Aw Roger I'm gutted. I thought you had it cracked and I've mentioned your injecting on several subsequent threads even though I couldn't find this original one again. That's a b****r!
Just returned from a week away to find large area of lovely brown / black horsetail. I sprayed with Roundup after trampling the area and it seems to be working. As I mentioned earlier in the topic, I dug the entire area over last year and went through every fork full by hand to remove as much as I could. It didn't reappear until May this year. I'll repeat the Roundup if necessary and will be using the veg plot seriously again from next year. Hopefully the competition from other plants will discourage the horsetail. It was never evident when the veg plot was in regular use.
I started a battle last year, luckily mine its well established or getting very tall. They get to around 6 inches Max then crushed and glosphate squirted. Last year they grew back about month later. This year they've only just reappeared. Got about 7 indentifed patches all between inch and 6. Most of it in the lawn. When weathers better I will crush and spray again. Not winning but nor loosing either (touch wood)
Ice, do you mean that when they're 6" high you compress the stems (say with your fingers) and then spray?
How do you avoid round-up going on the grass? I took a wealth of precautions last sept 2015 to protect the lawn when injecting into stems that I had had cut to a height of an inch or so, but the grass took a bashing. Pretty sure it was the rain washing roundup traces of the stems.
Was easier in 2014 as my garden was in a building site state so I could splash the roundup around.
Yup. Mines come from a neighbours so don't think ever had loads, but I've only lived here 18 months. Some of grass took battering but the grasss is poor anyway, previous owners didn't do any gardening till they put it up on the market. We bought in Nov so no sign of horsetail then.
Last lot I crushed sprayed and sealed in a plastic sandwich bag, kept rain off and hoped excess in bag may be absorbed too. Difficult to say if winning but it's not spreading lots. Boyfriend's brothers house backs onto allotments and he got it last summer it sdpread higher and faster than mine has....
At the moment it's annoying but no worse than other weeds here
I've extracted the quote. I reckon it's 463 154 and 51ug of glyphosate, ten times more. Can somebody go through the maths to recheck.
Thanks
"Seedlings in their containers were placed individually on a rotating base, and sprayed from above with a hand operated atomizer while spinning. A piece of pre-weighed paper was placed beneath each plant to absorb and weigh any spray not intercepted by the plant. Each seedling received 0,13ml of spray. Thus individual seedlings treated with 1%, 0.33%, 0.11 % and 0% Vision@ (356 g/L glyphosate) received 46.3 15.4, 5.1 and 0.0 ug of glyphosate, respectively".
Posts
Aw Roger I'm gutted. I thought you had it cracked and I've mentioned your injecting on several subsequent threads even though I couldn't find this original one again. That's a b****r!
Just returned from a week away to find large area of lovely brown / black horsetail. I sprayed with Roundup after trampling the area and it seems to be working. As I mentioned earlier in the topic, I dug the entire area over last year and went through every fork full by hand to remove as much as I could. It didn't reappear until May this year. I'll repeat the Roundup if necessary and will be using the veg plot seriously again from next year. Hopefully the competition from other plants will discourage the horsetail. It was never evident when the veg plot was in regular use.
I started a battle last year, luckily mine its well established or getting very tall. They get to around 6 inches Max then crushed and glosphate squirted. Last year they grew back about month later. This year they've only just reappeared. Got about 7 indentifed patches all between inch and 6. Most of it in the lawn. When weathers better I will crush and spray again. Not winning but nor loosing either (touch wood)
Ice, do you mean that when they're 6" high you compress the stems (say with your fingers) and then spray?
How do you avoid round-up going on the grass? I took a wealth of precautions last sept 2015 to protect the lawn when injecting into stems that I had had cut to a height of an inch or so, but the grass took a bashing. Pretty sure it was the rain washing roundup traces of the stems.
Was easier in 2014 as my garden was in a building site state so I could splash the roundup around.
Last edited: 11 June 2016 17:36:00
Yup. Mines come from a neighbours so don't think ever had loads, but I've only lived here 18 months. Some of grass took battering but the grasss is poor anyway, previous owners didn't do any gardening till they put it up on the market. We bought in Nov so no sign of horsetail then.
Last lot I crushed sprayed and sealed in a plastic sandwich bag, kept rain off and hoped excess in bag may be absorbed too. Difficult to say if winning but it's not spreading lots. Boyfriend's brothers house backs onto allotments and he got it last summer it sdpread higher and faster than mine has....
At the moment it's annoying but no worse than other weeds here
Hi
I think there's a maths mistake in this document about treating pine tree saplings with roundup. http://www.collectionscanada.gc.ca/obj/s4/f2/dsk3/ftp04/NQ61687.pdf at the bottom of page 21
I've extracted the quote. I reckon it's 463 154 and 51ug of glyphosate, ten times more. Can somebody go through the maths to recheck.
Thanks
"Seedlings in their containers were placed individually on a rotating base, and sprayed from above with a hand operated atomizer while spinning. A piece of pre-weighed paper was placed beneath each
plant to absorb and weigh any spray not intercepted by the plant. Each seedling received 0,13ml of spray. Thus individual seedlings treated with 1%, 0.33%, 0.11 % and 0% Vision@ (356 g/L glyphosate) received 46.3 15.4, 5.1 and 0.0 ug of glyphosate, respectively".