knott weed

[likeitorlumpit]

Call the council, its under the notifiable weeds thing, you have to notifiy them, they should pay for someone to get rid of it for you

 

[jltree]

Its on the invasive weeds list. It is not ilegal to cut it down but is ilegal to transport it anywhere without a license. So if you strim it and send the seeds off flying your in a position of getting prosecuted. Costs network rail and construction companies millions!

[Gareth Dalzell]

Its on the invasive weeds list. It is not ilegal to cut it down but is ilegal to transport it anywhere without a license. So if you strim it and send the seeds off flying your in a position of getting prosecuted. Costs network rail and construction companies millions!

 

Generally the seed is sterile. There could be a few hybrids with viable seed about but I,ve never come across one and we specialise in knotweed control

[Weed Man]

As previously said the seeds are not the problem, I certainly would not be mowing or moving it around your site as it is spread from the stem and the rhizome root system!

 

Lots of experts in Japanese Knotweed, I would recommend the environment agency knotweed code of practice for more informed good advice!

 

[Dan Frazer Gardening]

Call the council, its under the notifiable weeds thing, you have to notifiy them, they should pay for someone to get rid of it for you

 

This is not true.

 

I suggest you buy some glyphosate and spray it whenever it appears. If there are green leaves visible then glyphosate will be effective. Plan to spray roughly every 6 weeks right through from april-october next year. You may have to treat indoors if it comes up through the foundations, just wear gloves and dab glyphosate on the leaves if so.

 

It is still a plant that undertakes photosynthesis at the end of the day and weed killers do kill it for good.

[RobRainford]

This is not true.

 

I suggest you buy some glyphosate and spray it whenever it appears. If there are green leaves visible then glyphosate will be effective. Plan to spray roughly every 6 weeks right through from april-october next year. You may have to treat indoors if it comes up through the foundations, just wear gloves and dab glyphosate on the leaves if so.

 

It is still a plant that undertakes photosynthesis at the end of the day and weed killers do kill it for good.

 

Spraying glyphosate during growing season is ineffective. It reacts to it and doesn't give the results you want. Spraying while it flowers works best, we achieve over 90% control with application in the flowering season

 

Stem injection is most effective, although it is labour intensive. We have a sprayer rig on a 600' hose reel, this is very effective at covering all the areas it is needed.

[Dan Frazer Gardening]

Spraying glyphosate during growing season is ineffective. It reacts to it and doesn't give the results you want. Spraying while it flowers works best, we achieve over 90% control with application in the flowering season

 

I find this comment very unusual...glyphosate is taken up during growth, it is translocated via water transfer through the plant, which is at it's peak during early growth. The best time to spray is on very juvenile plants when leaves are soft and growth is fast.

 

Perhaps you have sprayed in wet weather and found poor results but not linked it to the rain?

 

I don't expect many people would be happy letting you wait for the weed to flower before treating...and a continued application programme is always preferred due to the nature of the plant, not just one spray in autumn.

[RobRainford]

I find this comment very unusual...glyphosate is taken up during growth, it is translocated via water transfer through the plant, which is at it's peak during early growth. The best time to spray is on very juvenile plants when leaves are soft and growth is fast.

 

Perhaps you have sprayed in wet weather and found poor results but not linked it to the rain?

 

I don't expect many people would be happy letting you wait for the weed to flower before treating...and a continued application programme is always preferred due to the nature of the plant, not just one spray in autumn.

 

It will work for most plants in the growing season because they aren't as 'tough' as JKW

 

JKW seems to resist spraying in the growing season, we have found the best control through autumn spraying when the above ground parts are receding and dying off, as that's when it's pulling back in what it can from the rest of the plant, adding glyph to its mix has been effective for us. However, stem injection has been used during active growth and achieves a similar control rate of 90%+ and can be highly effective if all parts of the plant are injected.

 

We have dealt with a lot of knotweed and all our clients have been happy.

 

We don't say it will work 100% but we get good control rates which then allows the plant to be dealt with effectively and quickly.

[skyhuck]

It will work for most plants in the growing season because they aren't as 'tough' as JKW

 

JKW seems to resist spraying in the growing season, we have found the best control through autumn spraying when the above ground parts are receding and dying off, as that's when it's pulling back in what it can from the rest of the plant, adding glyph to its mix has been effective for us. However, stem injection has been used during active growth and achieves a similar control rate of 90%+ and can be highly effective if all parts of the plant are injected.

 

We have dealt with a lot of knotweed and all our clients have been happy.

 

We don't say it will work 100% but we get good control rates which then allows the plant to be dealt with effectively and quickly.

 

Are you saying you can achieve eradication in one year 90% of the time??

[Charlieh]

seriously do you guys all just use glyphosate

 

 

am I the only one who actually uses picloram and just sprays the foliar area, 100% kill off in one application, is it because you guys want return visits or am I missing the bigger picture