Pygmy weed's giant attack on Foulridge reservoir

The reservoir has been infested with New Zealand pygmy weed, a non-aquatic plant, which forms a dense mat of vegetation.

It is feared that the invasive plant will also threaten the recreational use of the reservoir for anglers and sailors.

Since discovering the plant in the reservoir, the Canal & River Trust has attempted to kill off the plant by spraying with herbicide, but is now working with anglers and sailors who use the reservoir to join in the campaign to try to stop the spread of the weed.

Together they have put up signs around the reservoir warning of the need to keep angling and sailing equipment clean in an attempt to prevent the plant spreading.

Canal and River Trust ecologist Tom King said: “New Zealand pygmy weed poses a real threat. The plants forms dense mats which out competes most native aquatic plants and blocks out light affecting fish and invertebrates.

“We have taken immediate action by spraying herbicide to try and kill off the plant but need the support of anglers and sailors to keep their equipment clean to stop the plant spreading further.

"We met with local groups and they were very supportive because they recognise the impact the plant could on their enjoyment of their sports if the plant was left unchecked.

“Our real concern is to stop the spread of the plant to other waters. Everyone needs to play their part so that we can minimise the impact of this invasive invaders."

The government has recently launched a campaign, called 'Be Plant Wise' to help raise awareness of the damage caused by invasive plants and the need to dispose of them correctly.

Be Plant Wise urges gardeners to be aware of the threat of invasive plants which can take over ponds and damage the environment.

Gardeners are advised not to move pond plants around as even tiny fragments can lead to massive problems.

They are also urged to be careful when maintaining their pond and disposing of waste water.