INSECTICIDAL ACTIVITY OF MELIA TOOSENDAN EXTRACTS AND TOOSENDANIN AGAINST 3 STORED-PRODUCT INSECTS
INSECTICIDAL ACTIVITY OF MELIA TOOSENDAN EXTRACTS AND TOOSENDANIN AGAINST 3 STORED-PRODUCT INSECTS
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DOI：
10.1016/0022-474x(95)00003-p
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发表时间：
1995-07-01
影响因子：
2.7
通讯作者：
ZHANG, X
中科院分区：
文献类型：
--
作者：
XIE, YS;FIELDS, PG;ZHANG, X
川楝子树皮提取物对锈谷甲虫、稻象甲、稻象的驱避、毒性和降低生殖力的作用和赤拟谷盗Tribolium castaneum（Herbst）进行了室内调查。用浓度分别为0.05 - 0.4%（375-3000 ppm川楝素）和0.5 - 2.5%（150-750 ppm川楝素）的含75和3%川楝素的提取物处理小麦籽粒，与对照相比，驱避甲虫50- 98%。供试材料对S.对锈赤霉C.ferrugineus没有毒性。栗色。75%川楝素提取物对S.和C.在暴露6周后，ferrugineus分别为675和1875 ppm川楝素。这两种提取物显着减少F-1成虫的所有三种昆虫在大多数治疗。川楝素纯品（98%）仅引起4%的死亡率。ferrugineus和S. 2周后，0.15%（1470 ppm川楝素）的浓度下，但与对照相比，F-1成虫显著减少。本研究表明，基于M.川楝子提取物可能是可行的。
Repellency, toxicity, and fecundity-reducing effects of bark extracts of Alelia toosendan on three stored-product beetles, the rusty grain beetle, Cryptolestes ferrugineus (Stephens), the rice weevil, Sitophilus oryzae (L.), and the red four beetle, Tribolium castaneum (Herbst), were investigated in the laboratory. Wheat kernels treated with extracts containing 75 and 3% toosendanin at concentrations from 0.05 to 0.4% (375-3000 ppm toosendanin), and from 0.5 to 2.5% (150-750 ppm toosendanin), respectively, repelled beetles by 50-98%, compared with controls. The test materials were more toxic to S. oryzae than C.ferrugineus and were not toxic to T. castaneum. The LC(50) values for the extract containing 75% toosendanin for S. oryzae and C. ferrugineus after 6 weeks exposure were 675 and 1875 ppm toosendanin, respectively. Both extracts significantly reduced F-1 adults of all three insect species in most treatments. Pure (98%) toosendanin caused only 4% mortality of C. ferrugineus and S. oryzae at a concentration of 0.15% (1470 ppm toosendanin) after 2 weeks, but significantly reduced the F-1 adults compared with controls. This study indicates that a natural grain protectant based on M. toosendan extracts may be feasible.