Control of Dwarf Mistletoe

The dwarf mis t le toe Afeeu t 'hobh abietinum is a ser ious pa ras i t e of t r u e f i r s [Abies spp.) growing on the Pac i f i c Coast. Damage is most severe i n old-growth and unmanaged f i r stands. With information now avai lable , the fo res t manager can develop management guides f o r control of dwarf mistletoe. Such information includes parasite-host spec i f i c i ty , s i z e a t which young t r e e s become infected, growth r a t e of t r e e s i n r e l a t i o n t o dwarf mis t le toe buildup and spread, and e f fec t s of dwarf mistletoe on t r e e growth r a t e and mortali ty.