SOLUBLE POISONS IN THE POISONED BAIT SPRAY. 



159 



the tree. In 191 5, the fruit fly remedy was applied to the trunk, 

 large limbs and foliage of the lower branches. The man faced 

 the trunk of the tree and applied the bait, then he turned his 

 back toward the trunk, walked around in a circle and at the 

 same time forced the poisoned sweet from the pump over the 

 large limbs and foliage of the lower branches. Those droplets 

 which strike the foliage adhere for the most part to the lower 

 surface of the leaves, where rains are not so apt to wash off 

 the spray. 



The following table shows the dates of the applications of 

 the poisoned bait and the number of gallons of spray material 

 used in the various orchards and the residential district in 

 I9I5- 



Dates of Applications of Spray and Number of Gallons Used 



in 19 1 5. 



Dates op 

 Applications 



Number of trees in orchards. 



Residential 

 district. 



Total 



of Spray. 



84 



31 



40 



57 



47 



38 



274 



gallons. 



July 16 















12 



12 



19 ' 



14 



4 



7 



7 



5 







20 









21 











4 

 3 



26 



67 





12 



3 



3 



6 



6 





4 



27 



60 



16 



3 



3 



6 









19 





4 



26 





20 



12 









5 



59 



















38 



10 



13 



19 



16 



11 



91 



198 



Spray injury from Poisoned Bait. The orchards containing 

 31 and 40 trees were sprayed with eleven gallons of the bait in 

 the first application, but in the second and third treatments the 

 amount of spray material was reduced to six gallons. Tent- 

 caterpillars had practically stripped the leaves from some trees, 

 while others were partially defoliated, and as the partly de- 

 voured leaves dropped very readily due to the scalding of the 

 soluble poison in the diluted molasses, it was deemed advisable 

 to reduce the amount of spray material in the second and 

 third baitings. 



In 1914, a number of complaints were made on account of 

 the scorching of some of the leaves, which later turned yellow 

 and finally dropped from the trees. In some of the dooryards 



