130 MONTANA EXPERIMENT STATION. 



the body of the female is yellowish in color. The legs and antennae 

 are short and there are "no wings. The female walks very slowh". 

 A technical description of the species is not given here but may 

 be found on page i8o, of Vol. XXXIII, Canadian Entomologist, 

 1901. 



REMEDIES. 



This pest may be controlled Ijy the use of soap or kerosene 

 washes applied to the trunks of the trees during the winter season. 

 Its complete destruction will be facilitated by scraping off the loose 

 outer bark before applying the wash. Kerosene emulsion and soap^ 

 washes have been discussed in previous publications of this de- 

 partment of the Experiment Station. • 



THE STRAWBERRY CROWN=GIRDLER. 



Qtiorliyuchiis cn'atiis Linn. 



The strawberry crown girdler was brought to the writer's atten- 

 tion as a pest in IMontana in the summer of 1899 and since that 

 time has been the subject of much interest in this office. The econ- 

 cmic and biological features have been closely studied, but while 

 v\^e now make a report, it is not because we have learned all that 

 we might on these subjects. ]\Iore work might be done on the 

 evasive problems connected with the life-history and methods of con- 

 trolling the insect, but having reached a point where recommenda- 

 tions suggest themselves, it seems desirable to publish what inform- 

 ation we have secured. We shall at the same time review the work 

 of previous writers. 



During the summer of 1902 observations of considerable value 

 were made on the natural history of the species both in the field 

 and in the laboratory, and again in 1903 facts of some value were 

 secured. During the past summer (1904) 'Mr. Burle J. Jones, a 

 graduate of the Tvlontana Agricultural College and a thorough stu- 

 dent of entomology, was stationed by this office at Missoula for the 

 purpose of collecting insects and observing the habits of certain 

 pests. He was informed of the status of our knowledge of this 

 insect and instructed to closely observe its habits in order to verify 

 our previous notes and if possible to secure new facts. Because of 

 the fact that we were unable to have Mr. Jones in the field early in 



