96 



N. H. AGR. EXPERIMENT STATION. 



[BuUetin 171 



Applications made with bucket pump. Four quarts of material 

 used for each. Fifty-five flies released beneath tree July 1. 

 Results: drops examined, 183; total punctures, 169; proportion 

 free from punctures, 46.4 per cent; picked examined, 352; total 

 punctures, 213; proportion free from punctures, 59. per cent. 



Season of 1913. 8. Variety, Porter. Location, Chart 3, Tree 

 5. Fruit somewhat infested in 1912, and apples lay on ground^ 



4 



r— 1.5 



• • 



ii 



• • 



.7 



• 8 



• 10 



Chart 3. Location of trees in poison bait spraying. Tree 5 sprayed Per. 

 ter, experiment 8; tree 6, check Porter, experiment 9. Scale, 1 inch = 60 feet. 



1. Mcintosh. 6. Porter. 



2. Mcintosh. 7. 



3. Wealthy. S. 



4. Russet, variety unknown. 9. 



5. Porter. 10. 



Nonesuch. 



Gravenstein. 



Gravenstein. 



Winter, variety unknown. 



11. Orchard, about all Baldwins. 



but chickens ran under tree. Formula, arsenate of lead 1 ounce, 

 molasses 1 quart, water 4 quarts. Five applications made, July 

 9, 12,25, August 6, 14. AppHcations were made with a hand pump. 

 The amount of material used was 7| quarts for each of the first 

 three applications, 5 for the fourth and 4 for the fifth. All drops 

 were recorded and all remaining fruit picked and recorded. 

 Results: total drops, 762; total egg punctures, 1,007; propor- 

 tion free from punctures, 39.3 per cent; total picked, 940; total 

 punctures, 370; proportion free from punctures, 74.7 per cent. 



