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Inactivation of Botrytis cinerea inoculated into sour cherry juice, apricot and peach nectars was determined by pulsed electric fields (PEF) based on the measurement of germination tube elongation, spore germination rate and light and scanning electron (SEM) microscopic observations. With increasing electric field strength and processing time, germination tube elongation and spore germination were completely inhibited (P≤0.05). Microscopic observations revealed considerable morphological alterations such as cytoplasmic coagulation, vacuolations, hyphal shriveling and protoplast leakage. PEF processing of juice/nectars was very effective to inactivate B. cinerea. This method could be used to prevent product loss in fruit juice/nectars due to B. cinerea contamination. [ABSTRACT FROM AUTHOR]

The article focuses on alternaria leaf blight caused by Alternaria dauci on carrot in Turkey. The disease was extensive, with between 73 and 85% of fields inspected in the region being affected. Disease incidence of 65-90% was recorded in affected fields. The distribution of the disease in carrot fields was generally associated with high soil moisture levels, often corresponding to poor drainage. A fungus was consistently isolated from the margins of these lesions, onto potato carrot agar amended with streptomycin sulphate.

The article reports the occurrence of crater rot caused by Rhizoctonia carotae on carrots in Turkey. Primary symptoms seen were a band of dark brown necrosis around the carrot crown and horizontal, brown, canker-like lesions, mostly on the crown and upper roots. Small pits subsequently developed beneath the lesions, which enlarged into sunken brown crater lines with a white, flocculent mycelium produced under high humidity. Fungal colonies were initially white, but turned brown with age. Dark brown to black sclerotia were occasionally produced.