REPORT OF STATE ENTOMOLOGIST 1899 547 
ELM LEAF BEETLE 

LEAD ARSENATE, 11 OZ. LEAD 
ACETATE, 4 OZ. SODA ARSEN- 
ATE TO 40 GAL. 
60 GR. LEAD ACETATE, 22 GR. 
SODA ARSENATE TO 2 QTS (4) 
LEAD ARSENATE, 11 OZ. LEAD 
ACETATE, 4 OZ. SODA ARSENATE 
TO 80 GAL. 
30 GR. LEAD ACETATE, 11 GR. 
SODA ARSENATE TO 2 QTS (5) 

CHECK CAGE FREE FROM POISON 
(6) 
Leaves sprayed about 4.45 p. m.| Leaves sprayed about 4.45 p.m. | Leaves sprayed about 4.45 p.m. 
Leaves eaten about as much as 
in no.5. Most of the beetles 
on the leaves. 
Beetles feeding considerably. 
1 lot of eggs, spray dry. 
Beetles feeding readily, 3 loose 
eggs on bottom of jar. 
Leaves eaten considerably, 
rather dry. 
Old leaves removed and ex- 
amination shows that they 
have been eaten but little. 
Fresh leaves supplied. 
Considerable eaten. 
1 dead, others on foliage,which 
has wilted. Leaves eaten 
considerably, fresh supplied 
at4 p.m. 

Leaves eaten considerably, 
beetles all on the foliage. 
1 dead, others appear sick. 
Considerable eaten, 
2 dead, 2 nearly so. Leaves 
eaten considerably. Fresh 
food supplied at 5 p. m. 

1 dead, 2 nearly so. Leaves 
eaten some at 3.30 p. m. 

2 dead. 
1 dead. 


1 practically dead. 

A little more feeding has been 
done than in no. 1 and more 
beetles are on the leaves. 

Beetles feeding considerably 
not quite as much as in no. 
), leaves still wet in places. 
Beetles feeding considerably 
(little less than in no. 4); 
spray has dried. 
Leaves eaten considerably, 
food becoming dry. 
Fresh leaves supplied. An ex- 
amination of the foliage 
shows that a relatively small 
proportion of the old was 
eaten. 
Beetles have eaten more than 
in no. 1-4. 
Beetles have eaten considera- 
bl 
e. 
Fresh food supplied at 4 p.m. 
2 nearly dead, others feeding 
some. 

3 dead, 3 nearly so, others 
feeding. 

2 dead, 1 nearly so. Foliage 
apparently not eaten much. 
Fresh food supplied at 5 p. m,, 
but 3 beetles. 

1 dead, 1 apparently sick, but 
little feeding at 3.30 p.m. 
1 nearly dead. 
1 dead. 
Last one sickly. 
1 dead. 




The beetles ate considerably 
more than any on poisoned 
leaves. As thesprayed foliage 
is still wet, this has probably 
discouraged feeding. 

Beetles feeding readily. Have 
eaten considerably more than 
in other lots. 

Beetles feeding much more- 
than those on poisoned foli- 
age. 

Leaves much more eaten than 
those poisoned. 
Beetles eating much more than 
in no. 1-5. 

Beetles eating much more than 
in no. 14 and rather more 
than no. 5. But 9 beetles, 
fresh food supplied at 3.15, 3 
egg clusters containing about 
60 eggs found. 
Beetles feeding some on fresh 
foliage. 

Beetles feeding freely, 1 clus- 
ter of eggs. 

1 dead. Food in bad econdi- 
tion, as they had received 
no fresh leaves since the 10th. 

