Source of Variation

SS

df

MS

F

P-value

F crit

Aphid

Years

31.857

2

15.929

4.220

0.026

3.369

Weeks

102.000

13

7.846

2.079

0.054

2.119

Error

98.143

26

3.775

Total

232.000

41

Army worm

Years

8.048

2

4.024

4.493

0.021

3.369

Weeks

11.643

13

0.896

1.000

0.479

2.119

Error

23.286

26

0.896

Total

42.976

41