Well I'm a worse moron because I read the instructions before buying it and used a hose end sprayer anyway, an Ortho dial-a-spray set to the rate recommended on the package. Thought I would take the chance. It dispensed half a bottle of product evenly over my front yard. No problems with clogging. I did shake the sprayer frequently to keep whatever solids are in there mixed up. The back yard I did with the same sprayer, using half a bottle of Ortho Weed B Gone Max at the recommended rate. The Bayer seems to be working a little faster but both seem to be doing the job. My weeds this year are oxalis and spurge, with a few dandelions. If you have no luck with spraying the Bayer through the hose end sprayer I would get the Weed B Gone. I can't imagine doing an acre with a pump sprayer. You will get a lot of exercise.

Yowza!!! The only statement that approaches any degree of accuracy in the above post is the one that suggests you do the research. Which the above poster has obviously not done. "Ask yourself basic logical questions like, how in the world can a toxic chemical intuitively know not to poison your tomato or your dog, but to target that bad dandelion only (for example)." The answer to that is simple and is the same principle behind the development of beneficial pharmaceuticals that target disease organisms. It's called 'mode of action' - glyphosate's mode of action is to disrupt a metabolic pathway that allows for the biosynthesis of certain amino acids. This metabolic pathway (shikimic acid pathway) is specific to plants and some microorganisms. The absence of this pathway in mammals explains the low toxicity of glyphosate to non-target organisms. "It is extremely hazardous, and it is toxic to all life" Again, a completely erroneous statement. After some 40 years of the most extensive scientific testing any pesticide has ever undergone, glyphosate is considered to be of very low toxicity and therefore is NOT considered to be "extremely hazardous". And it is obviously not "toxic to all life" - it just simply does not work that way (see above re: mode of action) and if it did, it would not be on the market. And the declaration that it is a causation for cancer is still under debate by world health authorities. First, it has never been documented that gylphosate is carcinogenic with humans - that's probably the major bone of contention with this assessment. The association was made based on very limited epidemiological studies which have been disputed by non-consistent patterns of positive associations indicating a causal relationship between total cancer or any site-specific cancer and exposure to glyphosate. The bulk of the determination was based on studies based on animal experiments submitted by the producers of glyphosate as evidence for the carcinogenic effect of glyphosate. And these findings were considered by various other agencies involved in this assessment (IMPR, FAO/WHO) who concluded that “In view of the absence of a carcinogenic potential in animals and the lack of genotoxicity in standard tests, the Meeting (IMPR) concluded that glyphosate is unlikely to pose a carcinogenic risk to humans” (does glyphosate cause cancer?) Finally, had the above poster done her research, she would be aware that glyphosate is a non-specific herbicide. It does not just target weeds nor was it intended to just target weeds. This is a basic premise of any understanding of herbicides and to bother to post without knowing this elementary fact gives no credence to the rest of her rant. Junk science will always be junk science and simply spewing back sensationalized conclusions plucked from the online press without knowledge or understanding is merely ignorant fear mongering.

Your plants will not be poisoned by the use or RoundUp, since it is sprayed lightly on the foliage of the plants that are needing to be eliminated. There is NO reason for this chemical to ever touch the soil, whatsoever. However, even the smallest amount of mist can cause damage to desirable plants. Keep an eye out on your tomatoes and others for signs. I personally feel that weeds in the veggie garden should be hand weeded and you should certainly remind him of that the next time he comes to your yard.

Depends upon various factors. Only time will tell. This is one of those live-and-learn things in gardening, right?