Phytophthora root and stem rot of soybeans.Author: Nyvall, Robert F.
Publisher: Ames, Iowa : Iowa State University, University Extension,
Date: [1998] This title can be found in 3 Iowa libraries.
Morels, false morels, and other cup fungi /Author: Tiffany, Lois H.
Publisher: Ames, Iowa : Cooperative Extension Service, Iowa State University,
Date: 1996. This title can be found in 2 Iowa libraries.
Agricultural crop disease control : category 1C : Iowa commercial pesticide applicator manual /Author: Sweets, Laura.
Publisher: [Ames, Iowa] : Iowa State University Extension,
Date: 1991. This title can be found in 3 Iowa libraries.
Field crop diseases handbook /Author: Nyvall, Robert F.
Publisher: New York : Van Nostrand Reinhold,
Date: c1989. This title can be found in 1 Iowa libraries.
Morels, false morels, and other cup fungi /Author: Tiffany, L. H.
Publisher: Ames, Iowa : Cooperative Extension Service, Iowa State University,
Date: 1985 This title can be found in 3 Iowa libraries.
Yellow dwarf of oatsFormat: [microfiche] /
Author: Nyvall, Robert F.
Publisher: Ames, Iowa : Cooperative Extension Service, Iowa State University,
Date: 1984. This title can be found in 2 Iowa libraries.
Budblight of soybeansFormat: [microfiche] /
Author: Nyvall, Robert F.
Publisher: Ames, Iowa : Cooperative Extension Service, Iowa State University,
Date: 1984. This title can be found in 2 Iowa libraries.
Pod tests for foliar fungicides on soybeansFormat: [microfiche] /
Author: McGee, Denis C.
Publisher: Ames, Iowa : Cooperative Extension Service, Iowa State University,
Date: 1984. This title can be found in 2 Iowa libraries.
Ergot /Author: Nyvall, Robert F.
Publisher: Ames, Iowa : Iowa State University, University Extension,
Date: [1984]. This title can be found in 1 Iowa libraries.
Soybean seed health /Author: McGee, Denis C.
Publisher: Ames : Iowa State University, University Extension,
Date: 1994. This title can be found in 2 Iowa libraries.
Soybean diseases /Publisher: Ames, Iowa : Cooperative Extension Service, Iowa State University,
Date: [1984] This title can be found in 1 Iowa libraries.
Controlling corn diseases in conservation tillageFormat: [microfiche] /
Author: Nyvall, Robert F.
Publisher: Ames, Iowa : Cooperative Extension Service, Iowa State University,
Date: 1983. This title can be found in 2 Iowa libraries.
Corn diseases /Author: Nyvall, Robert F.
Publisher: Ames, Iowa : Cooperative Extension Service, Iowa State University,
Date: 1983. This title can be found in 3 Iowa libraries.
Nematodes that attack corn in IowaFormat: [microfiche] /
Author: Norton, Don C.
Publisher: Ames : Cooperative Extension Service, Iowa State University,
Date: 1982. This title can be found in 2 Iowa libraries.
Soybean seed health /Author: McGee, Denis C.
Publisher: Ames : Cooperative Extension Service, Iowa State University,
Date: 1981. This title can be found in 2 Iowa libraries.
Soybean : fusarium and rhizoctonia root rot /Author: Nyvall, Robert F.
Publisher: Ames, Iowa : Iowa State University, Cooperative Extension Service,
Date: 1980. This title can be found in 2 Iowa libraries.
Soybean cyst nematodeFormat: [microform] /
Author: Nyvall, Robert F.
Publisher: Ames : Cooperative Extension Service, Iowa State University,
Date: 1979. This title can be found in 1 Iowa libraries.
Soybean cyst nematode /Author: Nyvall, Robert F.
Publisher: Ames : Cooperative Extension Service, Iowa State University,
Date: 1980. This title can be found in 1 Iowa libraries.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.