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Greenhouse studies comparing strains of the fungus Verticillium lecanii for activity against the nematode Heterodera glycines
- Meyer, S.L.F., Meyer, R.J.
- Fundamental and applied nematology 1996 v.19 no.3 pp. 305
- Heterodera glycines, cyst nematodes, nematophagous fungi, Torrubiella confragosa, biological control agents, strain differences, mutants, benomyl, fungicide resistance, alginates, application rate, population density, nematode control
- In a greenhouse experiment, five strains of the fungus Verticillium lecanii were compared for their effects on soybean cyst nematode population densities. Four strains were mutants selected for increased tolerance to benomyl; the fifth strain was a wild type (ATCC 58909). Alginate prills containing fungus were applied at 0.5 g and 5.0 g prills per pot (each pot contained 530 g soil mixture). At the 5.0 g prills per pot application rate, all four mutant strains caused significant reductions in cyst numbers compared with controls without fungus. No strains were effective against the nematode when the prills were applied at 0.5 g per pot.