Using any sort of toxic substance in an area intended to grow food is a bad idea. In most areas of the country, stump grinding services are available. The machines used can turn even large stumps into a pile of chips. They are powerful enough to take the stump down to several inches below the soil surface.

and fill the trunk with poison

==>>> the problem with this sentence is the FILL THE TRUNK ...

round up or stump killer need only be applied to the cambian layer.. which is the green edge just under the bark ... minimal use is all that is required ...

i would call the 800 number on any product and discuss your concerns ... with the professionals ... as compared to a bunch of strangers ....

used properly.. according to the label ... .. most likely ... not an issue ..... subject to their opinion .. not mine ...

extreme overuse.. is probably always an issue ...

note all the caveats ....

ken

https://www.google.com/search?q=cambian+layer&ie=utf-8&oe=utf-8

A lot depends on how close the tree is to her vegetables. I'm not particularly sure how close is too close, but it's better to be safe than sorry. I would agree with the first comment in that she should try using a stump grinder. Most tree removal services include a stump grinding service, so that's definitely something she could look into. Thanks for the post, Vidyaa! http://www.genestreeservice.com/Services.html

But the fact remains that a properly-applied herbicide would in no way transmigrate into her veggies. It doesn't work that way. Like Ken said, a tiny amount of glyphosate, triclopyr, or perhaps other appropriate herbicide, daubed on the trunk-and then, only where the cambium layer is-would not only be a minimal amount of chemical, it would have no means of affecting any other plants on her property.

+oM

only eucalyptus here is dead, dried and for a price. Does it sucker from roots? If not, grind it low, apply round up or not, but heap soil on it. It will decay more rapidly, which is to say it will take some years, not many many years.