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Cotton Testing Service
作者
C. J. Nicholas / Frederick H. Berry / Gary W. Frasier / Judith A. Quick / R. C. Beckwith / Robert L. Anderson / Elizabeth W. Murphy / Lloyd E. Myers / Richard R. Mason / H. Gene Paul
出版1982
ISBN
UIUC:30112019249553
主題
Cotton manufacture
Sampling Western Spruce Budworm Larvae by Frequenc...
作者
Richard R. Mason / R. C. Beckwith
出版1990
ISBN
MINN:31951D02986420K
主題
Sampling (Statistics)
Field Testing of Two Isolates of Bacillus Thuringi...
作者
R. C. Beckwith
出版1986
ISBN
OCLC:893556199
主題
Bacillus thuringiensis
New Lepidoptera Records for the Blue Mountains of ...
作者
David G. Grimble
出版1993
ISBN
MINN:31951D029959768
主題
Lepidoptera
How to Determine the Number of Douglas-fir Tussock...
作者
R. C. Beckwith / Richard R. Mason / H. Gene Paul
出版1982
ISBN
IND:30000092092547
主題
Douglas fir
Patterns of Occurrence of the Western Spruce Budwo...
作者
Robert W. Campbell / Nilima Srivastava / Torolf R. Torgersen / R. C. Beckwith
出版1984
ISBN
OCLC:949261328
主題
Insect pests
Key to Adult Bark Beetles Commonly Associated with...
作者
R. C. Beckwith
出版1972
ISBN
MINN:31951D02995490Y
主題
Bark beetles
Agriculture Handbook
作者
R. C. Beckwith / Richard R. Mason / H. Gene Paul
出版1949
ISBN
MINN:31951D00630320D
主題
Agriculture
Western Larch as a Host of the Western Spruce Budw...
作者
R. C. Beckwith
出版1983
ISBN
OCLC:83527582
Bark Beetle Response to Clearcut and Shelterwood S...
作者
R. C. Beckwith / Jerry O. Wolff / John C. Zasada
出版1977
ISBN
MINN:31951P010939838
主題
Bark beetles
The Large Aspen Tortrix
作者
R. C. Beckwith
出版1973
ISBN
IND:30000091992598
主題
Aspen
Overview of Initial Ground Investigations for the ...
作者
R. C. Beckwith
ISBN
OCLC:704143956
The Effect of Temperature and Food Deprivation on ...
作者
R. C. Beckwith / Forestry Sciences Laboratory (Corvallis, Or.)
出版1983
ISBN
OCLC:81864971
主題
Lymantriidae
Sampling Western Spruce Budworm Larvae by Frequenc...
作者
Robert R. Mason
出版1990
ISBN
OCLC:1040042218
主題
Spruce budworm
Isoenzyme Identification of Picea Glauca, P. Sitch...
作者
Donald L. Copes / R. C. Beckwith
出版1977
ISBN
OCLC:951067865
主題
Conifers
Observational Effects of Strong Gravity
作者
Kristian R. C. Beckwith
出版2005
ISBN
OCLC:912847180
The Spruce Beetle
作者
J. M. Schmid
出版1972
ISBN
IND:30000091992267
主題
Spruce beetle
The Large Aspen Tortrix, Choristoneura Conflictana...
作者
R. C. Beckwith
出版1968
ISBN
OCLC:67644964
Douglas-fir Tussock Moth Handbook
作者
R. C. Beckwith / Richard R. Mason / H. Gene Paul / Combined Forest Pest Research and Development Program (U.S.)
出版1982
ISBN
OCLC:246328752
主題
Douglas fir tussock moth
Cotton Testing Service
作者
Frederick H. Berry / Gary W. Frasier / Judith A. Quick / R. C. Beckwith / Robert L. Anderson / Elizabeth W. Murphy / Lloyd E. Myers / Richard R. Mason / H. Gene Paul
出版1982
ISBN
OCLC:8652131
主題
Cotton manufacture
Effects of Constant Laboratory Temperatures on the...
作者
R. C. Beckwith
出版1982
ISBN
OCLC:81363779
How to Determine the Number of Douglas-fir Tussock...
作者
R. C. Beckwith / R.R. Mason / H. Gene Paul
出版1982
ISBN
OCLC:1288999949
主題
Douglas fir tussock moth
Instar Development of the Douglas-fir Tussock Moth...
作者
R. C. Beckwith
出版1993
ISBN
MINN:31951D02986663U
主題
Boise National Forest (Idaho)
Larval Instars of the Douglas-fir Tussock Moth
作者
R. C. Beckwith
出版1978
ISBN
UVA:X001754997
主題
Douglas-fir tussock moth
How to Determine the Number of Douglas-fir Tussock...
作者
R. C. Beckwith
出版1982
ISBN
OCLC:1131349524
Tropical Yams and Their Potential
作者
Boyd E. Wickman / Charles P. Schwalbe / Edward E. Simons / Franklin W. Martin / Harvey R. Smith / J. D. Podgwaite / Jerald E. Dewey / R. C. Beckwith / Raymond Carl Rietz / United States. Food Safety and Quality Service / Walter H. Wischmeier / Lucien Degras / R. A. Lautenschlager / Richard C. Reardon / Mark Ticehurst
出版1978
ISBN
LCCN:78600012
主題
Aerial spraying and dusting in agriculture
Larval Instarts of the Douglas-fir Tussock Moth
作者
R. C. Beckwith
出版1989
ISBN
OCLC:708700828
Gypsy Moth Handbook
作者
R. C. Beckwith / United States. Department of Agriculture
出版1978
ISBN
OCLC:84278738
主題
Douglas fir tussock moth
Spring Larval Dispersal of the Western Spruce Budw...
作者
R. C. Beckwith
出版1982
ISBN
OCLC:13261008
主題
Larvae
Bark Beetle Response to Clearcut and Shelterwood S...
作者
R. C. Beckwith / Jerry O. Wolff / John C. Zasada
出版1977
ISBN
OCLC:67646938
主題
Bark beetles