Area-wide IPM Model:
Asynchronous
Synchronous
Infestation starts:
All Over
At Center
Fields:
5 x 5
10 x 10
20 x 20
40 x 40
50 x 50
100 x 100
grid
Days:
10
20
50
100
200
500
1000
in season
Population Threshold
for Spraying:
1000
10000
100000
1000000
10000000
100000000
Mean growth
g
:
0.01
0.025
0.05
0.1
0.2
0.3
0.4
0.5
SD =
g
*X, X=
0
0.1
0.2
0.25
0.333
Dispersal
Proportion:
0.01
0.025
0.05
0.1
0.2
0.3
0.4
0.5
% Fallow Fields:
0
5
10
15
20
30
40
50
Run:
© 2004 by John A. Byers
color
b/w