TECHNICAL BULLETIN. 



HATCH EXPERIMENT STATION 



OF THE 



MASSACHUSETTS 



AGRICULTURAL COLLEGE. 



/vo. /. 

 THE GREENHOUSE ALEYRODES (A. vaporahorum Westw.) 



AND THE 



STRAWBERRY ALEYRODES (A. packardi Morrill): 



A STUDY OF THE INSECTS AND OF THEIR TREATMENT. 



By AUSTIN W. MORRILL, Ph. D. 



AUGUST, 1908. 



The regular Bulletins of this Station will be sent free to all news- 

 papers in the State and to such individuals interested in farming as 

 may request the same. Technical Bulletins are sent only to those persons 

 interested in the subject treated of i?i each ease. 



AMHERST, MASS.: 



PRESS OF CARPENTER & MOREHOUSE, 

 1903- 



