Who is busy in the hazel grove and how?
Common hazel Harilik sarapuu Corylus avellana
The bell-shaped and soft husk that encloses hazel nuts is green, velvety and fringed at the edges in summer. There may be up to five one-seeded nuts in a group. By now they are nicely brown. The average diameter of hazelnuts is a couple of centimetres and the weight of a thousand nuts may be estimated at a kilo – or one nut, one gram.
When the kernel or seed (”nut”) cannot be easily loosened from the husk it may almost certainly be predicted that there is no kernel because the nut weevil has laid its eggs in the young seed.
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