Penicillium contamination and effectiveness of chemical disinfestation in citrus packinghouse in Greece
1987
Chitzanidou, A. (Benaki Phytopathological Inst., Kifisia-Athens (Greece)) | Riethmacher, G. | Kranz, J. (Justus-Leibig Univ., Giessen (Germany, F.R.) Tropeninstitut)
The spore load of Penicillium digitatum italicum in the air of two citrus packinghouses was low. Relatively higher figures of spores were found, when decayed fruits were present in the sampling sites. Among equipment surfaces examined the highest Penicillium infestation was noticed on fruit boxes during late working season. Spores of Penicillium digitatum and Penicillium italicum adherent on plastic slides were 100% eradicated when the slides were dipped in Captan, Imazalil, Guazatine, Sodium orthophenylphenate (SOPP), hot Borax solution, Quaternary ammonium compound, Quaternary ammonium compound + Imidazole and Formaldehyde. When Penicillium contaminated surfaces were washed with the above disinfestants Captan, Guazatine, SOPP and Quaternary ammonium compound + Imidazole gave the best control. Formaldehyde and Driol fumigation applied in packinghouse rooms reduced the number of viable spores on Penicillium cultures, but was less effective against airborne spores. The effect of Driol against Penicillium spores on cultures and on plastic surfaces was equally satisfactory, when the duration of fumigation was either 20 or 4 h. The number of viable airborne spores in driol fumigated rooms increased after the floor was swept
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