Abstract

AbstractSex pheromone components of the clearwing moth, Carmenta chrysophanes (Meyrick), were identified empirically in field tests as (Z,Z)‐3,13‐octadecadien‐1‐OAc and (Z,Z)‐3,13‐octadecadien‐1‐ol. Neither component, on its own, was attractive. In trials comparing six binary blends whose acetate contents ranged from 70 to 95%, most moths were caught in traps baited with a 90:10 ratio of acetate : alcohol. Differences between mean catches using the six blends were not significant at P < 0.05, but there was a significant positive correlation (P < 0.01) between mean catch and the proportion of acetate over the range tested. Gas‐chromatography analyses of pheromone glands revealed the presence of an 18‐carbon diene acetate and an 18‐carbon diene alcohol in a ratio of 88:12.

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