摘要
为探索烟草甲和赤拟谷盗的有效绿色防治方法,进行了新型植物防护剂的开发研究。通过触杀、熏蒸和驱避试验测试了柳叶亚菊挥发油的活性,并通过GC/MS分析了柳叶亚菊挥发油的成分。结果显示:(1)从柳叶亚菊挥发油中共鉴定出了23种化合物,占挥发油总量的96.13%。其主要成分为:樟脑(36.50%)、杜松脑(16.44%)、桉叶油醇(9.61%)和α-红没药醇(4.77%)等。(2)柳叶亚菊挥发油对烟草甲和赤拟谷盗均表现出较明显的熏蒸活性(LC_(50)分别为26.60 mg/L和24.29 mg/L)和触杀活性(LD_(50)分别为25.66μg/头和64.51μg/头)。(3)柳叶亚菊挥发油对烟草甲和赤拟谷盗也表现出明显的驱避作用。在高浓度(0.500 0%,体积分数)条件下分别处理后2 h和4 h时,柳叶亚菊挥发油对烟草甲的驱避率高于60%,而对赤拟谷盗的驱避率高于90%。显示柳叶亚菊挥发油对烟草甲和赤拟谷盗均具有较好的防治效果。
To explore environmentally green control methods against Lasioderma serricorne and Tribolium castaneum,a new botanical protectant was studied.The chemical components in Ajania salicifolid essential oil were analyzed by GC/MS.The results showed that:(1)A total of 23 compounds were identified in the essential oil,their contents accounted for 96.13%of the total essential oil content by weight.The major components identified were camphor(36.50%),eudesm-7(11)-en-4-ol(16.44%),eucalyptus(9.61%)andα-bisabolol(4.77%).(2)A.salicifolid essential oil presented clear fumigant activity(LC50=26.60 mg/L and 24.29 mg/L)and contact toxicity(LD50=25.66μg/adult and 64.51μg/adult)against L.serricorne and T.castaneum.(3)A.salicifolid essential oil had an observable repellent activity against T.castaneum.After 2 and 4 hours’treatments at the concentration of 0.5000%(volume fraction),the repellent efficiency of A.salicifolid essential oil against Lasioderma serricorne was higher than 60%,while it was higher than 90%against T.castaneum.Therefore,A.salicifolid essential oil has control bioactivities against L.serricorne and T.castaneum and could be developed into a new plant-derived insecticide.
作者
杨盈盈
邵亚洲
石毛宁
徐婕
梁俊玉
YANG Yingying;SHAO Yazhou;SHI Maoning;XU Jie;LIANG Junyu(College of Life Sciences,Northwest Normal University,Lanzhou 730070,China)
出处
《烟草科技》
EI
CAS
CSCD
北大核心
2021年第2期30-35,43,共7页
Tobacco Science & Technology
基金
甘肃省自然科学基金项目“基于植物源的当归仓储害虫防治研究”(18JR3RA092)。
关键词
烟草
仓储害虫
烟草甲
赤拟谷盗
柳叶亚菊
挥发油
触杀活性
驱避活性
Tobacco
Stored-product pest
Lasioderma serricorne
Tribolium castaneum
Ajania salicifolid
Essential oil
Contact toxicity
Repellent activity
