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- klass ditches
off to avoid picking up trash, but by the end of the day, we all were in the ditch, in the mud and ...
roadside ditches, stream banks, vacant farmland, and along tree lines. In the United States, it is known to ...
ditches through wind dispersal. Since 2005, we have been investigating the risk potential for exposure ... agricultural streams (or ditches) that have not been exposed to Bt crops, and then introduce Bt and non-Bt corn ...