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Table 6. Economic injury levels based on
the number of corn earworm and fall armyworm larvae per sorghum panicle. |
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|
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Control cost ($) per hectare |
Crop
market value ($) per hectare |
250 |
300 |
350 |
400 |
450 |
500 |
550 |
600 |
650 |
700 |
750 |
15 |
1.5 |
1.3 |
1.1 |
0.9 |
0.8 |
0.8 |
0.7 |
0.6 |
0.6 |
0.5 |
0.5 |
20 |
2.0 |
1.7 |
1.4 |
1.2 |
1.1 |
1.0 |
0.9 |
0.8 |
0.7 |
0.6 |
0.6 |
25 |
2.5 |
2.1 |
1.8 |
1.6 |
1.4 |
1.2 |
1.1 |
1.0 |
0.8 |
0.7 |
0.7 |
30 |
3.0 |
2.6 |
2.3 |
2.0 |
1.7 |
1.5 |
1.3 |
1.2 |
1.0 |
0.9 |
0.8 |
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Department of Entomology | Texas A&M University |
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© 1999 Teetes and Pendleton. Unauthorized reproduction and distribution prohibited. |
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