Canada Geese are the wild bird species protected under the act Section 1 of the Wildlife & Countryside Act, 1981. They regularly use the ponds and lakes of the historic gardens for breeding and feeding. They cause a lot of vegetation and physical damage. The Canada Geese policy states that:
- Excluding them from the islands by discouraging them. This could be done by fencing the perimeter.
- Redirecting them from the sensitive grazing areas.
- Reducing the visibility of water bodies to discourage grazing.
- Oiling the eggs to prevent them from hatching by killing the embryos. This requires appropriate license.
- Under emergency conditions, culling could be licensed under strict constraints.
Horse Chestnut Bleeding Canker:
Bleeding canker is a neither controllable or curable as of now. This disease is fatal for the plants. One defense layer is to remove the infected plants from the surroundings. They generally occur to the plants in proximity to sudden oak death. Special care and vigilance must be kept on those plants. Advice must be sought from the Food and Environment Research Agency.
Japanese Knot weed and Bracken are the problem weeds here.
There are various drugs that check their growth like Broadsword, Roundup, Tordon 22K and Asulox. However, they just minimize the spread. Total control is not practically possible.
Sudden Oak Death (Ramorum Dieback):
Phytophtora ramorum is a fungus that infects and kills the oak trees. That’s why it is also called Ramorum dieback. Food and Environment Research Agency(FERA) and Plant Health and Seeds Inspector(PHSI) should be called for regular inspection. If an infection is found then anti-fungal must be used. Though the eradication is not possible, suppressing is still feasible. Nearby smaller plants must also be kept under vigilance to check bleeding canker.