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Elizabeth Minchinton and Narelle Kita, IHD - Knoxfield, DNRE, PB 15, Ferntree Gully Business Centre, VIC 3176 Symptoms " Yellow to brown spots form on the upper leaf surface and white, round to oval blisters develop on the matching under leaf surface.
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1 and 0.4 bars and soil temperatures between 14 and 23 °C. Ascospores were first detected in mid-July to mid-August, usually before apothecia were observed in the crop, and after 712 days with soil matric potentials between 0.1 and 0.
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Carrot Leaf Blight Diseases and their Management in New York Alternaria dauci (Kuhn) Groves & Skolko Cercospora carotae (Pass.) Solheim Xanthomonas campestris pv. carotae (Kendrick) Dye B.K. Gugino, J. Carroll, J. Chen, J. Ludwig, and G.
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ackground and objectives Dark leaf spot, caused by Alternaria brassicae is an important fungal disease of vegetable brassicas especially Brussels sprouts (Brassica oleracea). The typical symptom is a black lesion the appearance of which reduces the marketability of Brussels sprout buttons.
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