Campus Units
Plant Pathology and Microbiology, Agronomy
Document Type
Article
Publication Version
Published Version
Publication Date
12-1993
Journal or Book Title
Journal of Nematology
Volume
24
Issue
4
First Page
578
Last Page
584
Abstract
Laboratory studies were conducted to evaluate effects of selected herbicides on hatching of free eggs of the soybean cyst nematode, Heterodera glycines. The herbicides used were Atrazine (atrazine), Basagran (bentazon), Bladex (cyanazine), Blazer (acifluorfen), Command (clomazone), Lasso (alachlor), Sonalan (ethalfluralin), and Treflan (trifluralin). Treatments comprised two concentrations of commercial herbicide formulations and deionized water and 3.14 mM zinc sulfate as negative and positive controls, respectively. Eggs were extracted from females and cysts, surface disinfested, and incubated in herbicide or control solutions at 25 ± 2 C in darkness. Hatched second-stage juveniles were counted every other day for 24 days. Hatching of H. glycines eggs in 50 and 500 [mu]g/ml Blazer was 42 to 67% less than that in deionized water and 6l to 78% less than that in zinc sulfate solution. Zinc sulfate significantly increased hatching activity in 50 [mu]g/ml but not 500 [mu]g/ml Blazer. The other herbicides tested at various concentrations had no significant effect on egg hatching. The specific component of Blazer inhibiting egg hatching is unknown. Suppression of hatching by Blazer indicates that this postemergence soybean herbicide may have a potential role in managing H. glycines. Key words: acifluorfen, alachlor, atrazine, bentazon, clomazone, cyauazine, ethalfluralin, Glycine max, hatching, herbicide, Heterodera glycines, nematode, soybean cyst nematode, trifluralin.
Copyright Owner
The Society of Nematologists
Copyright Date
1993
Language
en
File Format
application/pdf
Recommended Citation
Wong, A. T. S.; Tylka, G. L.; and Hartzler, R. G., "Effects of Eight Herbicides on In Vitro Hatching of Heterodera glycines" (1993). Plant Pathology and Microbiology Publications. 191.
https://lib.dr.iastate.edu/plantpath_pubs/191
Included in
Agricultural Science Commons, Agriculture Commons, Agronomy and Crop Sciences Commons, Plant Pathology Commons
Comments
This article is published as Wong, A. T. S., G. L. Tylka, and R. G. Hartzler. "Effects of Eight Herbicides on In Vitro Hatching of Heterodera glycines." Journal of Nematology 25, no. 4: 578-584. Posted with permission.