Was just wondering if anyone has any experience of sppraying Jap Knotweed?
A mate has asked me to spray some for his neighbour.
I have had a bit of a google about, depending wot read/believe it can be killed if u persevre (althou 1 punter reckons he killed it with 1 spray of very strong Glycophos)
I have some undiluated Glycophospate/Clinic Ace, cannae mind wot strength it is now (but normal farmer strength concentrate). I was thinnking of diluting it far stronger than u would normally (normal 200ml to 10l, possibly 1l:10?) and i was going to wait for a bit of a dry spell so leaves will take any water in, althou i hoped to have sprayed it before now when plant is really growing but never had a decent dry spell and soil still has plenty of moisture.
Althou some advice say's best to wait till it flowers?
After the 1st spray i thought i would wait till it dies back after a month cut it and inject some Glycophos into the stem. I have been told there is a membrane about ground level that ur have to peirce to get the poison down to the roots.
Does the above make sense? Shuld i wait for a long dry spell (wether that ever happens in scottish summer time??) or should i just get on and get it sprayed the 1st dry day? Or should i wait till it flowers?
Is it worth cutting to inject the stem's? (Will not be removing any plants from the area)