Influence of host on larval survival, feeding habits, and adult fecundity of the carpenterworm (Lepidoptera: Cossidae).
Solomon J.D.
Carpenterworm, Prionoxystus robiniae (Peck), survival ranged from 0-86% among 15 southern, bottomland hardwood host species. Carpenterworm survival, rate of development, and fecundity were generally greatest in the oaks (Quercus spp.), cottonwood (Populus deltoides Bartr. ex Marsh.), and boxelder (Acer negundo L.); they were intermediate in American elm (Ulmus americana L.) andgreen ash (Fraxinus pennsylvanica Marsh.), and poorest in sugarberry (Celtis laevigata Willd.) and black willow (Salix nigra Marsh.). Carpenterworms did not survive in sycamore (Platanus occidentalis L.), sweetgum (Liquidambar styraciflua L.), red maple (Acer rubrum L.), persimmon (Diospyros virginiana L.), water hickory (Carya aquatica (Michx. f.)Nutt.), or red mulberry (Morus ruba L.). Favored host species usually had smaller, more uniform cambial cavities, whereas less perferred species had larger, more irregularly shaped cavities with long, narrow lateral extensions. Gallery lengths and diameters varied little among host species but were significantly shortest for 1-yr males and longest for 2-yr females.
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