E.i. Dupont De Nemours and Company

Pioneer Hi-bred International, Inc.

Corteva Agriscience LLC

Bruce H Stanley

Timothy M Nowatzki

Stephen D Thompson

Rachel R Binning

Stephen A Lefko

Deanne L Wright

Fu-Chih Cheng

John Lindsey Flexner

Deirdre M Kapka-Kitzman

Jianzhou Zhao

Lisa Procyk

Bo Hong

A method is provided for evaluating a protected plant having a protection mechanism. A population of immature insects (i.e., larvae or nymphs) belonging to an insect species having a plurality of instars is first exposed to the protected plant such that the protected plant is at least contacted thereby. The insect exposure extends for a selected time period corresponding to a sublethal exposure of the insect population to the protected plant. The exposure of the insect population to the protected plant is then halted following the selected time period and insects collected. A physical characteristic of at least some collected insects is measured. The measured physical characteristics are then statistically analyzed so as to determine an efficacy of the protection mechanism of the protected plant with respect to the insect population. Associated methods are also provided.

Method of evaluating plant protection

Embodiments of the present invention relate to insecticidalCry1 and Cry2 polypeptides. Methods for using the polypeptides and nucleic acids of embodiments of the invention to synergistically enhance resistance of plants to insect predation are encompassed in embodiments of the present invention.

Protein mixtures for maize insect control

A method is provided for evaluating a protected plant having a protection mechanism. A population of immature insects (i.e., larvae or nymphs) belonging to an insect species having a plurality of instars is first exposed to the protected plant such that the protected plant is at least contacted thereby. The insect exposure extends for a selected time period corresponding to a sublethal exposure of the insect population to the protected plant. The exposure of the insect population to the protected plant is then halted following the selected time period and insects collected. A physical characteristic of at least some collected insects is measured and the immature insects are then sorted into instars. The measured physical characteristics are then statistically analyzed across the instars so as to determine an efficacy of the protection mechanism of the protected plant with respect to the insect population. Associated methods are also provided.

Growing community of inventors

Wilmington, DE, United States of America

Bruce H Stanley