Jul 01, 2011 · 1. Introduction. A critical goal of scientists engaged in biological control of weeds is to reduce the risk of non-target and indirect effects by releasing fewer, more host-specific, and more effective agents (Strong and Pemberton, 2001, Louda et al., 2003, Balciunas, 2004).Molecular-based approaches have much to offer in attaining this goal (Briese, 2005,
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