在实验中，这些毛毛虫被喂食沾有转基因玉米花粉的马利筋叶子，然后它们死亡了。
When, in experiments, these caterpillars were fed milkweed leaves dusted with pollen from modified maize plants, they died.
一只沙漠蛛蜂正在吞食马利筋的花粉。
环保署估计，即使马利筋叶片上每平方公分有高达150颗的玉米花粉，昆虫食用后也没有明显的危害。
The EPA estimates that the insects face no observable harm when consuming milkweed leaves laden with up to 150 corn pollen grains per square centimeter of leaf surface.
环保署估计，即使马利筋叶片上每平方公分有高达150颗的玉米花粉，昆虫食用后也没有明显的危害。
The EPA estimates that the insects face no observable harm when consuming milkweed leaves laden with up to 150 corn pollen grains per square centimeter of leaf surface.
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