Marking potato tuberworm (Lepidoptera: Gelecheiidae) with rubidium for dispersal studies

Moshe Coll, Shelby Jay Fleischer, David Rosen

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The potato tuberworm, Phthorimaea operculella (Zeller), is a major pest of potatoes worldwide. In Israel, this oligophagous pest also damages processing tomatoes. Correlative data suggest that the pest moves from harvested potatoes to nearby tomato fields. To measure directly the movement of moths between fields, adults need to be marked in release-recapture experiments. In the current study, we tested whether adult tuberworms could be marked with rubidium (Rb) by applying Rb chloride to the foliage of their larval food-plant. We tested for adverse effects of Rb on several fitness components of the pest in the laboratory, and then demonstrated the applicability of the technique in a mark-release-recapture experiment in the field. A single application of Rb chloride to potato was sufficiently in marking tuberworn adults, both in the laboratory and in the field. At a low application rate (3 g RbCl/liter), no adverse effect of Rb on the tuberworn was detected. However, higher application rates increased larval mortality and development time, and decreased adult size (dry weight) and longevity. Although recapture rates of both Rb- and dye-marked moths were low in a preliminary experiment, results agree with previous reports and suggest a low dispersal rate of the potato tuberworn in the field.

Original languageEnglish (US)
Pages (from-to)154-159
Number of pages6
JournalJournal of Economic Entomology
Volume90
Issue number1
DOIs
StatePublished - Jan 1 1997

Fingerprint

Phthorimaea operculella
rubidium
potato
Lepidoptera
pests
potatoes
moth
application rate
moths
chlorides
pest damage
adverse effects
chloride
tomatoes
mark-recapture studies
experiment
food plants
Israel
foliage
dyes

All Science Journal Classification (ASJC) codes

  • Ecology
  • Insect Science

Cite this

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title = "Marking potato tuberworm (Lepidoptera: Gelecheiidae) with rubidium for dispersal studies",
abstract = "The potato tuberworm, Phthorimaea operculella (Zeller), is a major pest of potatoes worldwide. In Israel, this oligophagous pest also damages processing tomatoes. Correlative data suggest that the pest moves from harvested potatoes to nearby tomato fields. To measure directly the movement of moths between fields, adults need to be marked in release-recapture experiments. In the current study, we tested whether adult tuberworms could be marked with rubidium (Rb) by applying Rb chloride to the foliage of their larval food-plant. We tested for adverse effects of Rb on several fitness components of the pest in the laboratory, and then demonstrated the applicability of the technique in a mark-release-recapture experiment in the field. A single application of Rb chloride to potato was sufficiently in marking tuberworn adults, both in the laboratory and in the field. At a low application rate (3 g RbCl/liter), no adverse effect of Rb on the tuberworn was detected. However, higher application rates increased larval mortality and development time, and decreased adult size (dry weight) and longevity. Although recapture rates of both Rb- and dye-marked moths were low in a preliminary experiment, results agree with previous reports and suggest a low dispersal rate of the potato tuberworn in the field.",
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Marking potato tuberworm (Lepidoptera : Gelecheiidae) with rubidium for dispersal studies. / Coll, Moshe; Fleischer, Shelby Jay; Rosen, David.

In: Journal of Economic Entomology, Vol. 90, No. 1, 01.01.1997, p. 154-159.

Research output: Contribution to journalArticle

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