okkaid ja võrseid kahjustav valgete vahatupsudega kaetud tiivutu pahktäi, kelle tegevuse tulemusel okkad kattuvad kleepuva mesikaste ja nõgiseentega, enam on kahjustajaid suvel, talvel puukoorel, enam on kahjustusi euroopa lehisel, vähem teistel lehiseliikidel, an offten common pest of larch (Larix), including ornamentals, but mainly on older trees, infected foliage is disfigured white, waxen 'wool', the needles become discoloured and distorted, heavily infested trees offten appearing blue, attacks may also lead to premature loss of needless and to die-back of shoots