Acetone extracts of Annona cherimola Mill., Melia azedarach L., Artemisia absinthium L. and Quassia spp., were tested in laboratory trials on young females of Tetranychus urticae Koch (Acariformes,Tetranychidae). In the post-infestation tests, extracts of Melia and Annona caused a high mortality of the target females (84% and 96% for Melia and Annona, respectively) after 24 hours and 100% for both extracts after 48 hours. On the other hand Artemisia extracts caused 84% mortality of females after 10 days even if the oviposition rate was statistically lower than in the controls (2.5 and 6.7 eggs/female/day for Artemisia and controls, respectively).
TSOLAKIS H, RAGUSA DI CHIARA S (2005). Laboratory evaluation of the effect of plant extracts on Tetranychus urticae Koch (Acariformes, Tetranychidae). In WEIGMANN G, ALBERTI G., WOLTHMAN A., RAGUSA S. (a cura di), Acarina biodiversity in the natural and human sphere (pp. 539-548). PALERMO : Luxograph.
Laboratory evaluation of the effect of plant extracts on Tetranychus urticae Koch (Acariformes, Tetranychidae)
TSOLAKIS, Haralabos;RAGUSA DI CHIARA, Salvatore
2005-01-01
Abstract
Acetone extracts of Annona cherimola Mill., Melia azedarach L., Artemisia absinthium L. and Quassia spp., were tested in laboratory trials on young females of Tetranychus urticae Koch (Acariformes,Tetranychidae). In the post-infestation tests, extracts of Melia and Annona caused a high mortality of the target females (84% and 96% for Melia and Annona, respectively) after 24 hours and 100% for both extracts after 48 hours. On the other hand Artemisia extracts caused 84% mortality of females after 10 days even if the oviposition rate was statistically lower than in the controls (2.5 and 6.7 eggs/female/day for Artemisia and controls, respectively).
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