inoculation of the plant with BCTV. This waveform is also the same waveform which is produced during phloem ingestion by beet leafhoppers. Thus, this study further lends credibility to the transmission model that suggests that beet leafhoppers transmit the BCTV when they feed on the phloem sap of healthy plants.

Transmission to non-host plants

A previous study of oviposition in the beet leafhopper has shown that the insects prefer to lay eggs on beet plants even when they prefer different host plants for feeding. In another

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