There are no controls on the type of tree that can be planted in your garden. However, a number of points are worth considering:
In many cases the best form of tree management is not to prune at all because pruning can disrupt the natural state of the tree and also creates opportunities for decay fungi to enter and cause disease. If you feel you must prune a tree it is best to mimic nature. Crown reduction (making a tree smaller in size by overall pruning) is generally a bad form of tree management and will not normally be supported by the Council as it is very unnatural for the tree, often stimulates vigorous regrowth and can spoil the shape and amenity of the tree. If you feel you must prune your tree then decide what you want to achieve first and only carry out work that will do this. Such work should normally take the form of:
Crown lifting - The removal of branches from ground level to a specified height, usually expressed in metres and ultimately producing a clear stem. It is important that no branches bigger than 1/3rd the size of the associated tree stem are removed, as such wounds can create weaknesses in the tree.
Crown thinning - This is the thinning of the overall canopy of the tree usually by no more than 20%. The tree will remain the same size but the canopy will be thinner, allowing more light to penetrate. Such work is unlikely to stimulate vigorous regrowth.
Dead-wooding - Removing the dead-wood from a tree can be beneficial and if the tree is protected requires no consent from the council. Before undertaking any work it is necessary to check whether the tree is covered by a Tree Preservation Order or stands in a Conservation Area.
Traditionally trees are pruned during the dormant season (November - February) although there is no ideal time for tree pruning to occur. However pruning should definitely be avoided just before leaf fall and just before bud bust (on deciduous trees) because pruning at this time can reduce tree energy reserves and incorrect pruning during late March, April and May can induce 'bleeding' where the rising sap weeps from the tree. This can severely stress the tree, disrupting its natural balance at a very important time. If you have concerns about the work you intend to do consult a professional tree surgeon. It is also important not to disturb nesting birds or roosting/hibernating bats. If you have any queries concerning wildlife contact the Countryside and Rights of Way Team on 01274 432425.
Ivy uses trees for support but does not feed on the tree. Generally healthy trees will not allow ivy to become fully established. However, as trees age their crowns may begin to allow more light to penetrate. In such situations the extra light can stimulate growth in the ivy at the expense of the tree which subsequently declines.
Ivy tends to establish itself in deciduous trees. These trees lose their leaves in winter, to lower their wind resistance. But because ivy is evergreen, it raises the wind resistance and increases its weight which means that the tree is more likely to suffer damage in stormy conditions.
In addition, the presence of ivy can hinder tree inspections and may conceal serious defects in a tree. To remove ivy from the tree you will need to cut away a section about an inch in length further down to isolate the growth towards the top of the tree. This will then die back and fall away or can be pulled from the tree.
Such assessments are best made by qualified experts however this is not a service that is currently offered by the council's arboriculturists. Further details of tree contractors and consultants operating throughout the UK are available from the Arboricultural Association website .
Local tree contractors and consultants will be able to offer advice on the health and management of trees however this is not a service that is currently offered by the Council's arboriculturists. Further details of tree contractors and consultants operating throughout the UK are available from the Arboricultural Association website.
There are many types of fungi that affect wood. They are often indicative of a wider problem and are a valuable tool in diagnosing what may be wrong with your tree. They are also an invaluable habitat for rare insects and beetles and should not be removed from the tree. Removing fungal fruiting bodies from trees will not get rid of the fungus since it is usually by this stage well established within the tree. If you find fungi growing on your tree call an expert to help identify the potential problem. Details of tree contractors and consultants operating throughout the UK are available from the Arboricultural Association website.
If you require information on control of grey squirrels contact a local pest control firm. You can find details on the Yellow Pages website.
Certain species of trees are susceptible to aphids that feed on the sap through veins on the leaves. Because the sap has a very low nutritional content the aphids must feed on a very high volume and they discharge the excess as a sticky sugar solution (honeydew) while they are feeding. There is very little that can be done to resolve the problem. Spraying is often not practicable. Fortunately, the sugar solution is only a mild one and should not affect paintwork on cars, if the car is washed at regular intervals. Regular washing will also help to prevent a growth of sooty mould on the sugar solution deposits which can develop over time.