Resistance to the Potato Leafhopper in Lima Bean Lines, Interspecific Phaseolus Crosses, Phaseolus spp., the Cowpea, and the Bonavist Bean

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Abstract
Nineteen lima bean lines were resistant to hopper burn, although the varieties differed in resistance to nymphal infestation. All plants or interspecific crosses of resistant and susceptible species were susceptible to both hopper burn and nymphal infestations. Unidentified Phaseolus species differed in their reaction to both nymphal infestations and hopper burn injury. The Bonavist bean was resistant to hopper burn but susceptible to nymphal infestation. Although cowpea lines exhibited tolerance they were susceptible to nymphal infestations and hopper burn injury.

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