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Food attraction and population growth of fungivorous nematodes with different fungi
Author(s) -
Hasna M.K.,
Insunza V.,
Lagerlöf J.,
Rämert B.
Publication year - 2007
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.2007.00163.x
Subject(s) - biology , rhizoctonia solani , verticillium dahliae , trichoderma harzianum , botany , population , horticulture , biological pest control , demography , sociology
Food attraction of the fungivorous nematodes Aphelenchus avenae and Aphelenchoides spp. to seven fungal species ( Pyrenochaeta lycopersici , Botrytis cinerea , Rhizoctonia solani strains AG 3 and AG 2‐1, Verticillium dahliae , Pochonia bulbillosa , Mortierella hyalina and Trichoderma harzianum ) was determined on agar plates by counting the number of test nematodes present on the mycelium of each fungus 24 h after inoculation. Population growth of A. avenae and Aphelenchoides spp. on five of the seven fungi included in the attraction test ( P. lycopersici , R. solani strain AG 3, V. dahliae , P. bulbillosa and T. harzianum ) was also determined on agar plates by counting nematode numbers every week during a 6‐week period. A. avenae and Aphelenchoides spp. were attracted to all the fungi tested. A. avenae was preferentially attracted to V. dahliae ( P < 0.0001), and Aphelenchoides spp. did not show any preference except for low attraction to R. solani . A. avenae and Aphelenchoides spp. reproduced on all fungal species tested. After 6 weeks of incubation, the highest number of nematodes was found on P. lycopersici and P. bulbillosa , while the lowest number occurred on R. solani for A. avenae and on T. harzianum for Aphelenchoides spp. The suitability of a fungus as a host was not clearly related to the attraction to that fungus.