) in laboratory. N. tabacum applied at 2 mg/ml showed highest corrected mortality of 85 and 100% infemale and male, respectively, within 168 h of exposure. Combined spray of N. tabacum and A. sativum showed LT50of 103.5 and 63.9 h on female and male, respectively. We also evaluated the deterrent effect of the plant extracts onovipositioning, and found that female laid less egg (29) on N. tabacum treated twigs at the concentration of 4 mg/twig.Thus N. tabacum can be a potential botanical insecticide against G. molesta.