152 



JOURNAL OF ECONMOIC ENTOMOLOGY 

 Plot VI — -Unsprayed 



[Vol. 14 



Plot VII — Sprayed 



First Spraying .... May 8 Arsenate of lead 3 lbs. ; water .50 gal. 



Second Spraying . . May 22 Arsenate of lead 3 lbs. ; water 50 gal. 



Third Spraying . . . June 26 Arsenate of lead 3 lbs. ; water 50 gal. 



Plot VIII — -Unsprayed 



No. 

 Tree 



Dropped Nuts 



Inf. 



Non. 



Nuts on 



Tree 

 Sept. 27 



Total 

 Nuts 

 Borne 



Percent. 

 Infested 



Percent. 

 Non-Inf. 



Percent, 

 on Tree 

 Sept. 27 



27 

 28 

 29 

 30 



1670 

 568 

 723 

 222 



241 

 112 

 145 



28 



46 

 12 

 58 

 40 



1957 

 692 

 926 

 290 



85% 

 82% 

 78% 

 76% 



15% 

 18% 

 22% 

 24% 



3% 



2% 



6% 



14% 



Plot X — Sprayed 



First Spraying .... May 8 Arsenate of lead 3 lbs.; water 50 gal. 



Second Spraying . . May 22 Arsenate of lead 3 lbs.; water 50 gal. 



Third Spraying . . .June 26 Arsenate of lead 3 lbs.; water 50 gal. 



Plot XI — Unsprayed 



