Latin Square designs in field experiments involving insect sex attractants

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Abstract
Interactions between insect sex attractant traps are of ecological interest in themselves, but may cause problems in field experiments in which attractants, or control measures, are compared quantitatively. Some of these problems are solved by experimental designs based on the Latin Square. The applicability of the designs to research involving comparison of attractants, effectiveness of control measures and attractant trap interactions is discussed, and examples are given with field data. Efficiencies of different designs are compared using data from fifteen experiments. Disadvantages and extensions of the design are discussed. Latin Square designs are simple, practical, and usually more efficient than other designs.