234 



Maine Agricultural Experiment Station. 1917. 



garden and on 33 bushes in six dooryards, but on 9 bushes in 

 one garden the same amount of arsenate of lead mixed with 

 water without the molasses was used. The insecticide was 

 applied with a bucket pump, provided with a Bordeaux nozzle. 

 The following proportions of the ingredients were used : 



Molasses • 



"-A pt. 



Arsenate of lead (paste) 



2 oz. 



Water 



1 gal 



Eight applications of the poisoned bait were made during 

 the season. After a rain and as soon as the weather became 

 settled, the insecticide was renewed. The number of gallons 

 of the poisoned sweet used in each application of the spray on 

 100 bushes in the commercial garden, on 33 bushes in the six 

 neighboring dooryards and on 9 bushes in the garden treated 

 with arsenate of lead without molasses is shown in table 29. 

 The data on the precipitation were copied from the weatiier 

 bureau reports taken at the University of Maine. 



TABLE 29. 



Quantity of Poisoned Bait Used, Dates of Applications of Spray 

 and Weather Records. 



Quantity of poisoned bait 







^§.5 







a „ 











Commerci 

 garden 

 100 bushef 



(gal.) 





s-s 



i 





C3 § p 2 



re's 



■ftH 

 ■30 



^1 



6 



3 2 





May 29 



1 



May 30 

















June 1 



.11 



3 



2 



2 





June 2 



2 



4 



..91 



6 



3 



2 





5 





5 



1,20 



3 



2 



2 





6 



1 



7 

 8 



.14 



4 



3 



2 





10 





10 

 12 



.10 



3 



2 



2 





13 





13 

 15 

 16 



.96 



3 



2 



2 





17 



2 



19 



20 



.55 



3 



2 2 





22 



7 



29 



.34 



31 



19 16 







13 







— Indicates a trace of rain. 



