GRAPE-BERRY MOTH IN NORTHERN OHIO. 
T>ble I. — Time of leaving graces of first-brood larvx of the grape-berry moth 
Fruit collected at Venice, Put-in-Bay, and Kelley's Island, Ohio. 
in 1916. 
Date of leaving fruit. 
Number 
of larvae. 
Date of leaving fruit. 
Number 
of larvae. 
June 28 
1 
1 
1 
3 
1 
3 
5 
6 
4 
4 
22 
63 
28 
32 
163 
349 
151 
316 
376 
425 
346 
398 
381 
164 
July 26 
142 
29 
27 
139 
July 2 
28 
95 
29 
8 
30 
28 
6 
31 
35 
7 
27 
8 
3 
8 
9 
5 
10 
10 
6 
73 
12 
7. . 
70 
13 . 
8 
60 
14 
9 
59 
15 
10 
18 
16 
11 
12 
17 
12 
11 
18... 
13 
29 
19 
14 
22 
20 
15 
12 
21 
16 
4 
22 
17 
6 
23 
18 14 
24 
Total 
25 
4,125 
LENGTH OF TIME OF FIRST-BROOD INDIVIDUALS IN THE COCOON. 
The time of cocooning and length of time in the cocoon for 38 
individuals observed are shown in Table II. The maximum time is 
19 days, the minimum 9 days, and the average 11.7 days. 
Table II. — Time of cocooning and the length of time in cocoon of the first brood of the 
grape-berry moth at Sandusky, Ohio, in 1916. 
Number of larvs, 1 1| j-™ _ 
Moths 
emerged. 
Days in 
in cocoon. 
Total. 
Larvae collected at— 
1 1 June28.. 
1 ...do 
1 | July 2... 
1 July 4... 
2 |. ..do.... 
1 i July 5... 
1 1 July 6... 
1 '...do.... 
1 ...do.... 
1 July 7... 
1 ...do.... 
1 do.... 
July 11.. 
July 12.. 
...do 
July 14.. 
July 15.. 
July 16.. 
...do 
July 18.. 
July 25.. 
July 17.. 
July 19.. 
...do.... 
July 21.. 
...do 
July 24.. 
...do 
July 25.. 
July 26.. 
Average. 
Maxi- 
mum.. 
Mini- 
mum.. 
13 
13 
10 
10 
11 
15 
10 
13 
19 
10 
12 
12 
14 
9 
11 
11 
12 
13 
13 
13 
10 
10 
22 
15 
10 
13 
19 
10 
12 
12 
84 
45 
11 
110 
24 
13 
Put-in-Bay, Ohio. 
Do. 
Venice, Ohio. 
Do. 
Do. 
Do. 
Kelley's Island, Ohio. 
Do. 
Do. 
Do. 
Venice, Ohio. 
Kelley's Island, Ohio. 
Do 
5 1 July 12.. 
1 July 13.. 
10 ...do.... 
2 do.. 
Do. 
Do. 
Venice, Ohio. 
Do 
1 dn 
Do 
38 
11.7 
19 
9 
TIME OF EMERGENCE OF FIRST-BROOD MOTHS. 
The material for securing emergence records of first-brood moths 
included the larvae collected beginning June 20 and shown in Tables 
I and II, and pupae collected in the field at frequent intervals. It 
will be seen in Table III and figure 1 that moths began to emerge 
July 11 and continued until August 31, with the greatest number on 
August 3. A large part, 63 per cent, of this emergence came within 
the 11-day period, July 27 to August 6. 
