The European Food Safety Authority (EFSA) has reported a positive scientific opinion of Bayer’s drought & herbicide-tolerant and insect-resistant DAS 59122 x MON 87411 x MON 87427 x MON 87460 x MON 89034 x TC1507 genetically modified (GM) maize and its different sub-combinations for food and feed uses. The six-event stack maize was produced by conventional crossing to combine six single maize events: MON 87427 expressing the CP4 EPSPS gene to confer tolerance to glyphosate‐containing herbicides; MON 87460 expressing the gene for cold shock protein B (CspB) (to confer drought tolerance); MON 89034 expressing the Cry1A.105 and Cry2Ab2 genes (for protection against certain lepidopteran pests); TC1507 expressing the Cry1F gene (for protection against certain lepidopteran pests) and the PAT gene (for tolerance to glufosinate‐ammonium‐containing herbicides); MON 87411 expressing the Cry3Bb1 gene and the DvSnf7 dsRNA (for protection against certain coleopteran pests) and the CP4 EPSPS gene (for tolerance to glyphosate‐containing herbicides); and DAS 59122 expressing the Cry34Ab1 and Cry35Ab1 genes (for protection against certain coleopteran pests) and the PAT gene.

The latest review, undertaken by the GMO Panel, has concluded that the six-event stack maize and its sub-combinations are as safe as and nutritionally equivalent to the non-GM comparator and the non-GM reference varieties tested. The trait stack has already gained import approval in other countries including Mexico, South Africa, South Korea and Taiwan.