228 EXPERIMENT STATION. [Jan. 



tially successful, as numerous fruit worm millers were seen in- 

 side the netting during the season, and probably 40 per cent, of 

 the berries that developed on the sanded area were destroyed by 

 the worms. That a large percentage of the millers was smoth- 

 ered is showm by the fact that at picking time there were no- 

 ticeably more berries on the sanded area than on any equal 

 area of the surrounding bog, in spite of the great injury done 

 to the buds in the process of sanding. The amount of infesta- 

 tion on the bog where the sanding was done is shown in a gen- 

 eral way by the fact that on a large part of the bog the worms 

 destroyed all the berries after there had been a blossom and a 

 fruit setting which should have produced not less than 60 bar- 

 rels to the acre. As it seems probable that this sanding will also 

 have some effect on next year's infestation, the experiment will 

 be continued the coming season. 



As strictly dry hogs are usually eifher winter-hilled or badly 

 spring-frosted about every tiro or three years, it seems probahle 

 that the best treatment for this insect on such bogs uwidd be to 

 destroy the remnant of the crop in the yeai^s ivhen the severe 

 injury from eiilier frost or ivinter-hlTl occurs. Tills could, prob- 

 ably he most readily done by spraying the bloom unth a 20 per 

 cent, solution of iron sidfate. The destruction of the bloom 

 would cut off the season s local food supply for the insect, and 

 it tvoidd naturally, for the must part, die off by starvation 

 as a result. In most cases, this destruction of the bloom, after 

 its severe reduction bj' adverse w^eather conditions, will not re- 

 sult in a loss to the grower, for, if the blossoms are left and the 

 crop remnant is allowed to develop normally, the fruit worms, 

 which without the interference of weather conditions would 

 have an ample food supply, will be compelled to concentrate 

 on the remnant, with the result that there will be little or 

 nothing left at picking time anyway. 



During the season following one in which a bog's infestation 

 is starved out in this way, practically the only infestation pres- 

 ent will 1^0 that which comes in from the uplaud, and that 

 will probably not be very serious in most cases. 



Another pro1)al)le benefit from this method of treatment is 

 that coming from not tearing up the vines in picking what 

 little fruit might be left after the worms got through if the 



