Colour of the leaves:
Leaves are supposed to be green in tone. If they are showing a shade which is not so green or kind of white, then it is a sign of a problem. You can also have a look at the colour of the leaves near your locality to understand more about the soil and the environment in which the your trees are growing.
Canopy:
If the trees are healthy, then their canopy will be full of needles and leaves. This is especially true for spruce trees. If the tree is sick, then they will have thin needles. The reason for this is possibly because of stress or an infection caused by fungus. Bad use of tree pruning techniques can also affect the leaves. Things are a bit different for deciduous trees which shed leaves during the autumn season. For such trees, the canopy is anyways thinner, which makes it harder for people to make out the problem. In short, if you see a thinning crown, then you will need an arborist in India.
Tips of the branches:
If the tips of the branches or the top of the trees are having a situation of a dieback, then the tree definitely needs help. This is also a sign of severe condition of the tree which might have been caused by attacks by insects or high levels of stress. Whether it is stress or insect-attack, the trees will need help in both cases. Even though the things to inspect are not too many, but still the whole process can get a bit complicated for people who do not have arboriculture training.
Dropping leaves:
If the tree is shedding all leaves before the autumn season, then it is also a serious issue. This symptom is mostly related to problems with the root system of the tree. It is also the kind of issue where urgent attention is required else the tree will be killed eventually.
These four things should be looked for on a regular basis. Always remember, earlier detection of the issue can save the tree and late action or no action will result in killing of the tree. Chances of cure are better if the detection is early. You can hire the services of a certified arborist in Mumbai who can help you with the inspection of the trees. They can even do tree risk assessment for you which will help you to plant and maintain healthy trees.
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