Table 7a.--Prediction of early hatching of Melanoplus sanguinipes as to dates 
when 0 to 100 percent will have hatched 
Current 
Average average Effect of 
5-day maximum maximum 1-degree 
interval temperature ¢ temperature deviation {Sum of }Hatchin 
a(t-t) aareee 
: Days 
March 2-6---- .0 0.284 
7-ll---- .0 .082 
12-16----1 39F3 re (05 iL 
17-21---- DEAS} - .073 
22-26----| 65.5 - .066 
27-31---- wk - .028 
April 1-5---- .0 .018 
6-10---- 4 -055 | 
=== 2 061 
16-20---- ou .017 
21-25---- atl - .098 
26-30---- Ay? - .304 
May 1-5---- oe - .620 
6-10---- 6 -1.067 
1/ Results of column 6, sum of a(t-t), added to or subtracted from 
dates in table 7b when O to 100 percent will have hatched. 
Table 7b.--Average and predicted hatching dates for Melanoplus sanguinipes 
(early hatching) when 0 to 100 percent will have hatched 
Predicted date 
Sits = 
