Genetic crop pollution
Nature: When a genetically engineered plant reproduces itself, it may kill other plants or animals in unforeseen ways due to its modified genetic structure.
Incidence: It was reported that the pollen of corn genetically engineered for pest resistance, when dusted on the leaves of milkweed plants caused the death of 44% of monarch butterfly caterpillars feeding on the milkweed. Caterpillars feeding on pollen from unmodified plants survived. In 1999, nearly 25% of the USA corn crop contains this toxin gene.
Counter Claim: Scientists are asking why the pollen was not tested before the plants were planted on millions of acres of farmland.
Problem Type: G: Very specific problems
Date of last update 24.04.2001 – 00:00 CEST