Evaluation and Success of Dwarf Mistletoe Control in California's East-side Jeffrey Pine Type-

The f i r s t and most in tens ive attempts a t dwarf mis t l e toe control on t h e Plumas National Forest were made i n the Milford Ranger D i s t r i c t on the eas t s ide of the S i e r r a Nevada. These control attempts were possibly the most extensive i n the Forest Service ' s Cal i fornia Region. Survey and control procedures were based on the l imited knowledge of dwarf mis t le toe avai lable a t t he time. Experience and success were achieved l a rge ly by t r i a l and e r ro r a s knowledge i n control of dwarf mis t le toe was gained. Many hundreds and thousands of acres of formerly heavily infected , de ter iora t ing, and dying stands of Je f f r ey pine a r e now producing acceptable increments of growth. More knowledge needs t o be gained i n determining j u s t what degree of dwarf mis t le toe control i s necessary t o produce acceptable growth gains and s t i l l not allow t h i s p l an t pes t t o ser ious ly damage the u l t imate r e generation of the J e f f r e y pine stands.