The number of cases of a devastating potato fungus continues to grow on Prince Edward Island. So far, 13 cases of late blight have been confirmed in some potato fields in Freetown, Breadalbane, Summerside, Spring Valley, Wilmot Valley, New Haven, Knutsford and Kensington. It has also been confirmed in tomato plants in the Charlottetown and Brookfield areas. Gary Linkletter is chair of the P.E.I. potato board and calls this strain of blight an aggressive one.