Home |
Search |
Today's Posts |
|
#1
|
|||
|
|||
Knotweed
On 11/07/2016 23:10, Stewart Robert Hinsley wrote:
On 09/07/2016 13:38, Janet wrote: In article , says... It will take a couple of years of treatment to fully eradicate though so don't expect to get it all in one go. I daily drove past a 'colony' and watched as it was treated for, aprox, 3 years before it was completely eliminated. Its tough stuff! Our local council has been spraying several local colonies of JKW for several yesrs. You can see the deadly effect every time they treat it, but the next year it rises from the grave again. AFAIK, in the UK climate JKW does not propagate by seed; so a colony's survival after weedkilling is not down to seed germination; it reflects the depth, extent and vigour of its root systems. My understanding is that the reason for a lack of seed propagation is not the climate but that the plants are (nearly?) all female, so they never (hardly ever) get pollinated. You do get hybrids with Russian vine and giant knotweed. But it's remarkably widespread for a plant that doesn't propagate by seed. Janet Janet It is remarkable how small a piece will regrow, even the mush on a strimmer will produce viable plants if put in a nice spot! It has become a much bigger problem down here once they started getting excited about it and lenders not giving mortgages etc, people panic, try and dig it up and fly tip it. Weed killer and persistence is the way to go -- Charlie Pridham, Gardening in Cornwall www.roselandhouse.co.uk National collections of Clematis viticella & Lapageria rosea |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Japanese knotweed pics | Gardening | |||
Japanese Knotweed (BBC1, Countryfile today) | Gardening | |||
Japanese Knotweed | United Kingdom | |||
Japanes Knotweed at Kew Gardens ? | United Kingdom | |||
Japanes Knotweed at Kew Gardens ? | United Kingdom |