Eight Nonhost Weed Species of Heterodera glycines in Iowa

Wong, A. T. S.; Tylka, G. L.; Tylka, Gregory

Eight Nonhost Weed Species of Heterodera glycines in Iowa

File

1994_Tylka_EightNonhost001.PDF (2.93 MB)

Date

1994-04-01

Authors

Wong, A. T. S.

Tylka, G. L.

Tylka, Gregory

Authors

Person

Tylka, Gregory

Morrill Professor

Organizational Units

Organizational Unit

Plant Pathology and Microbiology

The Department of Plant Pathology and Microbiology and the Department of Entomology officially merged as of September 1, 2022. The new department is known as the Department of Plant Pathology, Entomology, and Microbiology (PPEM). The overall mission of the Department is to benefit society through research, teaching, and extension activities that improve pest management and prevent disease. Collectively, the Department consists of about 100 faculty, staff, and students who are engaged in research, teaching, and extension activities that are central to the mission of the College of Agriculture and Life Sciences. The Department possesses state-of-the-art research and teaching facilities in the Advanced Research and Teaching Building and in Science II. In addition, research and extension activities are performed off-campus at the Field Extension Education Laboratory, the Horticulture Station, the Agriculture Engineering/Agronomy Farm, and several Research and Demonstration Farms located around the state. Furthermore, the Department houses the Plant and Insect Diagnostic Clinic, the Iowa Soybean Research Center, the Insect Zoo, and BugGuide. Several USDA-ARS scientists are also affiliated with the Department.

Department

Plant Pathology and Microbiology

Abstract

The ability of the soybean cyst nematode (Heterodera glycines) to reproduce on eight weed species commonly occurring in Iowa was evaluated in greenhouse and field microplot experiments. Population densities of the nematode increased on H. g/ycines-susceptible soybean but not on H. g/ycines-resistant soybean, Canada thistle, cocklebur, eastern black nightshade, giant foxtail, lambsquarters, redroot pigweed, velvetleaf, and wild sunflower. All of the weeds evaluated were nonhosts of this H. glycines race 3 population.

Comments

This article is published as Wong, A. T. S., and Tylka, G. L. 1994. Eight nonhost weed species of Heterodera glycines in Iowa. Plant Disease 78:365-367. Posted with permission.