Abstract
Oviposition by brood X periodical cicadas, Magicicada septendecim (L.), in woody ornamentals in 1953 and 1970 occurred in 69 of 84 species and cultivars. Current season wilting and death of branches resulted from oviposition wounds in 24 of the 69 species. Physiological effects the same year included sharply curved branches due to greater growth on the uninjured than the injured side of branches. Healing of oviposition wounds during the 2 years following 1953 or 1970 varied depending on the species or cultivar involved, from none to rough partial healing with stunted growth and reduced flowering, to rapid healing and complete recovery. Incompletely healed oviposition sites were usually associated with retarded growth distal to the site and, in some species, with progressive dieback. Heartwood decay or discoloration occurred at and beyond the oviposition sites and in some species progressed from the branches to the main stem. Rejuvenation of top growth was accomplished by pruning out injured or dead branches to force new lateral branches.
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