The
turning point in relation to the Estonian plant
kingdom seems to be at least in my eyes in December 26, 2004, when the
earthquake in the Sumatra region shocks literally the entire planet.
The storm, which came in the beginning of January in 2005, seems to be the beginning of the changes for the whole Estonia as well as for the region of Pärnu county.
It seems that from that moment something changed, since our springs began to be dry, and also a bit more - from the point of view of plants - quick-tempered.
Also autumns stretches for longer and again to dry up.
Now are our winters wierd - sometimes snowy, sometimes freezing - and the stability has been replaced by high temperature variations.
And even summers has changed - sometimes it's a typical "bad skiing weather", but in recent years it tends to be unusually hot / humid or too dry.
It could be said that our climatic conditions have become very diverse.
The changes in all four seasons are, of course, well seen in the plant kingdom - at least in the woody-plants world.
Changes generally occur in two major lines:
1. Stress
2. New diseases, fungis and pests
In recent years, there are quite a lot of stress factors depending on the climatic conditions - previously described spring and autumn water shortages that prevent plants from successfully starting or ending their growth years - this means autumnal dryness reduces winter resistance and increases the chance of frost damage.
Well, and when the spring is warm and rainy, our plants are momentally stressed.
But if the plants are stressed, they are also weak and are much more susceptible to various diseases and pests.
A good example - we have a meny years now a new and strong problems - oak powdery mildew (Erysiphe alphitoides), the horse-chestnut leaf miner (Cameraria ohridella) and also again DED (Ophiostoma ulmi or Ophiostoma novo-ulmi).
These are just a few examples of illnesses and pests that have started to be quite fast in Estonia.
It seems that this is one of the most difficult times in the history of woody plants in Estonia, as it will be highly probable for plants to cope with various new diseases / pests.
Perhaps scientists can suggest something, but at the moment, it seems that during this period, plants must survive or die without the help of humans, and give a way to new varieties or other species.
From our side, we can only reduce the stress of plants to some extent - by taking care of the correct acidity, moisture levels and nutrients for the soil (everything can be controlled / monitored by the appropriate equipment) and, if necessary, modified / improved.
Source: Urbandendro
http://ravelreiljan.blogspot.com/
The storm, which came in the beginning of January in 2005, seems to be the beginning of the changes for the whole Estonia as well as for the region of Pärnu county.
It seems that from that moment something changed, since our springs began to be dry, and also a bit more - from the point of view of plants - quick-tempered.
Also autumns stretches for longer and again to dry up.
Now are our winters wierd - sometimes snowy, sometimes freezing - and the stability has been replaced by high temperature variations.
And even summers has changed - sometimes it's a typical "bad skiing weather", but in recent years it tends to be unusually hot / humid or too dry.
It could be said that our climatic conditions have become very diverse.
The changes in all four seasons are, of course, well seen in the plant kingdom - at least in the woody-plants world.
Changes generally occur in two major lines:
1. Stress
2. New diseases, fungis and pests
In recent years, there are quite a lot of stress factors depending on the climatic conditions - previously described spring and autumn water shortages that prevent plants from successfully starting or ending their growth years - this means autumnal dryness reduces winter resistance and increases the chance of frost damage.
Well, and when the spring is warm and rainy, our plants are momentally stressed.
But if the plants are stressed, they are also weak and are much more susceptible to various diseases and pests.
A good example - we have a meny years now a new and strong problems - oak powdery mildew (Erysiphe alphitoides), the horse-chestnut leaf miner (Cameraria ohridella) and also again DED (Ophiostoma ulmi or Ophiostoma novo-ulmi).
These are just a few examples of illnesses and pests that have started to be quite fast in Estonia.
It seems that this is one of the most difficult times in the history of woody plants in Estonia, as it will be highly probable for plants to cope with various new diseases / pests.
Perhaps scientists can suggest something, but at the moment, it seems that during this period, plants must survive or die without the help of humans, and give a way to new varieties or other species.
From our side, we can only reduce the stress of plants to some extent - by taking care of the correct acidity, moisture levels and nutrients for the soil (everything can be controlled / monitored by the appropriate equipment) and, if necessary, modified / improved.
Source: Urbandendro
http://ravelreiljan.blogspot.com/
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