JSriNETEENTH EEPOET OF STATE ENTOMOLOGIST 23 



on garden truck and some grasses, occurred in unprecedented abun- 

 dance over a large part of the State, and the moths themselves, along 

 with tliose of Chorizagrotis auxiliaris Grote, became tlie source of 

 much annoyance in many localities. Agrotis havilae Grb. and Agrotis- 

 c-nigrum L. were collected along with Chorizagrotis auxiliaris on 

 April 20th as part of a large army of cutworms marching across 

 prairie land in the vicinity of Clarkston. 



Red-Humped Apple Caterpillar {Scliizura concinna A. & S.)- The 

 larvae of this species caused some damage to the foliage of apple during 

 the latter part of July and first part of August in the vicinity of 

 Kalispell. 



Sugar-Beet Webworm (Loxostege sticticalis L.). Although many 

 reports were received relative to the overwintering of immense num- 

 bers of this insect, especially throughout the more northern sections 

 of the State, it is not believed to have been nearly as abundant over 

 the State as a whole as during the past two or three years. 



Imported Cabbage Worm {Pontia rapae L.). The common "cab- 

 bage worm" was responsible for much more than the average amount 

 of damage and in some instances repeated sprayings failed to give 

 satisfactory control. 



Poplar Sphinx Moth (Marumda modesta Harris). Many speci- 

 mens of this moth came to the laboratory. 



Green Fruit Worm (Xylina). Injury to the fruit by this green 

 caterpillar was noticed in many of the apple orchards of the Bitter 

 Root Vallej", in some cases being of sufficient importance to warrant 

 control measures. 



Codling Moth {Carpocapsa pomoneUa L.). This important fruit 

 pest has been found to occur throughout practically the entire Bitter 

 Root Valley. According to Dr. W. S. Regan, fruit pest control spe 

 cialist for the Montana Experiment Station, the long period during 

 whicli the developing fruit is exposed to the newly hatched larvae in 

 the warmer, drier climates probably explains the more serious nature 

 of the infestations in the vicinity of Missoula than farther u]i the 

 valley. 



Bud Moth {Tnietocera ocellana Schif.). Injury to the opening 

 fruit buds in the spring, which reduces in a large measure the setting 

 of the fruit, and the feeding cavities in the fruit itself, caused by the 

 small brownish caterpillars, are responsible for the rather important 

 rating as a fruit pest which this insect generally receives. Practically 



