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Fig. 11.4. The number of tobacco budworms (Heliothis virescens) captured by paper wasps (Polistes arizonensis) on the two host-plants, sunflower (Helianthus annuus) and groundcherry (Physalis pubescens) on eight different days. The two host-plant species were set up in a paired-choice test with one caterpillar on each; data from 20 wasps were recorded on each day. Capture rate was significantly different between the two host species (p < 0.001). (Figure from Geitzenauer & Bernays 1996.)

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