Field studies on halo-blight of beans (Pseudomonas phaseolicola) and its control by foliar sprays |
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Authors: | J. D. TAYLOR |
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Affiliation: | National Vegetable Research Station, Wellesbourne, Warwick |
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Abstract: | In 1968 when conditions were favourable for the spread of infection (rainfall 243 mm June-August), halo-blight of beans initiated from 0.38% primary infection produced 33.8% infected pods but in 1969 (rainfall 112 mm June -August+38 mm irrigation water), a similar level of primary infection resulted in only 3.2% infected pods. In both years plant and pod infection were reduced by approximately 90% by sprays of streptomycin sulphate or copper oxychloride (0.1% a.i. 60 gal/acre (675 l/ha)) applied every 10 days from seedling emergence to flowering time. |
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