The periodical cicada in WVa. . PLATE IV—Work of the Periodical Cicada, seventeen years old. in slow J growing sugar or hard maple. Showing external appearance of scars at d, e,f. ..Method of healing and resulting curly condition in specimen /, Plate II. in main stem of young tree, which in connection with conditions as shown in these specimens, indicates one probable cause of curly maple. THE PERIODICAL CICADA. 41 of the trouble, and whether or not much damage is done toapple trees in their vicinity. The illustrations. Plate III, willenable any one to readily recognize the character of the wo
The periodical cicada in WVa. . PLATE IV—Work of the Periodical Cicada, seventeen years old. in slow J growing sugar or hard maple. Showing external appearance of scars at d, e,f. ..Method of healing and resulting curly condition in specimen /, Plate II. in main stem of young tree, which in connection with conditions as shown in these specimens, indicates one probable cause of curly maple. THE PERIODICAL CICADA. 41 of the trouble, and whether or not much damage is done toapple trees in their vicinity. The illustrations. Plate III, willenable any one to readily recognize the character of the workof the insect. TREATMENT OF OLD TREES INJURED BY THE CICADA AND TREE CRICKETS In the treatment of matured or old trees which have beenbadly stung by the cicada, the prime objects to be kept inmind are a rapid healing of the wounds and the prevention ofsecondary attacks by the woolly aphis. The first object may beattained by a severe pruning of the tree during the followingwinter after the attack was made. All of the severel
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Keywords: ., bookauthorhopkinsadandrewdelmar, bookcentury1800, bookdecade1890
