I am writing in response to Mr Gays recent letter which criticised the Mitcham Common Conservators management of Mitcham Common.

While not wishing to make light of the summer outbreak of avian botulism on Seven Islands Pond, your readers should be aware that because the natural factors that determine outbreaks of this disease are still poorly understood it is almost impossible to predict or prevent such occurrences.

Nevertheless when it did strike, sick birds were removed from the pond without delay.

Turning to the illegal occupation of the common by travellers and the resultant fly-tipping, over the past few years steps have been taken to secure the boundaries of the common against vehicular incursions.

However, because people and maintenance vehicles must be able to gain access some areas will always be vulnerable.

The solution is speedy eviction and to this end the conservators are constantly reviewing their legal options with both the police and Merton Council.

With regard to clearing the fly-tipping, this will cost thousands of pounds but should be carried out before the end of the year.

My Gays final point relates to the preservation of one of Londons most uncommon grassland types.

Lack of appropriate management in the past has meant woodland has been allowed to invade what was once grassland.

The current work programme does not seek to clear all the trees and shrubs, rather it aims to restore a balance between the two habitats and in so doing preserve the plants and animals that rely on them for their survival.

Rest assured the Mitcham Common Conservators take their responsibilities very seriously. Furthermore, as warden of Mitcham Common I am always available to discuss with local people any management issues that they may be concerned about.

MARTIN BOYLE

Warden of Mitcham Common

Mill House Ecology Centre