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As part of a research project on the population dynamics of a polyphagous noctuid pest, Helicoverpa armigera, on crops commonly grown in small-scale a...
Read moreThe contribution of seed reproduction to population growth of S. halepense was studied on an 80-ha maize field in Rojas province, Buenos Aires during ...
Read moreThe following is virtually the author's summary of this account of observations in southern England. Weather at the critical times of oviposition, lar...
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