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Posted by Knottyproblemsolver (U14917232) on Thursday, 23rd June 2011
Did you see the the very informative Wonder of Weeds on ´óÏó´«Ã½ 4 last night? Also available in ´óÏó´«Ã½ i player. Well worth watching and the photography of Japanese Knotweed was fantastic and shows really well the problems and damage caused by the introduction of non native plant species.
Yes and I thought it was a cleverly filmed and informative programme. The problems these overseas introductions, with the best of intentions but perhaps somewhat naive or commercial in hindsight, is a message for future bright ideas and not only for plants but animals as well.
It clashed with The Apprentice, so I've just watched it on iPlayer ( ).
I thought this was a very good program. The subject matter was interesting throughout ,and highly relevant to everyone who has a garden, more relevant than most of the other programs in the Botany series.
I'm not normally a fan of Chris Collins, but he caught my attention right at the start with his tale about Bittercress. My garden used to be full of that stuff, but I have eradicated it, through years of diligent hand-weeding.
I would take issue with the definition 'a weed is a plant in the wrong place'. In fact, a weed is a plant in the RIGHT place. A weed is very often exactly that plant, selected by nature, which will grow best in a particular spot.
It's repeated on ´óÏó´«Ã½4
Welshcol, If we didn't introduce plants from overseas we wouldn't have most of the plants in our gardens.
We would have gardens of 'weeds'.
It is barely a handful of plants that got out of hand.
I agree Pennylan sue.
there are only a few that have caused any problems. Insects aren't bothered-The classification of plant families is based on the flower structure. if the insect has evolved to seek out that family and feed from that flower shape, then they arent that fussy. I know there are specialists but these are mostyly in tropical not temperate ecosystems.
If you look at the distribution of plant families you can see in many cases which super continent they originated from.
Thats if we believe in the facts and not the prejudice against non natives.
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