P. Westra
发表
Dawn Y. Wyse-Pester,
L. Wiles,
P. Westra,
2002,
Weed Science.
P. Westra,
R. Hufbauer,
A. C. Blair,
2005
.
D. G. Westfall,
G. W. Buchleiter,
D. F. Heermann,
2002,
Precision Agriculture.
Lori J. Wiles,
Philip Westra,
L. Wiles,
2007
.
P. Westra,
Kang Liu,
R. Sammons,
2020,
Pest management science.
P. Westra,
A. C. York,
D. Jordan,
2012
.
P. Westra,
W. Stump,
2000,
Weed Technology.
P. Westra,
D. Shaner,
G. Brunk,
2013,
Weed Science.
P. Westra,
D. Shaner,
G. Brunk,
2010,
Weed Science.
P. Westra,
Dennis J. Tonks,
1997,
Weed Technology.
P. Westra,
R. Sammons,
Chenxi Wu,
2018,
Proceedings of the National Academy of Sciences.
Stephen D. Miller,
P. Westra,
B. Maxwell,
1999,
Weed Science.
O. K. Chung,
P. Westra,
B. Seabourn,
2006
.
P. Westra,
F. D. Moore,
Claudio M. Dunan,
1999
.
P. Westra,
P. Christoffoleti,
1994
.
P. Westra,
M. VanGessel,
1997,
Weed Technology.
P. Westra,
S. Ward,
S. Nissen,
2003,
Weed Science.
J. V. Stafford,
Lori J. Wiles,
Philip Westra,
1999
.
P. Westra,
R. Wilson,
M. Moechnig,
2017,
Weed Science.
T. T. Bauman,
P. Westra,
G. Johnson,
2004,
Weed science.
Stephen D. Miller,
P. Westra,
D. Lyon,
2000,
Weed Science.
P. Westra,
P. Byrne,
D. Shaner,
2008,
Weed Science.
P. Westra,
D. Shaner,
B. Hanson,
2007
.
P. Westra,
P. Byrne,
C. Preston,
2007
.
Stephen D. Miller,
P. Westra,
P. Stahlman,
1992,
Weed Technology.
P. Westra,
G. Zanin,
A. Berti,
1996,
Weed Science.
P. Westra,
R. Wilson,
1991,
Weed science.
P. Westra,
Claudio M. Dunan,
F. Moore,
1994
.
P. Westra,
D. Shaner,
G. Brunk,
2010,
Weed Science.
P. Westra,
R. Zimdahl,
B. Cranmer,
1999,
Weed Science.
P. Westra,
S. Nissen,
H. Santel,
2001,
Weed science.
P. Westra,
P. Sikkema,
Zhenyi Li,
2016,
Weed Science.
P. Westra,
S. Nissen,
P. A. Miller,
1999,
Weed Science.
P. Westra,
D. Shaner,
G. Brunk,
2010,
Weed Science.
P. Westra,
D. Shaner,
G. Brunk,
2009
.
P. Westra,
S. Nissen,
S. Enloe,
1999,
Weed Science.
P. Westra,
H. Takano,
R. F. L. Ovejero,
2019,
Ciência e Agrotecnologia.
P. Westra,
S. Nissen,
Todd A. Pester,
2001,
Weed Science.
P. Westra,
M. Haidar,
G. Orr,
1998
.
W. Brien Henry,
Patrick F. Byrne,
Peter C. Ellsworth,
2009
.
O. K. Chung,
P. Westra,
B. Seabourn,
2006
.
P. Westra,
C. Preston,
S. Ward,
2009,
Weed Science.
P. Westra,
Jerry J. Johnson,
S. Haley,
2003
.
P. Westra,
Jerry J. Johnson,
S. Haley,
2003
.
P. Westra,
S. Sehgal,
B. Gill,
2014,
Plant Physiology.
Mark J. VanGessel,
Karen A. Garrett,
Philip Westra,
1995,
Weed Science.
P. Westra,
S. Sehgal,
B. Gill,
2014
.
P. Westra,
Claudio M. Dunan,
P. Chapman,
1996
.
P. Westra,
R. Zimdahl,
A. Tanji,
1997,
Weed Science.
P. Westra,
E. Schweizer,
D. Lybecker,
1994,
Weed Science.
P. Westra,
P. Christoffoleti,
F. Moore,
1997,
Weed Science.
Stephen D. Miller,
P. Westra,
R. Wilson,
2007,
Weed Technology.
Stephen D. Miller,
P. Westra,
R. Wilson,
2007,
Weed Science.
Integrated Weed Management Systems for Irrigated Corn (Zea mays) Production in Colorado—A Case Study
P. Westra,
E. Schweizer,
D. Lybecker,
1996,
Weed science.
L. Wiles,
P. Westra,
D. Wyse-Pester,
2002,
Journal of nematology.
P. Westra,
Kirk Howatt,
S. Nissen,
2006,
Weed Science.
P. Westra,
Kang Liu,
R. Sammons,
2020,
Pest management science.
Kenneth L. Smith,
Clarence J. Swanton,
Eric R. Page,
2012,
Weed Science.
P. Westra,
D. Shaner,
B. Hanson,
2006
.
Mark J. VanGessel,
Donald W. Lybecker,
P. Westra,
1995,
Weed Technology.
Donald W. Lybecker,
Frank D. Moore,
Philip Westra,
1995
.
L. Wiles,
P. Westra,
R. Wilson,
1998,
Weed Technology.
David A. Mortensen,
Sharon A. Clay,
T. T. Bauman,
1999,
Weed Science.
P. Westra,
J. Schroeder,
M. VanGessel,
1998,
Weed Science.
P. Westra,
F. Schweissing,
C. H. Pearson,
1996,
Weed Technology.
P. Westra,
C. H. Pearson,
R. Ristau,
1990,
Weed Technology.
P. Westra,
S. Ward,
J. E. F. Figueiredo,
2006
.
P. Westra,
S. Ward,
J. E. F. Figueiredo,
2004
.
P. Westra,
D. Mortensen,
S. Clay,
1996,
Weed Science.
P. Westra,
E. Schweizer,
1991
.