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Competing vegetation in ponderosa pine plantations : ecology and control / Philip M. McDonald, Gary O. Fiddler (General technical report PSW ; 113)

Competing vegetation in ponderosa pine plantations : ecology and control / Philip M. McDonald, Gary O. Fiddler (General technical report PSW ; 113)
Microform図書
1989<YCA-A 13.88:PSW-113>
National Diet Library
  • Subject HeadingPonderosa pine -- California Seeds -- California -- Ecology Weeds -- Control -- California

Biological control of aquatic weeds : the efficacy of hybrid grass carp in two southern California irrigations canals / by Joan S. Thullen, Frederick L. Nibling, Jr., John E. Boutwell

Biological control of aquatic weeds : the efficacy of hybrid grass carp in two southern California irrigations canals / by Joan S. Thullen, Frederick L. Nibling, Jr., John E. Boutwell
Microform図書
1985<YCA-I 27.60:85-4>
National Diet Library
  • Subject HeadingAquatic weeds -- Control -- California Hydrilla -- Control -- Califo...

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