welcome

Welcome to the Scottish Invasives blog. Invasive non-native species (or INNS) are plants and animals that have been introduced to areas outside their natural range. INNS are currently recognised as one of the greatest threats to biodiversity. The Scottish Invasives blog is intended as an informal forum for those interested in invasive species control. If you wish to contribute, please get in contact. You can click on any of the images to see them at higher resolution.

Monday 30 May 2011

More Skunk cabbage from Strathconon earlier this year

Found at a garden pond in Strathconon with a burn leading into the main River Meig. A potential problem but doesn't appear to be at the moment according to Meryl.
Also found in another garden pond leading into the main Conon river system. The Victorians have a lot to answer for.

Friday 27 May 2011

Skunk on the run

American Skunk Cabbage has been steadily encroaching into an area of wet woodland by Loch Mhor. After failing to reduce the population with a spade, we resorted to glyphosate. All treated plants died. Those shown here were left as a control, and marked with a cane.

Inevitably, a few small plants were missed. Most were hiding under mum's skirts when the sprayer came round.
Are these clusters of small plants evidence that Skunk Cabbage sets viable seed?

Space invader

In the early stages of colonisation, Himalayan balsam can seem a fairly innocuous plant. But as it establishes, it can become heavily dominant, excluding native species.

Thursday 26 May 2011

Gardeners beware...Be Plant Wise


It's that time of the year again when the frost has halted and it's time to get those gardens and ponds sorted out....but are you Being Plant Wise???

Certain plants can take over our gardens and ponds. They can also become established in the wild, where they can smother our native plants, clog our waterways, worsen flooding and remove oxygen from the water, which can harm fish.

By doing something very simple, such as composting excess plants carefully, we can all help the environment and reduce costs.

To Be Plant Wise just follow these easy steps to ensure Invasive Non Native Plants don't spread into the surrounding countryside:



Be plant wise to the threat of invasive plants, which can take over your pond or garden and damage the environment.

Be careful if you move pond plants around – even tiny fragments can cause massive problems. Take care when maintaining your pond or disposing of waste water.

Don’t dump plants in the wild - you could be breaking the law. Always dispose of old plants and pond material responsibly, by composting or using a green waste bin.


For further information on INNS causing problems in Highland download the Cromarty Firth Fishery Trusts Invasive Species Information Pack for gardeners through the following link:

http://dl.dropbox.com/u/29384831/gardener%20awareness%20raising%20info%20pack.pdf

and visit the Be Plant Wise website:


Friday 20 May 2011

It's time to hang your...balsam out to dry!

What a wonderful growing season we have been having so far! Unfortunately the same applies to our non native plant invaders such as Himalayan balsam which is back with avengence!

Cue BTCV and their many merry volunteers!













Because when a plant can grow from this.....













.....to this in a few short weeks we need all the help we can get!













Lower Ness INNPS Project

Scottish Native Woods will resume its programme to control Invasive Non-Native Plants (INNPS) in Glenurquhart this year. The project is being extended to include other INNPS hotspots in the Lower Ness catchment. These include several populations of Himalayan balsam around Inverness.
Having tried a variety of control methods for balsam, we have found the most useful tool for the job is a Martindale 781 Slasher. It is a light hand-tool with a long reach ideal for difficult spots such as steep banks, and among woody vegetation. If it's kept sharp, it can be used to cut through scrub, nettles and brambles where balsam often hides.
More info at http://www.ralphmartindale.co.uk/

... the Slasher in action