Inoculation of stumps with Hypholoma fasciculare as a possible means to control armillaria root disease

Hypholoma fasciculare (Huds. ex Fr.) Kummer was paired with Armillaria ostoyae (Romagn.) Herink in a variety of ways in the laboratory and then it was inoculated onto A. ostoyae infected stumps in the field. The ability of H. fasciuclare colonies to overrun A. ostoyae colonies in culture was confirmed. Hypholoma fasciculare fully colonized discs of tree roots where A. ostoyae was well established, and prevented A. ostoyae from occupying root segments when both fungi were introduced simultaneously. A simple method for inoculating H. fasciculare into stumps is described, and data supporting successful field inoculations are presented. The ability of H. fasciculare to invade freshly killed stumps, even those occupied by Armillaria, is demonstrated, and it is speculated that the ability of this saprophyte to invade fresh stumps is dependent upon its inoculum potential.Key words: biocontrol, woody debris, fungal warfare, Armillaria ostoyae.

[1]  B. Jonsson,et al.  Wood-inhabiting fungi and substratum decline in selectively logged boreal spruce forests , 1995 .

[2]  G. Griffith,et al.  Interspecific interactions and mycelial morphogenesis of Hypholoma fasciculare (Agaricaceae) , 1994 .

[3]  L. Boddy.  Saprotrophic cord-forming fungi: warfare strategies and other ecological aspects , 1993 .

[4]  C. Shaw,et al.  Infection of Ponderosa Pine Trees by Armillaria ostoyae: Residual lnoculum versus Contagion , 1993 .

[5]  U. Singh,et al.  Plant diseases of international importance. Volume IV. Diseases of sugar, forest and plantation crops. , 1992 .

[6]  K. Korhonen,et al.  Life cycle, Interfertility and Biological Species. , 1991 .

[7]  N. Malajczuk,et al.  Inoculation of Eucalyptus diversicolor thinning stumps with wood decay fungi for control of Armillaria luteobubalina , 1990 .

[8]  J. Bérubé,et al.  MORPHOLOGICAL STUDIES OF THE ARMILLARIA MELLEA COMPLEX: TWO NEW SPECIES, A. GEMINA AND A. CALVESCENS , 1989 .

[9]  J. Bérubé,et al.  Morphological characterization of Armillaria ostoyae and Armillaria sinapina sp.nov , 1988 .

[10]  L. Boddy,et al.  The form and outcome of mycelial interactions involving cord-forming decomposer basidiomycetes in homogeneous and heterogeneous environments , 1988 .

[11]  James B. Anderson.  BIOLOGICAL SPECIES OF ARMILLARIA IN NORTH AMERICA: REDESIGNATION OF GROUPS IV AND VIII AND ENUMERATION OF VOUCHER STRAINS FOR OTHER GROUPS , 1986 .

[12]  C. G. Shaw,et al.  Armillaria root disease. , 1986 .

[13]  L. Boddy,et al.  DECOMPOSITION OF SUPPRESSED OAK TREES IN EVEN-AGED PLANTATIONS.. II. COLONIZATION OF TREE ROOTS BY CORD- AND RHIZOMORPH-PRODUCING BASIDIOMYCETES , 1983 .

[14]  I. Wästerlund,et al.  Fruit body production of larger fungi in some young Swedish forests with special reference to logging waste , 1980 .

[15]  C. Shaw,et al.  Control of Armillaria root rot in managed coniferous forests. A literature review. , 1978 .

[16]  C. Shaw.  Persistence and Distribution of a Clone of Armillaria mellea in a Ponderosa Pine Forest , 1976 .

[17]  R. Leach.  Bibological control and ecology of Armillaria mellea (vahl) fr , 1939 .