546 



NEW YORK STATE MUSEUM 



EXPERIMENTS WITH 



DATE 



PARIS GREKN, 1 LB. tO 100 GAL. 

 35 GR. TO 2 QTS (1) 



LONDON- PURPLE, 1 LB. TO 100 GAL. 

 35 GR. TO 2 QTS (2) 



PARAGRENE, 1 LB. TO 100 GAL. 

 35 GR. TO 3 QTS (3) 



1899 

 My 4 



Leaves sprayed about 4.45 

 p. m. 



Leaves sprayed about 4.45 

 p. m. 



Leaves sprayed about 4.45 

 p. m. 



5 



A number of holes have al- 

 ready been eaten In the 

 leaves. 



Beetles apparently have eaten 

 nothing. 



A few beetles on the leaves 

 but no signs of feeding. 



S 



Beetles have fed quite a 

 little, spray nearly dry. 



Beetles have not fed so much 

 as in no. 1, leaves wet with 

 spray. 



Beetles have fed little, spray 

 nearly dry. 



7 



Beetles feeding freely, one 

 on its back and just alive, 

 spray has dried. 



Beetles have apparently fed 

 but little, 2 dead, spray has 

 dried. 



Beetles fed some, spray dry. 

 Leaves eaten less than in 

 either no. 1 or 2. 



8 



3.55 

 p.m. 



Beetles feeding rather freely, 

 1 dead. 



More foliage was eaten than 

 in other cages with poi- 

 soned leaves. 1 nearly 

 dead, but 8 found. Fresh 

 leaves supplied. 



3 dead, but little eaten appar- 

 ently. 



Very little of the old foliage 

 eaten, beetles possibly may 

 have died from other causes 

 than poison. Fresh leaves 

 supplied. 



1 dead, leaves apparently 

 ^aten but little. 



Old leaves eaten but little. 

 Fresh leaves supplied. 



9 



Considerable eaten, 2 dead, 1 

 nearly so. 



Beetles feeding considerably. 



Considerable eaten. 



10 

 1.30 

 p.m. 



4 dead, remainder feeding 

 freely. 



2 dead, others feeding freely. 



3 dead, others still feeding. 



11 



1 dead, remaining one on 

 leaf. 



1 nearly dead. 



2 dead, 3 nearly so. 



12 



1 dead. 



3 dead. 



4 dead. 



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18 









