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Bt maize: testing insect-resistant plants in the field

Contribution grade

Crop protection biotechnology · Scoped scientific or research-capability contribution

Reference score30,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Koziel and colleagues reported field performance of maize engineered to express an insecticidal protein derived from Bacillus thuringiensis. The study linked a molecular construct with protection against a target insect in field trials.

Scientific scope

Koziel and colleagues reported field performance of maize engineered to express an insecticidal protein derived from Bacillus thuringiensis. The study linked a molecular construct with protection against a target insect in field trials. Scope limitation: This was not the first use of Bt or the first transgenic plant. The particular constructs, insect targets and field conditions matter; one trial does not establish permanent resistance management, every ecological outcome or safety of all engineered crops.

Evidence

Assessment uses the catalogue-linked source evidence for the stated contribution. This was not the first use of Bt or the first transgenic plant. The particular constructs, insect targets and field conditions matter; one trial does not establish permanent resistance management, every ecological outcome or safety of all engineered crops.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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