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戴氏楼梯草根提取物对储粮害虫的杀虫活性及其在粮食保护中的应用。

Insecticidal activity of the root extract of Decalepis hamiltonii against stored-product insect pests and its application in grain protection.

机构信息

Department of Food Protectants and Infestation Control, Central Food Technological Research Institute, (Council of Scientific and Industrial Research), Mysore, 570 020 India.

出版信息

J Food Sci Technol. 2010 Jun;47(3):310-4. doi: 10.1007/s13197-010-0049-6. Epub 2010 Jul 29.

Abstract

Root extracts of Decalepis hamiltonii were tested for insecticidal activity against the stored products pests, Rhyzopertha domonica, Sitophilus oryzae, Stigobium pancieum, Tribolium castaneum and Callosobruchus chinensis, in residual and contact toxicity bioassays. Methanolic extract showed LC50 value of 0.14 mg/cm(2) for all the test species in a filter paper residual bioassay. The extract was effective as a grain protectant for wheat and green gram. Reduction of F1 progeny was observed in treated grain stored for 3-4 months. The extract did not affect the germination of the treated grains. Our results indicate that methanolic extracts of D. hamiltonii has a potential to control stored product pests and could serve as a natural grain protectant.

摘要

戴可拉属 Hamilton 的根提取物在残留和接触毒性生物测定中测试了对仓储害虫,如罗非昔酮、稻象甲、绿豆象、赤拟谷盗和斑皮蠹的杀虫活性。甲醇提取物在滤纸残留生物测定中对所有测试物种的 LC50 值为 0.14mg/cm(2)。该提取物对小麦和绿豆有很好的谷物保护作用。在处理后的谷物储存 3-4 个月后,观察到 F1 后代数量减少。提取物不影响处理过的谷物的发芽。我们的结果表明,戴可拉 Hamilton 的甲醇提取物具有控制仓储害虫的潜力,可以作为天然的谷物保护剂。

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