Detection of aphid remains in predatory insects and spiders by ELISA.

Author Crook, N.E. & Sunderland, K.D.
Citation Crook, N.E. & Sunderland, K.D. (1984). Detection of aphid remains in predatory insects and spiders by ELISA. Annals of Applied Biology, 105: 413-422.

Abstract

An ELISA was developed which would detect and quantify ingested aphids in predators found in and around cereal crops. The detection limit of the assay was less than one hundredth of an homogenised adult aphid. Tests with 13 species of aphid showed that those which had been used as the principal immunogens reacted most strongly in the assay. Nearly a hundred species of invertebrates, both predators and alternative prey, have been tested in the assay and no evidence of significant cross-reaction was found with any of these species or with a number of samples of plant material on which aphids may be found. Aphid material could still be detected in predators which had been stored for up to 7 days in 4% formalin or 70% ethanol.

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