Abstract
Supplementary host specificity tests were conducted with the defoliating sawfly Heteroperreyia hubrichi (Hymenoptera: Pergidae), a candidate for classical biological control of Brazilian peppertree, Schinus terebinthifolius (Sapindales: Anacardiaceae), in the United States. These tests were conducted as part of the environmental assessment required by the National Environmental Policy Act (NEPA). The suitability of the federally listed endangered native plant Rhus michauxii (Anacardiaceae) and the economically important Litchi chinensis (Sapindaceae) as potential host plants for H. hubrichi was evaluated in a series of no-choice larval development tests conducted in a Florida quarantine laboratory. Neonate larvae transferred to individual test plants failed to develop to the pupal stage on R. michauxii or L. sinensis, whereas Brazilian peppertree supported development of the sawfly to pupation. The results of the additional host specificity tests indicated these critical non-target plants are not at risk from attack by H. hubrichi if it were released in Florida, USA.
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