Abstract
Field experiments were conducted in 1965 at Farmingdale, New York, to evaluate reflective materials used as soil mulches to repel dispersing alate aphids and thus reduce the spread of cucumber mosaic virus (CMV) in gladiolus plantings. Mulching with aluminum foil laminated to paper and asphalt showered with small pieces of aluminum foil reduced catches of winged aphids in yellow-pan water traps by 87-97%. White polyethylene reduced catches 88%. Strips of reflective material 2 feet wide were more effective than strips 1 foot wide. Mulching on both sides of the rows opposed to mulching on 1 side was necessary for maximum protection. Reduction in spread of CMV in the gladiolus plantings was proportional to the effectiveness of the materials as repellents of aphids.
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