| chirality and bioactivity of the sex pheromone of madeira mealybug (hemiptera: pseudococcidae). | two compounds (trans-1r,3r-chrysanthemyl r-2-methylbutanoate and r-lavandulyl r-2-methylbutanoate) identified from aeration extracts of virgin female madeira mealybug, phenacoccus madeirensis green (hemiptera: pseudococcidae), were synthesized and tested in field bioassays in northern taiwan over a 1-mo period. in total, 1,492 male p. madeirensis were captured in sticky traps. our results showed that 1 microg of synthetic trans-1r,3r-chrysanthemyl r-2-methylbutanoate released from a plastic tube ... | 2011 | 21735899 |