Visual generalist with visual specialist phytophagous insects: host selection behaviour and application to management
1978
PROKOPY, R.J. | Owens, Ed
Our findings suggest that Hoplocampa testudinea adults (apparently monophagous) and Rhagoletis pomonella flies (oligophagous) are more specific in orientation to hue and/or form of feeding, mating, or oviposition sites on a common host (apple) than are Lygus lineolaris adults (polyphagous) on apple. We speculate that subject to varying influence by host plant chemical stimuli, many monophagous - oligophagous insects may tend to be visual specialists in comparison with polyphagous insects, especially those polyphagous species whose preferred feeding, mating, or oviposition sites within an individual plant are of diverse physical characteristics. They may tend more toward being visual generalists. Visual traps incorporating the synthetic equivalents of comparatively specific host plant visual stimuli should prove useful in monitoring and possibly even directly controlling a number of monophagous-oligophagous insects on crops.
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