Environmental Entomology (1999) 28, 973-978

Peter J. Landolt, J.H. Tumlinson and D.H. Alborn (1999)
Attraction of Colorado potato beetle (Coleoptera: Chrysomelidae) to damaged and chemically induced potato plants
Environmental Entomology 28 (6), 973-978
Abstract: Unmated adult female Colorado potato beetles, Leptinotarsa decemlineata (Say), were attracted to damaged and chemically treated potato plants in an olfactometer. Significantly more beetles moved upwind to potato plants with damage from larval Colorado potato beetle compared with undamaged plants. More beetles moved upwind toward potato plants treated with regurgitant from Colorado potato beetle larvae or cabbage looper larvae, Trichoplusia ni (Hübner), compared with undamaged plants. Greater numbers of beetles moved upwind toward potato plants treated with N-(17-hydroxylinolenoyl)-L-glutamine (volicitin) or to plants treated with the plant hormone methyl jasmonate, compared with untreated plants. Mechanical injury to potato foliage did not increase beetle attraction when plants were tested 1 or 24 h after injury. These results indicate that volatile chemicals produced by the plant in response to stimuli from feeding larvae enhance the attractiveness of the plant to female Colorado potato beetles.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: English)
Link to article at publishers website
Database assignments for author(s): Peter J. Landolt, James H. Tumlinson

Research topic(s) for pests/diseases/weeds:
pheromones/attractants/traps
environment - cropping system/rotation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Leptinotarsa decemlineata	Potato (Solanum tuberosum)