Host phenology constrains the performance of European pine sawfly larvae: The role of foliar nutrients and chemical defenses
Rodrigo A. Chorbadjian, firstname.lastname@example.org and Daniel A. Herms, email@example.com. Ohio State University - OARDC, Department of Entomology, 1680 Madison Ave, Wooster, OH
Although pine trees hold their foliage all year, the European pine sawfly, a destructive insect pest of pine, only feeds during a narrow “window” of time in early spring. We tested the hypothesis that the life cycle of European pine sawfly is constrained to a narrow temporal window in early spring by phenological changes in plant quality that results in a limited period of host suitability. Consistent with the predictions of the phenological window hypothesis, larval growth and survival decreased as host-insect synchronicity was modified. Corresponding phenological changes in host chemistry are also being quantified.
Species 1: Hymenoptera Diprionidae Neodiprionsertifer (European pine sawfly)