20 Annals Entomological Society of America [Vol. IX, 



We have now nine field laboratories and two sub-stations. 

 The laboratory at Annapolis Royal, N. S., serves as head- 

 quarters for the control work and bionomical studies of the 

 brown-tail moth. Mr. G. E. Sanders, the officer in charge, is 

 also investigating the bud-moths and green-fruit worms of 

 apple and their control and is conducting insecticidal investiga- 

 tions. A sub-station is situated at Bridgetown, N. S., at present. 



A new and commodious laboratory building in Fredericton, 

 N. B., serves as headquarters for the work in New Brunswick, 

 of which Mr. J. D. Tothill and Mr. L. S. McLaine have charge. 

 Mr. Tothill is in charge of the colonization of the parasites and 

 predatory enemies of the brown-tail and gipsy moths which 

 enemies, through the courteous co-operation of Dr. L. O. 

 Howard, Chief of the United States Bureau of Entomology, we 

 are collecting and importing from the New England States. In 

 addition Mr. Tothill is conducting an intensive study of the 

 natural control of three of our widely spread and periodically 

 destructive insects — the tent caterpillar {Malacosoma disstria) 

 the spruce budworm {Harmologa fumiferana) and the fall 

 webworm. {Hyphantria cunea). It is our intention to continue 

 this study over a number of years. The results secured during 

 the past two or three years have indicated the value and 

 necessity of such an intensive study. Mr. McLaine has charge 

 of the field work against the brown-tail moth in the winter on 

 which a force of seventeen to twenty inspectors is engaged, and 

 in the summer he is stationed with two assistants at the Gipsy 

 Moth Laboratory, Melrose Highlands, Mass., in connection 

 with the breeding of the parasites of the brown-tail and gipsy 

 moths. 



At a field laboratory situated at Hemmingford, Quebec, a 

 little south of Montreal, Mr. C. E. Fetch is investigating the 

 apple and plum curculios, and other insects affecting apple in 

 connection with which experimental and demonstrative work 

 on spraying is conducted in a number of orchards. Mr. Fetch 

 has also been carrying on experiments for three seasons on the 

 control of locusts by means of the Coccobacilliis acridioruni. 



There are two Field Laboratories in Ontario. At Vineland 

 in the Niagara fruit district, Mr. W. A. Ross is in charge of a 

 laboratory where fruit insect investigations are mainly carried 

 on. For four seasons Mr. Ross has been studying the control 

 of the apple maggot {Rhagoletis pomonella). Two years ago 



