Effect of antagonistic<Emphasis Type="Italic">Fusarium</Emphasis> spp. and of different commercial biofungicide formulations on Fusarium wilt of lettuce |
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| Authors: | Giovanna Gilardi Angelo Garibaldi Maria Lodovica Gullino |
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| Institution: | (1) Centre of Competence for the Innovation in the Agro-Environmental Sector (AGROINNOVA) and DI. VA. P. RA.,, University of Torino, 100095 Grugliasco, Italy |
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| Abstract: | Five experimental trials were carried out to test different biological control agents against Fusarium wilt of lettuce, cause
byFusarium oxysporum f.sp.lactucae. In the presence of a very high disease incidence, the best results in terms of disease control as well as increased growth
response were shown byTrichoderma harzianum T 22 (RootShield), which, at 3 gl
−1 of substrate, provided very consistent results.F. oxysporum IF 23 gave good disease control but in two out of five trials reduced the biomass produced. Less consistent, but still significant
results were provided byF oxysporium MSA 25, at 3 gl
−1 of substrate, and byTrichoderma viride TV 1. The twoF. oxysporum agents Fo 251/2 and Fo 47 and the mixture ofT. harzianum + T. viride (Remedier) partially reduced disease incidence but were less effective than the above mentioned. Less interesting results
were offered byStreptomyces griseoviridis (Mycostop). The results obtained show that biological control can play a role in the management of Fusarium wilt of lettuce. |
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| Keywords: | AntagonisticFusarium oxysporum biocontrol agents Fusarium oxysporum f sp lactucae Lactuca sativa Trichoderma spp |
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