Re: ISU Butterfly info

Bob MacGregor (rdmacgregor@gov.pe.ca)
Wed, 26 May 1999 10:49:23 -0400

This seems to me to be just like the pesticide spray drift problem -- except that it targets lepidopterans.
Actually, all this shouldn't come as much of a surprise given that corn has been engineered to overexpress Bt toxins in hopes of getting a really good "kill" and fending off resistance development. Of course, when resistance does finally appear, it will likley be pretty robust resistance. Meanwhile, any lepidopteran (the obscure, unpopular ones as well as the big, flashy ones) that munches on Bt corn ears, leaves, roots, pollen or wherever the gene is expressed -- runs the risk of dying. Unless the GE folks find a way of limiting expression to the tissue that they want to protect, pollen mobility will continue to act like spray drift

BOB

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