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Discoloration caused by Verticillium wilt in the olive xylem. Photo from University of Bari, Italy.
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Discoloration caused by Verticillium wilt in the olive xylem. Photo from University of Bari, Italy.
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Discoloration caused by Verticillium wilt in the olive xylem. Photo from University of Bari, Italy.
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Symptoms of verticillium wilt induced on an olive tree by a non defoliating strain of Verticillium dahliae. Photo from University of Calabria, Italy.
