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Inhibition of Colletotrichum abscissum (a-c) and Phyllosticta citricarpa growth (d-f) and development of citrus black spot (g-i) and post-bloom fruit drop (j-l) symptoms by (–)-(3R,4R)-cis-4-hydroxy-5-methylmellein (5). a, d, g and j) control with only the phytopathogen; b, e, h and k) treatment with carbendazim (derosal); c, f, i and l) treatment with (–)-(3R,4R)-cis-4hydroxy-5-methylmellein (5). Note: Red arrow: necrotic zone; White arrow: fungal growth.
