October, 15] 



TARTAR-WILSOX: ARSENATES OF LEAD 



483 



Series I 



No. 



Kind of Spray 



Applied 



April 

 24 



April 

 25 



Drop 



April , April 

 26 27 



April 

 28 



April 

 29 



Total 

 Drop 



I 



2:50 L.H.A. 



Apr. 22, 1915 



325 



46 



30 



20 



24 





445 





2:50 B.L.A. 



Apr. 22, 1915 



12 



17 



98 



48 



30 





205 



2 



2:100 L.H.A. 



Apr. 22, 1915 



56 



101 



94 



51 



39 





341 





2:100 B.L.A. 



Apr. 22, 1915 







23 



82 



57 



33 



202 



3 



2:200 L.H.A. 



Apr. 22, 1915 



46 



60 



103 



121 



33 



9 



371 





2:200 B.L.A. 



Apr. 22, 1915 





5 



6 



40 



101 



68 



220 



4 



2:400 L.H.A. 



Apr. 23, 1915 







88 



57 



104 



83 



332 





2:400 B.L.A. 



Apr. 23, 1915 







14 



42 



57 



88 



201 



5 



2:800 L.H.A. 



Apr. 23, 1915 







43 



110 



177 



88 



418 





2:800 B.L.A. 



Apr. 23, 1915 



;: 





3 



43 



108 



137 



291 



Series U 



No. 



Sprays 



Date 

 Applied 



May 

 5 



May 

 6 



7 



8 



9 



10 



11 



May 12 



May 13 



Total 



1 



AL2:50 

 L.H.A. 

 AL2:o0 

 B.LA. 



May 5 

 May 5 





21 

 3 



103 

 128 



83 

 169 



69 

 53 



36 

 201 



33 

 126 



5 



66 



2 



38 



(all dead) 



352 

 784 



2 



AL 2:100 

 L.HA. 

 AL 2:100 

 B.L.A. 



May 4 

 May 4 



9 



45 

 6 



69 

 17 



95 

 108 



3 

 19 



19 

 41 









240 

 191 



3 



AL 2:200 

 L.H.A. 

 -\L 2:200 

 B.LJi. 



May 4 

 May 4 



65 



123 

 12 



209 

 77 



118 

 139 



31 

 34 



107 

 75 



46 



20 





653 

 453 



4 



AL2:4C0 

 L.H.A. 

 AL 2:400 



May 4 



19 



77 

 5 



154 

 21 



192 

 87 



44 

 65 



85 

 42 



33 

 34 



30 





604 

 284 





B.L.A. 









(20 more or 

 less alive) 







AL 2:800 





5 



61 



106 



175 



59 



97 



30 



35 





568 



5 



L.HA. 



lAL 2:800 







3 



12 



49 



21 



36 



25 



(several 

 alive) 

 6 





152 





B.L.A. 

















AL 2:1200 







12 



36 



163 



115 



77 



42 



93 



(a few 

 alive) 

 23 





6 



L.H.A. 

 AL 2:1200 







7 



23 



44 



39 



46 



(picked off) 

 42 



561 













(picked off) 



22 



223 

 (at least 25 

 feeding on 

 first foliage) 



1 Where strengths of 1 to 1200 were used it was necessarj- to add a second set of sprayed twigs as caterpillars ate all 

 foliage on first set. 



