No records were obtained of the longevity of the adult moths under normal outdoor conditions. Adults that emerged March 27 and were liberated in rearing cages lived for about 3 weeks, the last one dying April 17. Parasites. a The natural enemies of the Douglas-fir cone moth are numerous and an important factor in the control of the species. ... Larvae are yellow-white, 11 mm. long to 2V2 mm. wide when full grown ; head dark brown to black with chitinized plate extending backanbsp;...
|Title||:||Cone and seed insects of western forest trees|
|Author||:||Frederick Paul Keen|