A reminder that we will be ‘litter picking’ Saturday 22nd May commencing at 2pm, meet at usual spot on the bridge above Afon Seiont (N53 07.825 W004 16.125). This is an unofficial event as Geocaching UK won’t allow any meets currently. We look forward to seeing you all on the day, it has been a long time since we all got together. We will be complying with current Covid regulations as they stand on the day. Also might even sneak a crafty beverage in a pub afterwards :-).
As the name suggests Himalayan Balsam comes originally from the Kashmir and Uttarakhand areas of the Himalayas. It was first introduced into Kew Gardens in 1839 as an annual greenhouse plant. Being easy to grow and having attractive pink/white trumpet shaped flowers it became a very popular plant with gardeners. Within 10 years it had escaped from the confines of gardens and begun to spread along the river systems of England.
Himalayan Balsam grows very quickly and once established in an area, forms dense thickets of up to 2 meters high. Each plant can produce up to 800 seeds, the seed pods once ripe, explode shooting the seeds up to 7m away from the parent plant. If the seeds land in a waterway they float down stream before settling in soft mud banks and germinating. The seeds can remain viable for up to 2 years.
Himalayan Balsam image Wikipedia
Why do we need to control Himalayan Balsam?
It smothers native vegetation by crowding and shading out light, in the winter it dies back leaving bare earth which is then subject to erosion. This can cause major problems along river banks. The dead plant debris can block waterways causing flooding and more damage to local habitats. Being very rich in nectar its flowers attract a wide array of pollinating insects. Studies are taking place on how this effects the pollination of our native plants. Initial finding suggest that it does have a detrimental effect as reduced numbers of insects are visiting other flowering plants.
Controlling Himalayan Balsam
Being a non-native plant it has no natural enemies to keep it under control. There are two traditional ways of removing Himalayan Balsam from a site hand pulling or spraying of chemicals. The best time of year for tackling the plant is May-July, before the seeds have set. Not all sites are suitable for either of these methods and trials of introducing a rust fungus from India are currently taking place in England and Wales.
Why am I writing about Himalayan Balsam? We have an escalating local problem, nearly all our local waterways have some Himalayan Balsam contamination. We are looking for volunteers to form a ‘Balsam Bashing” party to tackle an area at Aberglaslyn. This site can only be controlled by hand pulling due to the closeness of the Afon Glaslyn. We will be working along side Snowdonia National Park and other volunteers at the end May/June.
Are you interested in helping? Please let us know in the comments.
Now postponed to 22nd May
Although official Geocaching Events are not available just yet, Socially distanced gatherings of up to 30 persons will be permitted from the 26th of April under the latest guidance from the Senedd. As we haven’t met up as a group for quite a while, a CITO is the perfect socially distanced event. A suggestion is that we could combine an unofficial CITO and the “Let’s improve the outdoors – Locationless Cache GC8NEAT” which adds both an Icon and Souvineer to your profile. So with all that in mind how about meeting on 2nd May Saturday Afternoon Near Tescos Caernarfon and hitting some of the hot spots in the vicinity. Please let us know if you are interested, the number will of course be limited to 30.