Abstract:

The field trap test on Ancylis sativa Liu showed that E9-12:Ac alone had a little attractness to male moths, but Z9-12:Ac alone could not attact them.Mixtures of E9-12:Ac and Z9-12:Ac in five various ratios were tested, and the mean catches reached their maximum in the natural E/Z (6.5:3.5) ratio.The preparation in this ratio was used to study the relationship between doses used and mean catches. Within the range 50~200 μg the traps were effectively attractive to the males in the field.Little attractness to males was found in the dosage of 1 μg and 500 μg.

Key words: Ancylis sativa Liu, Sex pheromone, Field trap test