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%).
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This research project was sponsored by the Natural Sciences Fundation of Heilongjiang Province (94003)
Responsible Editor: Chai Ruihai
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Darva, B., Toledano, J.C., Defu, C. et al. Control ability of extrats fromAjuga plants on some pests. Journal of Forestry Research 8, 160–163 (1997). https://doi.org/10.1007/BF02855410
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DOI: https://doi.org/10.1007/BF02855410