Table 1 Corrected survival (± SE) of western corn rootworm populations assayed on Cry34/35Ab1 maize during 2019.

From: Reduced susceptibility of western corn rootworm (Diabrotica virgifera virgifera LeConte) populations to Cry34/35Ab1-expressing maize in northeast Nebraska

County

Population

Cry34/35Ab1 corrected survival ± SEa

Classification of Cry34/35Ab1 resistance

Cuming

1

0.261 ± 0.07cd

Incompleteb

Cuming

2

0.211 ± 0.02d

Incomplete

Cuming

3

0.019 ± 0.01f

Susceptiblec

Cuming

4

0.519 ± 0.09ab

Incomplete

Cuming

5

0.160 ± 0.05de

Susceptible

Cuming

6

0.190 ± 0.07de

Susceptible

Cuming

7

0.560 ± 0.12ab

Incomplete

Cuming

8

0.315 ± 0.07bcd

Incomplete

Cuming

9

0.133 ± 0.05def

Susceptible

Cuming

10

0.306 ± 0.05bcd

Incomplete

Cuming

11

0.656 ± 0.09a

Incomplete

Stanton

12

0.429 ± 0.08abc

Incomplete

Colfax

13

0.455 ± 0.06ab

Incomplete

Saunders

14

0.086 ± 0.04ef

Susceptible

Susceptible laboratory control

LAB-S

0.065 ± 0.01ef

X

  1. aCorrected survival values followed by the same lowercase are not significantly different (p > 0.05); bincomplete resistance criteria: (1) significantly greater survival on Cry34/35Ab1 maize compared to the LAB-S control, and (2) within a population, proportional survival and/or larval development was significantly lower on Cry34/35Ab1 maize relative to non-RW Bt maize; csusceptible criteria: no difference in survival on Cry34/35Ab1 maize compared to the LAB-S control.
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