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Host plant associations of insects collected in swards with and without legumes seeded by minimum tillage

Host plant associations of insects collected in swards with and without legumes seeded by minimum tillage

Environmental Entomology 11(1): 255-260

Insect populations in grass and grass-broadleaf weed swards without legumes or seeded to legumes by minimum tillage were sampled by sweep net. Seeded legumes were [Arlington red clover, Trifolium pratense L., Saranac AR alfalfa, Medicago sativa L. and Viking birdsfoot trefoil, Lotus corniculatus L.]. Swards without legumes received 168 kg of N/ha per yr. Samples taken at 5 plantings at 11 separate collections are summarized for totals collected of each 93 insect species for each sward type. Data indicate that common species are grass specialists with little known affinity for legumes or generalists which may switch to legumes as those plants become dominant community components. Roles of grass- or weed-feeding species in reducing plant competition during legume establishment may result in a net beneficial effect of insect populations.

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Accession: 001085620

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DOI: 10.1093/ee/11.1.255

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