Stockings for Protection of Containerized Conifer Seedlings against Pine Weevil (Hylobius abietis L.) Damage

1989

7 Abb., 2 Tab., 15 Lit. Ang.

Unselbständiges Werk

12244

200047471

The effectiveness of a stocking, constructed of nylon and cotton netting, in protecting containerized conifer seedlings against pine weevil attack was evaluated in field tests on 37 clear-cut reforestation areas in southern and central Sweden. The stockings significantly reduced pine weevil feeding on treated seedlings as well as seedling mortality. The protective effect of the stockings was similar to that of an insecticide (permethrin) treatment. In most experiments the survival of stocking-enclosed seedlings was satisfactory from a practical point of view, whereas untreated control seedlings suffered heavy mortality.