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Displaying 1-5 of 5 results for author "Hoff, R. J. (Raymond J.)"
Susceptibility of ponderosa pine to western gall rust within the middle Columbia River system / R.J. Hoff.
- Text
- Ogden, UT : U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, [1990]
- 1990
Differential susceptibility of ponderosa pine to the gouty pitch midge (Cecidomyia piniinopis) / R.J. Hoff.
- Text
- Ogden, UT (324 25th St., Ogden 84401) : U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, [1989]
- 1989
Susceptibility of inland Douglas-fir to Rhabdocline needle cast / Ray J. Hoff.
- Text
- Ogden, UT : U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, [1987]
- 1987
How to recognize blister rust infection on whitebark pine [microform] / Ray J. Hoff.
- Text
- Ogden, UT (324 25th Street, Ogden 84401) ; U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, [1992]
- 1992
Genetic variation in susceptibility of lodgepole pine to western gall rust in the inland Northwest [microform] / R. J. Hoff, Sun Minggao.
- Text
- [Ogden, Utah?] : U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, [1994]
- 1994
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