Killing weeds may kill butterflies | Grist
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Killing weeds may kill butterflies | Grist
Monarch butterflies lay their eggs on milkweed, and as young caterpillars, they eat the stuff. But humans like to have neat rows of corn and soybeans, and milkweed interferes with their field aesthetics. Which is more important? Doesn’t matter; humans have thumbs, agriculture, and industrial chemistry. Thus, 100 million acres of row crops are now milkweed-free; Monarch butterflies have fewer places to stash their young; and their population may be dwindling.
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