Hey guys
I know this is an old post.
But i have to share this.
No insectisides except maybe roundup works as ridiculously well as coarse salt.
Be carefull not to throw it to close to your valuable plants you want to protect though.
Here in SA we have an extreme variety of bugs and pesty weeds that bug crops, my grandfather was a farmer for many years and he told me one day, for a small garden for your house if you don't want to use insectisides , use coarse salt, it drives away bugs ,slugs and all manner of critters and it kills weeds!
Low and behold, coarse salt works like a bomb.
On a side note, chickens in a moveable coop seem to bug them enough so they vacate.
In case you want to kill a patch of grass and no longer want anything to grow in that spot-on paving for example,around your fence for ground clearance and safety this also works well.... use Jeyece fluid
We clean our cement floor in our washroom with a bucket full of water and a few dabs of jeyes fluid, when we keep our dogs indoors, gets rid of odd smells and so on afterwards aswell.(Do not keep your dogs indoors when cleaning with it-not advised)
Well that is my 5cents worth on the subject