No. 123.] PLANT PEST CONTROL. Ill 



Corn J'Air Jl'orm. 

 During the early fall numerous specimens of what persons 

 supposed were European corn borers were sent in from all over 

 the State, but in the majority of cases they proved to be the 

 corn ear worm. This insect was very prevalent this year, es- 

 pecially in late sweet corn, in a large measure owing to the long 

 season. The corn ear worm is found throughout the United 

 States, and in certain localities is a very serious pest to sugar 

 corn. 



White Pine Blister Rust. 



The white pine blister rust work was carried on under the 

 management of Mr. C. C. Perry, and the excellent results ob- 

 tained were due largely to his efficiency and attention. 



The present knowledge of the status or distribution of the 

 white pine blister rust in Massachusetts is not as complete as 

 might be desired, because no organized scouting has been con- 

 ducted since 1917, all available funds having been needed to 

 carry out the program of local co-operative control work. The 

 records indicate, however, that to date (1921) the disease has 

 been found on Ribes (currants and gooseberries) in 269 towns, 

 and on pine in 81 towns out of a total of 354 cities and towns 

 within the State. 



As in previous years, control work — namely, the removal 

 of currants and gooseberries — has been conducted by the 

 Division of Plant Pest Control in co-operation with the Bureau 

 of Plant Industry, United States Department of Agriculture. 

 Beginning July 1, however, Federal dollar-for-dollar co-oper- 

 ation was withdrawn, and the work conducted with State and 

 local funds, the Federal Department continuing its interest in 

 the work by paying the salary of the agent in charge of the 

 field work. 



The policy adopted for the season was merely a continuation 

 of that of last year, providing for the conduct of control work 

 on the local co-operative basis. The ratio of co-operation w^as 

 changed somewhat, however, in that town appropriations were 

 met at the one-third rate, and private subscriptions on the 

 dollar-for-dollar plan. L^der this arrangement three towns 

 (Athol, Hubbardston and Stockbridge) appropriated a total of 



