Evaluation of the effectiveness of some general predators at different predatos-prey densites, with special reference to their attack on Heliothis zea (Boddie) - Tejada, Luis Orlando (Riverside, Cal. : The author, 1971)
Tesis (Ph. D.) -- Univ. of California
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Keywords: Control biológico de insectos; Heliothis (Helicoverpa) zea