PLANT PROTECTION

摘要

Plant protection system for newly afforested tree plants intended to prevent attacks from pine weevils, composed of a cylindrical or conical tube (9; 14; 15; 16) suited to surround an afforrested tree plant, and at least one outward directed, surrounding collar (10; 17; 18; 19) fitted to the upper part of the tube. The surrounding collar (10; 17; 18; 19) is characterised by in that it has a downward directed outer part (12; 20; 21; 22) and one lower upward directed part (13; 23; 24; 25). The distance (L) between the free edge (11; 26; 27; 28) of the lower part (13; 23; 24; 25) and the outer surface of the tube (9; 14; 15; 16) is long enough so that the pine weevil can pass through the space between the tube (9; 14; 15; 16) and the free edge (11; 26; 27; 28) mentioned.