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Iowa State University

Soybean

Plant Pathology

1998

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Influence Of Herbicide Application To Soybeans On Soybean Cyst Nematode Egg Hatching, Brian C. Levene, Michael D. K. Owen, Gregory L. Tylka Sep 1998

Influence Of Herbicide Application To Soybeans On Soybean Cyst Nematode Egg Hatching, Brian C. Levene, Michael D. K. Owen, Gregory L. Tylka

Plant Pathology and Microbiology Publications

The hatching of Heterodera glycines eggs in soybean root exudates collected after postemergence application of three herbicides, and the hatching potential of H. glycines eggs from females feeding on herbicide-treated plants, were measured in vitro. Hatching in all root exudate solutions (RES) was greater than in deionized water but less than in 0.003 M ZnSO[sub4] solution. Filtering RES with a 0.22-[mu]m-filter increased H. glycines hatching in RES. Application of acifluorfen, bentazon, and lactofen to foliage of soybean plants inhibited hatching of H. glycines eggs from the same plants. Hatching in RES from the different herbicide-treated ...