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PHYTOPHTHORA . Long stem lesion on Salix alba . var . coerulea  Cricket bat willow ) , probably caused by a Phytophthora sp : root and stem damage typical of Phytophthora damage . Similar damage on about 30% of the crop ; occurred in 1973 , 74 and 76 in 6 sample trees . Stem lesions did not perennate ; no Phytophthora isolated . Location: Colchester , Essex , England .

Reference: 32624

PHYTOPHTHORA . Long stem lesion on Salix alba . var . coerulea Cricket bat willow ) , probably caused by a Phytophthora sp : root and stem damage typical of Phytophthora damage . Similar damage on about 30% of the crop ; occurred in 1973 , 74 and 76 in 6 sample trees . Stem lesions did not perennate ; no Phytophthora isolated . Location: Colchester , Essex , England .


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