Plant Disease (2000) 84, 1221-1224

H.A. Hobbs, D.M. Eastburn, C.J. D'Arcy, J.D. Kindhart, J.B. Masiunas, D.J. Voegtlin, R.A. Weinzierl and N.K. McCoppin (2000)
Solanaceous weeds as possible sources of Cucumber mosaic virus in Southern Illinois for aphid transmission to pepper
Plant Disease 84 (11), 1221-1224
Abstract: Over 5,000 individual plants representing approximately 55 species from an area in southern Illinois where Cucumber mosaic virus (CMV) has been a major problem in pepper (Capsicum annuum) were tested for the presence of CMV by enzyme-linked immunosorbent assay (ELISA). Representative ELISA-positive samples were checked by western blot tests to confirm virus-specific reactions. Nearly all of the infected plants detected were either Solanum ptycanthum (eastern black nightshade) or Physalis spp. (principally P. heterophylla, groundcherry). Over 1,000 pepper transplants and approximately 500 tomato transplants, collected prior to planting, were negative for CMV by ELISA. In aphid transmission (arena) experiments, all five aphid species tested were capable of transmitting CMV from nightshade to pepper: Aphis fabae subsp. solanella, Aphis gossypii, Myzus persicae, Rhopalosiphum padi, and Sitobion avenae. Aphis fabae subsp. solanella, A. gossypii, and A. nerii were able to transmit CMV from P. heterophylla to pepper. Aphis fabae subsp. solanella was commonly found colonizing nightshade from May through October in southern Illinois.
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Database assignments for author(s): John B. Masiunas

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
transmission/dispersal of plant diseases

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aphis fabae		U.S.A. (mid N)
	Cucumber mosaic virus	Green pepper/chilli (Capsicum)	U.S.A. (mid N)