01191naa a2200217 a 450000100080000000500110000800800410001910000200006024501200008026000090020052005540020965000230076365000130078665000150079965000170081465000240083165000130085565300190086870000190088777300670090615236332023-11-13       1959    bl uuuu     u00u1 u    #d1 aHUFFAKER, C. B.  aA ten-year study of vegetational changes associated with biological control of klamath weed.h[electronic resource]  c1959  aIt is the purpose of this paper to discuss these data as they bear upon two important question: (1) To what degree has the weed been reduced by this biological control in the areas studied, and (2) what has been the economic nature of the changes in composition of the vegetation on these ranges? At the request of the senior author the California State Department of Agriculture initiated a survey in 1951 of the Klamath weed infestation in the State, projected as prior to control by bettles, which control was at that time just getting under way.  aBiological control  aPastures  aRangelands  aWeed control  aControle Biológico  aPastagem  aPlanta daninha1 aKENNETT, C. E.  tJournal of Range Managementgv. 12, n. 2, p. 69-82, Mar. 1959.