Development of a mite bioassay to evaluate plant resistance and its use in determining regeneration of spider mite resistance

J. Harman; P. Paul; R. Craig; D. Cox-Foster; J. Medford; R. O. Mumma

doi:10.1046/j.1570-7458.1996.00100.x

Development of a mite bioassay to evaluate plant resistance and its use in determining regeneration of spider mite resistance

J. Harman, P. Paul, R. Craig, D. Cox-Foster, J. Medford, R. O. Mumma

Entomology

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The zonal geranium (Pelargonium xhortorum) possesses tall glandular trichomes that secrete anacardic acids, a viscous, sticky exudate which has been suggested as the primary mechanism in two-spotted spider mite (Tetranychus urticae Koch) resistance. A new bioassay was developed using small Plexiglas® cylinders as chambers for evaluating the resistance of geranium leaves to the two-spotted spider mite. This bioassay was easy to prepare, required only 24 hours to conduct, exhibited no problems with desiccation, condensation, or mite accountability, and yielded reproducible results. This bioassay was then used to study the regeneration of resistance of attached geranium leaves after they were made mite-susceptible by removing the excreted anacardic acids with water. Washed leaves regained full resistance after 14 days.

Original language	English (US)
Pages (from-to)	301-305
Number of pages	5
Journal	Entomologia Experimentalis et Applicata
Volume	81
Issue number	3
DOIs	https://doi.org/10.1046/j.1570-7458.1996.00100.x
State	Published - Jan 1 1996

All Science Journal Classification (ASJC) codes

Ecology, Evolution, Behavior and Systematics
Insect Science

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10.1046/j.1570-7458.1996.00100.x

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abstract = "The zonal geranium (Pelargonium xhortorum) possesses tall glandular trichomes that secrete anacardic acids, a viscous, sticky exudate which has been suggested as the primary mechanism in two-spotted spider mite (Tetranychus urticae Koch) resistance. A new bioassay was developed using small Plexiglas{\textregistered} cylinders as chambers for evaluating the resistance of geranium leaves to the two-spotted spider mite. This bioassay was easy to prepare, required only 24 hours to conduct, exhibited no problems with desiccation, condensation, or mite accountability, and yielded reproducible results. This bioassay was then used to study the regeneration of resistance of attached geranium leaves after they were made mite-susceptible by removing the excreted anacardic acids with water. Washed leaves regained full resistance after 14 days.",

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AU - Harman, J.

AU - Paul, P.

AU - Craig, R.

AU - Cox-Foster, D.

AU - Medford, J.

AU - Mumma, R. O.

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Development of a mite bioassay to evaluate plant resistance and its use in determining regeneration of spider mite resistance

Abstract

All Science Journal Classification (ASJC) codes

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