Clover cutworm

Sex pheromone component of the diamond back moth and the clover cutworm moth (Scotogramma trifolii). Female sex pheromone of cotton bollworm (Heliothis armigera). Bpo.15 140°. 

The sex attractant produced by the female clover cutworm, Scoto-gramma trifolii, is a mixture of (Z)-ll-hexadecenyl acetate and (Z)-ll-hexadecenol 288). A mixture of these two compounds containing about 10% Zll-16 OH has proved to be most attractive 289, 290) while 20—25% Z11-16 OH decreases the catch of males appreciably 290). Adult males of the glassy cutworm, Crymodes devastator, are attracted by traps baited with equal parts of (Z)-ll-hexadecenyl acetate, (Z)-ll-hexadecenal and (Z)-7-dodecenyl acetate 291). No other species were trapped by this mixture. The addition of small quantities of either (Z)-11-hexadecenol or (Z)-9-tetradecenyl acetate completely inhibited attrac-tancy in the field. As a result of field tests, Underhill et al. 292) have recently found that alkenals may be as important in lepidopteran sex attractants as the acetates and alcohols. 

Underhill, E. W., W. F. Steck, and M. D. Chisholm Sex pheromone of the clover cutworm moth, Scotogramma trifolii isolation, identification and field studies. Environ. Entomol. 5, 307—310 (1976). 

Struble, D. L., and G. E. Swailes A sex attractant for the clover cutworm, Scotogramma trifolii (Rottenberg), a mixture of Z-ll-hexadecen-l-ol acetate and Z-ll-hexadecen-l-ol. Environ. Entomol. 4,632—636 (1975). 

Sex attractant for clover cutworm, Scotogramma trifolii field tests with... 

---