originated 2 May 2002:

Christos Vasilikiotis, Ph.D.,
University of California, Berkeley
Dept. of Environmental Science,
Policy & Management Division of Insect Biology
This email address is being protected from spambots. You need JavaScript enabled to view it.
http://www.CNR.Berkeley.EDU/~christos/

I do not know if the following patent is funny or scary.

Monsanto has been planning since 1999 for the appearance of Roundup-tolerant weeds so that they can now sell two or more herbicides to farmers who became hooked on Roundup Ready crops.

Pesticide treadmill all over again from one of the masters!

One must be very naive to believe that Monsanto would be promoting a reduction in herbicide use. Their only motive is profit, so they developed Roundup Ready crops to increase herbicide use as much as possible.

united states patent, 6,239,072, owner mons.

http://patft.uspto.gov/netacgi/nph-
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or try http://www.uspto.gov/patft/index.html
and search for patent 6,239,072.

SUMMARY OF THE INVENTION
In one embodiment, the present invention is directed to tank mixtures and premixtures of a glyphosate herbicide with at least one other non-glyphosate herbicide. In another embodiment, the present invention is directed to a method of controlling a volunteer species in a field of a crop species, comprising applying at least two herbicides in any order or simultaneously, wherein the volunteer species is controlled by at least one of the herbicides and the crop species is tolerant to all of the herbicides. Preferably, the method uses a glyphosate herbicide and a non-glyphosate herbicide for control of both glyphosate-susceptible weeds and plants of glyphosate-tolerant volunteer species in a field of a glyphosate-tolerant crop species. The non-glyphosate herbicide is one that controls the glyphosate-tolerant volunteer species and is non-toxic to the glyphosate-tolerant crop species. More preferably, the non-glyphosate herbicide is an ACCase inhibitor or an AHAS inhibitor, the glyphosate-tolerant volunteer species is corn, and the glyphosate-tolerant crop species is soybean, canola, sugarbeet, or cotton. Exemplary non-glyphosate herbicides include, but are not limited to, sethoxydim, clethodim, quizalofop, fluazifop, fenoxaprop, and imazamox.
 
 "7. a method for controlling glyphosate-susceptible weeds and a glyphosate-tolerant first plant species growing in a crop of a glyphosate-tolerant second plant species, comprising:
 
first applying a non-glyphosate herbicide to the crop of the glyphosate-tolerant second plant species, the non-glyphosate herbicide being toxic to the first plant species and non-toxic to the second plant species, at a rate of application sufficient to control the first plant species; and,
 
second applying a glyphosate herbicide to the crop of the glyphosate-tolerant second plant species at a rate of application sufficient to control the glyphosate-susceptible weeds, wherein the first applying and the second applying steps can be performed in either order or simultaneously."

so essentially the patents say, that if glyphosate-resistant species are showing up in your field, you can control them with another herbicide than glyphosate and wonder over wonders: you can do that either by spraying the other herbicide

  a)  before the glyphosate application
  b)  simultaneously with glyphosate or
  c)  after the glyphosate application

the world is full of geniuses !!!!