Excerpt from Instar Discrimination of Field-Collected Larvae Through Analysis of Frequency Distribution Curves of Head Capsule Widths Using the Program Peakfit<br/><br/>Entomologists have long recognized the value of knowing the distribution of instars within a population at a given time or to what instar a particular larva should be assigned. This knowledge is particularly important to economic entomologists, who are concerned with when to initiate control measures, and to students of life tables, who are concerned with what and when biological agents exert their highest efficacy against their insect hosts.
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