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Control ability of extrats fromAjuga plants on some pests |
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| Authors: | Bela Darva Josep Coll Toledano Chi Defu Li Yuwen Jin Chuanling Lou Yanming Wu Jing Tai |
| Affiliation: | (1) Plant protection institute, Hungarian Academy of sciences, P.O. Box 102, 11-1525 Budapest, Hungary;(2) CSIC Department of Organic and Biological Chemistry, Jordi Girona 18-26, 08034 Barcelona, Spain;(3) Northeast Forestry University, 150040 Harbin, P.R. China;(4) The Quarantine and Control Station, 110000 Liaoning Province, P. R. China;(5) Forestry Planning and Designing Institute, Daxinganling;(6) Xinqing Forestry Bureau, Xinging, China |
| Abstract: | Several phytoecdysteroids have been found in the extracts ofA. multiflora andAlinerifolia using HPLC analysis. Those were 20-OH ecdysone, cyasterone. 3-acetate-20-OH ecdysone. 2-acetate-20-OH edysone, ajugalactone. We found out that those phytoecdy steroids could lead the second instar larva ofClostera anastomosis andStilpnotia candida to death. The modified mortality rate was from 44.64% to 96.24%. Those extracts could significantly reduce the amount of nymph produced by the femaleTuberolachnus salignus. The number of the nymph produced after treating with those extracts was only 20% to 70% of that produced by the untreated group. The death rate of the newly produced nymph which treated was among 33.33% to 58.82%. It was much higher than the death rate of the control group (17.57%). This research project was sponsored by the Natural Sciences Fundation of Heilongjiang Province (94003) Responsible Editor: Chai Ruihai |
| Keywords: | Ajuga Phytoecdysteroids Control Clostera anastomosis Stilpnotia candida Tuberolachnus salignus |
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