บทคัดย่องานวิจัย

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Resistance of different strains of Penicillium digitatum to imazalil treatment in California citrus packinghouses.

Dave, B.; Sales, M.; Walia, M.;

Proceedings of the Florida State Horticultural Society Year: 1990 Vol: 102 Pages: 178-179 Ref: 3 ref.

1990

บทคัดย่อ

Resistance of different strains of Penicillium digitatum to imazalil treatment in California citrus packinghouses.

Imazalil has been used to control postharvest disease of citrus in California since 1981. It gives good protection against diseases caused by P. digitatum and P. italicum. Tolerant strains of P. digitatum and P. italicum to imazalil have been reported recently. Several experiments were conducted to determine tolerance and competitiveness of these strains. Results indicate that there are some strains which are tolerant of very low levels of imazalil. However, the less sensitive strains are not able to fully compete with the sensitive strains and as a consequence such tolerant strains are of low practical significance to the citrus industry in general. The history of imazalil residues on citrus has shown that the residues are adequate to control decay. Stricter sanitation procedures and alternation of fungicides or combination uses of fungicides appear to give good control of citrus decay organisms. This paper was presented at the 102nd Annual Meeting of the Florida State Horticultural Society held at Tampa, Florida, USA, Oct. 31 - Nov 2., 1989.