General Discussion
In reply to the discussion: California EPA Moves to Label Monsanto's Roundup 'Carcinogenic' [View all]PufPuf23
(9,892 posts)24D and 245T (now banned) are not very effective against monocots (grasses, conifer trees), markedly so depending on time of application.
Glyphosate targets grasses, herbaceous plants, and seedlings but is not that effective on established woody vegetation.
Montsanto developed Roundup/glyphosate and genetically engineered food crops to be Roundup resistant.
Now that the patent is ending on glyphosate, Monsanto is looking to develop a new herbicide to maintain high profit margin herbicide production.
See "Monsanto to replace Roundup with RNA altering plant spray "
http://www.examiner.com/article/monsanto-to-replace-roundup-with-rna-altering-plant-spray
Other recent articles on Roundup/glyphosate.
http://www.ewg.org/agmag/2015/09/california-moves-protect-citizens-monsanto-s-gmo-weed-killer
http://web.mit.edu/demoscience/Monsanto/about.html
I was long ago a CA Licensed Pest Control Applicator (IIRC the title correctly) while a US Forest Service employee. When I was a teen in early 1970s, worked as ground crew for helicopter spraying of Army surplus Agent Orange for "conifer release" in clearcut plantations. The USFS had a moratorium on herbicide spraying in mid 1970s then restarted the program using "new" chemicals such as glyphosate and hexazinone. I obtained the License when I was project manager of a controversial glyphosate project in 1983 (my last contact with herbicides as resigned from USFS in 1985). The county had passed a local ordinance against herbicide use in the forest and there was a lawsuit between the county and California Department of Food and Agriculture over jurisdiction; in either case, the USFS was exempt as Federal lands. The USFS initiated an epidemiological study of its employees who had exposure in 1980s and I applied but was not selected as my experience included multiple chemicals. I wonder if some of my current health problems are related but, unlike the VA, there seems to be no programs for non-military government employees that were exposed. When I was a teen involved in phenoxy application, we would bring changes of clothes and wash in the creek. Another chemical used was MSMA, an arsenate used with no protection. Before being banned, applicators had to have regular blood tests while using MSMA. By the time of the glyphosate project there was a tight protocol on applications which were essentially paramilitary operations. There were about 30 federal law enforcement officers providing security. My then wife was a water monitor in 1980(?) on the Ranger District where we had been before and came home after several days for fresh clothes etc accompanied by a Federal Marshall who would not let us be alone together because to the District Ranger I was a security risk (might slip her something to squirrel the samples, which I would never do). Then I transferred and the first thing they do is dump a herbicide project in my lap. Then I quit the USFS after 16 years and going to university for that career. Fuck Reagan.