| Hybrid . | Bt trait package . | Corn earworm larvae/eare . | Percent damaged earsi . | |||
|---|---|---|---|---|---|---|
| Smallf,i . | Mediumg . | Largeh,i . | Totali . | R3, 1 Jul . | ||
| Dekalb DKC6770 | — | 0.4cd | 0.8bc | 5.5a | 7.3a | 72.3a |
| Dekalb DKC6772 | VT Double Proa | 5.8a | 2.3ab | 0.3c | 9.7a | 35.3a |
| Dekalb DKC6599 | Treceptab | 0.0d | 0.0c | 0.0c | 0.0b | 0.8b |
| Pioneer P1870R | — | 1.9bc | 2.3ab | 4.2a | 10.7a | 90.0a |
| Pioneer P1870YHR | Optimum Intrasectc | 3.2ab | 4.7a | 1.2b | 10.3a | 67.7a |
| Pioneer P2089VYHR | Optimum Leptrad | 0.0d | 0.2c | 0.0c | 0.3b | 0.8b |
| P > F | <0.01 | 0.02 | <0.01 | <0.01 | <0.01 | |
| Hybrid . | Bt trait package . | Corn earworm larvae/eare . | Percent damaged earsi . | |||
|---|---|---|---|---|---|---|
| Smallf,i . | Mediumg . | Largeh,i . | Totali . | R3, 1 Jul . | ||
| Dekalb DKC6770 | — | 0.4cd | 0.8bc | 5.5a | 7.3a | 72.3a |
| Dekalb DKC6772 | VT Double Proa | 5.8a | 2.3ab | 0.3c | 9.7a | 35.3a |
| Dekalb DKC6599 | Treceptab | 0.0d | 0.0c | 0.0c | 0.0b | 0.8b |
| Pioneer P1870R | — | 1.9bc | 2.3ab | 4.2a | 10.7a | 90.0a |
| Pioneer P1870YHR | Optimum Intrasectc | 3.2ab | 4.7a | 1.2b | 10.3a | 67.7a |
| Pioneer P2089VYHR | Optimum Leptrad | 0.0d | 0.2c | 0.0c | 0.3b | 0.8b |
| P > F | <0.01 | 0.02 | <0.01 | <0.01 | <0.01 | |
Means within columns followed by a common letter are not significantly different (P ≤ 0.05, FPLSD).
VT Double Pro expresses the Cry1A.105 and Cry2Ab2 proteins.
Trecepta expresses the Cry1A.105, Cry2Ab2, and Vip3A proteins.
Optimum Intrasect expresses the Cry1F and Cry1Ab proteins.
Optimum Leptra express the Cry1F, Cry1Ab, and Vip3A proteins.
Larval densities determined on 1 Jul during the R3 growth stage.
Small = first and second instar larvae.
Medium = third and fourth instar larvae.
Large = fifth and sixth instar larvae.
Log(x + 1) transformed data used for analysis, nontransformed means presented in table.
| Hybrid . | Bt trait package . | Corn earworm larvae/eare . | Percent damaged earsi . | |||
|---|---|---|---|---|---|---|
| Smallf,i . | Mediumg . | Largeh,i . | Totali . | R3, 1 Jul . | ||
| Dekalb DKC6770 | — | 0.4cd | 0.8bc | 5.5a | 7.3a | 72.3a |
| Dekalb DKC6772 | VT Double Proa | 5.8a | 2.3ab | 0.3c | 9.7a | 35.3a |
| Dekalb DKC6599 | Treceptab | 0.0d | 0.0c | 0.0c | 0.0b | 0.8b |
| Pioneer P1870R | — | 1.9bc | 2.3ab | 4.2a | 10.7a | 90.0a |
| Pioneer P1870YHR | Optimum Intrasectc | 3.2ab | 4.7a | 1.2b | 10.3a | 67.7a |
| Pioneer P2089VYHR | Optimum Leptrad | 0.0d | 0.2c | 0.0c | 0.3b | 0.8b |
| P > F | <0.01 | 0.02 | <0.01 | <0.01 | <0.01 | |
| Hybrid . | Bt trait package . | Corn earworm larvae/eare . | Percent damaged earsi . | |||
|---|---|---|---|---|---|---|
| Smallf,i . | Mediumg . | Largeh,i . | Totali . | R3, 1 Jul . | ||
| Dekalb DKC6770 | — | 0.4cd | 0.8bc | 5.5a | 7.3a | 72.3a |
| Dekalb DKC6772 | VT Double Proa | 5.8a | 2.3ab | 0.3c | 9.7a | 35.3a |
| Dekalb DKC6599 | Treceptab | 0.0d | 0.0c | 0.0c | 0.0b | 0.8b |
| Pioneer P1870R | — | 1.9bc | 2.3ab | 4.2a | 10.7a | 90.0a |
| Pioneer P1870YHR | Optimum Intrasectc | 3.2ab | 4.7a | 1.2b | 10.3a | 67.7a |
| Pioneer P2089VYHR | Optimum Leptrad | 0.0d | 0.2c | 0.0c | 0.3b | 0.8b |
| P > F | <0.01 | 0.02 | <0.01 | <0.01 | <0.01 | |
Means within columns followed by a common letter are not significantly different (P ≤ 0.05, FPLSD).
VT Double Pro expresses the Cry1A.105 and Cry2Ab2 proteins.
Trecepta expresses the Cry1A.105, Cry2Ab2, and Vip3A proteins.
Optimum Intrasect expresses the Cry1F and Cry1Ab proteins.
Optimum Leptra express the Cry1F, Cry1Ab, and Vip3A proteins.
Larval densities determined on 1 Jul during the R3 growth stage.
Small = first and second instar larvae.
Medium = third and fourth instar larvae.
Large = fifth and sixth instar larvae.
Log(x + 1) transformed data used for analysis, nontransformed means presented in table.
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