Post harvest diseases fruits and vegetables - Xavier University ...

FREEDOM PALESTINE FREEDOM PALESTINE FREEDOM PALESTINE
Biological Control 231
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• Paedlomyces
li Iprodione 0.05%
The treatment
Fig. 38. The antifungal activity of Paedlomyces variotii compared with a
conventional fungicide, iprodione, on lemon fruit. Statistical differences (at p=
0.05) are indicated by different letters through the application of the Duncan's
Multiple Range Test. (Reproduced from Pratella and Mari, 1993 with
permission of Elsevier Science).
Geotrichum candidum (Chalutz and Wilson, 1990); of B. cinerea in apples
(GuUino et al., 1992; Mercier and Wilson, 1995; Roberts, 1990;
Wisniewski et al., 1988); of B. cinerea, P. expansum and Phialophora
malorum in pears (Chand-Goyal and Spotts, 1996a; Sugar and Spotts,
1999); of P. expansum in apples and nectarines (Wilson et al., 1993; Lurie
et al., 1995), and B. cinerea, R. stolonifer and A alternata in tomatoes
(Chalutz et al., 1991). However, not all the pathogens react similarly to a
given antagonist. For instance, under natural infection conditions,
dipping grapes in a cell suspension of yeasts of the genera Kloeckera and
Candida, was effective in controlling Rhizopus decay but had no effect on
Aspergillus decay caused by A. niger in storage (McLaughlin et al., 1992).
Experiments focused on B, cinerea indicated that the efficacy of the
antagonist was affected both by the concentration of yeast cells in the
wound and by the number of pathogen spores used for inoculation. When
wound inoculation was done with a high concentration of Botrytis spores
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