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Japanese knotweed

your advice was to cut the stem ?? above ground, My Q1 is how low? also, to put teaspoon undiluted Roundup into each stem. Q2 should i spray the ground around the plant? i never use chemicals in my garden so i am wary of using some now. i'm unable to do this job myself so i need to give precise instructions. BOTANICAL TRYER, TERENURE, Co Dublin Posted: 23/08/2017

Cut down to 20 to 30cm.The chemical glyphosate only works on green tissue, not on the soil.



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