caa a22 4500 475834755 CHVBK 20180406123850.0 cr unu---uuuuu 170329e20000601xx s 000 0 eng 10.1023/A:1009998919531 doi (NATIONALLICENCE)springer-10.1023/A:1009998919531 Persistence of augmented Metarhiziumanisopliae and Beauveria bassiana in Finnishagricultural soils [Elektronische Daten] [Irene Vänninen, Johanna Tyni-Juslin, Heikki Hokkanen] The persistence and penetration into soilof surface-applied unformulated conidia of twoisolates of Metarhizium anisopliae and one of Beauveria bassiana at sites with clay, peat andtwo kinds of sand as their soil types and at depthsof from 0 to 20 cm was studied in 1988-1991 underconditions characterized by permanent snow cover andfrozen soil in the winter time. At 0-5 cm depth, M. anisopliae persisted throughout the experiment atall sites, clay being the most and peat the leastfavourable soil for persistence. Clay and one of thesandy soils were the least and peat the most conducivesoil to penetration of M. anisopliae from thesurface to deeper soil layers and persistence therein.Differences in persistence were evident between thetwo M. anisopliae isolates in the sandy and peatsites, but not in the clay site. Three yearspost‐application there were still enough infectiouspropagules of M. anisopliae in soil of allsites to infect over 80% of the Tenebriomolitor larvae used as baits in samples taken fromthe cylinders of all soils. All the augmentedpropagules of B. bassiana disappeared duringthe first winter after application in clay and one ofthe two sandy sites, but some persistence one yearpost‐inoculation was evident at 0-5 depth in one ofthe sand soils and at 0-5 and 5-10 cm depths in peat. Kluwer Academic Publishers, 2000 biological control nationallicence ecology nationallicence entomogenous fungi nationallicence Finland nationallicence persistence nationallicence Deuteromycetes nationallicence Vänninen Irene Agricultural Research Centre, Plant Protection, Jokioinen, Finland aut Tyni-Juslin Johanna Agricultural Research Centre, Plant Protection, Jokioinen, Finland aut Hokkanen Heikki Department of Applied Zoology, University of Helsinki, Finland aut BioControl Kluwer Academic Publishers 45/2(2000-06-01), 201-222 1386-6141 45:2<201 2000 45 10526 https://doi.org/10.1023/A:1009998919531 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1009998919531 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vänninen Irene Agricultural Research Centre, Plant Protection, Jokioinen, Finland aut NATIONALLICENCE 700 1- Tyni-Juslin Johanna Agricultural Research Centre, Plant Protection, Jokioinen, Finland aut NATIONALLICENCE 700 1- Hokkanen Heikki Department of Applied Zoology, University of Helsinki, Finland aut NATIONALLICENCE 773 0- BioControl Kluwer Academic Publishers 45/2(2000-06-01), 201-222 1386-6141 45:2<201 2000 45 10526 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer