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Environment & Energy

mike_c

(37,072 posts)

5. the Bt isn't materially different-- the exposure rate is increased....

Reply to appal_jack (Reply #4)

Sat May 23, 2015, 01:32 PM

May 2015

Development of population level resistance is a function of exposure. As far as the mixed function oxidase system for detoxification, there is no material difference between Cry proteins expressed in engineered corn and that applied topically. As you noted, there is a real difference in persistence and exposure. But Bt applied to the exterior of plants at similar dosages leads to the same resistance. It's only a matter of time.

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Who Could Have Pre-, No, Actually Worm Resistence To Bt Corn Predicted 20 Yrs Ago Is Here [View all] hatrack May 2015 OP

Nature always bats last. The Velveteen Ocelot May 2015 #1

Evolution is a constant process. We helped the corn evolve. The worms evolved in the face of a new Agnosticsherbet May 2015 #2

this is ultimately the fate of every pesticide used against insects... mike_c May 2015 #3

Nonsense, Mike. And you should know better. appal_jack May 2015 #4

the Bt isn't materially different-- the exposure rate is increased.... mike_c May 2015 #5

"Bt was used....more than 40 years without observable resistance" NickB79 May 2015 #6