Pictures about the nature of North-Finland: year 2006

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Shortly ice smelts, alder (Alnus incana) comes into flower and migratory birds arrive...


 

 

 

 

Pubescent birch (Betula pubescens) is flowering and the leaves in buds are growing quick since the temperature has been at an exalted level.


Bird cherry (Prunus padus) is now - in june before Midsummer - flowering in northern Finland.
But seldom the tree is so full of flowers in the north.


Ermine moth (Yponomeuta evonymellus) is often (in meny years) very common also in northern Finland.
In the same time the flowers of bird cherry (Prunus padus) waste away, appear to the trees gray covering: in the foliage
will peopled by myriad larvae of ermine moth covered by gray veils, safety nets. Larvae eat all leaves, but the trees will recover.
Larvae develop in late summer to the small moths (picture below; about 3 x enlarged). Females lay eggs in late summer,
small larvae will overwinter. Mass occurrence will expire sometime, when parasites come up.