Parasitism ofPhthorimaea operculella [Lep.: Gelechiidae] larvae in Queensland

Franzmann, B. A.

doi:10.1007/bf02374699

Cited by 12 publications

(18 citation statements)

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“…The progress of establishment of these parasites up to 1971 has been reported by Callan (1974). Franzmann (1980) recorded levels of parasitism in Queensland for 1975-78, but no information on the relative status of these species throughout the potato growing areas of Australia has been published since that of Callan. In view of the dearth of information on the recent distribution and abundance of these agents and their actual or potential importance to biological control of potato moth, the 1979 survey, although not specifically designed for this purpose, provided an opportunity to look at the relative incidence of parasitism and disease occurring at that time in populations of P. operculella.…”

Section: Introductionmentioning

confidence: 99%

THE INCIDENCE OF PARASITISM AND DISEASE IN FIELD POPULATIONS OF THE POTATO MOTH PHTHORIMAEA OPERCULELLA (ZELLER) IN AUSTRALIA

Briese

1981

Australian Journal of Entomology

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The incidence of parasitism and disease was recorded during a survey of Phthorimaea operculella populations from the major Australian potato growing areas. High levels of parasitism were found in most regions, though the contribution of each of the three major species showed marked geographic variation. There were also differences in the parasitism of larvae in leaves and in tubers. In some locations larvae were infected by a granulosis virus, which appeared to be endemic at a low frequency throughout the potato moth's range in Australia.

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Section: Introductionmentioning

confidence: 99%

THE INCIDENCE OF PARASITISM AND DISEASE IN FIELD POPULATIONS OF THE POTATO MOTH PHTHORIMAEA OPERCULELLA (ZELLER) IN AUSTRALIA

Briese

1981

Australian Journal of Entomology

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“…Other parasitoids like Tachinidae (Incamyia cuzcensis T.T. and Lixophaga diatraeae Towns), and more than 60 Hymenoptera (Braconidae, Encyrtidae, Eulophidae, Ichneumonidae, Mymaridae, Perilampidae, Pteromalidae, Scelionidae, and Trichogrammatidae) have also been described by several authors (Labeyrie 1959;Lloyd and Guido 1963;Jai Rao 1967;Rao 1967;Rao and Ramachandran-Nair 1967;Leong and Oatman 1968;Rao and Nagaraja 1968;Oatman et al 1969;Lloyd 1972;Odebiyi and Oatman 1972;Cruickshank and Ahmed 1973;Callan 1974;Oatman et al 1974;Oatman and Platner 1974;Cardona and Oatman 1975;Chundurwar 1977Chundurwar , 1978Odebiyi and Oatman 1977;Mitchell 1978;Divakar and Pawar 1979;Franzman 1980;Sankaran and Girling 1980;Briese 1981;Oatman 1982, 1987;Powers and Oatman 1984;Izhevskiy 1985;Horne 1990Horne , 1993. Among all parasitoids listed, there are some ecological differences; for instance, while C. desantisi oviposits in the eggs, A. subandinus and O. lepidus prefer young P. operculella larvae (Platner and Oatman 1972a).…”

Section: Parasitoids and Predatorsmentioning

confidence: 91%

The Potato Tuberworm: A Literature Review of Its Biology, Ecology, and Control

2010

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The potato tuberworm, Phthorimaea operculella (Zeller), is a worldwide pest of solanaceous crops especially devastating to potatoes. Adults mate and lay eggs in foliage or tubers throughout the growing season, preferring foliage over tubers. When foliage has naturally or artificially senesced and/or tubers are accessible, they deposit eggs in or near the eye buds. The larvae mine leaves, stems, and petioles causing irregular galleries, and excavate tunnels through tubers. Foliar damage to the potato crop usually does not result in significant yield losses but infested tubers may have reduced marketability and losses in storage may be up to 100% especially in non-refrigerated systems. The greatest risk of tuber damage occurs immediately before harvest while the crop is left in the field prior to digging; additional damage may occur in storage, if conditions are not maintained properly. Potatoes that are left in the field for any length of time can become infested. The pest is difficult to control and growers rely extensively on the use of insecticides and a variety of cultural practices. After harvest, the insect may continue to develop on tubers or volunteer plants remaining in the field as well as on other solanaceous plants. Incorporation of host plant resistance together with insecticides and appropriate biological and cultural practices may provide the best management options. This review addresses P. operculella bionomics, including origins, distribution, host range, life cycle and life stage behavior; seasonal dynamics; abiotic factors; cultural, biological, and chemical control methods; and host plant resistance.Resumen La palomilla de la papa Phthorimaea operculella (Zeller) es una plaga importante de cultivos de solanáceas en todo el mundo pero especialmente devastadora para la papa. Los adultos se aparean y ponen huevecillos en follaje o en tubérculo a lo largo del ciclo de cultivo, con preferencia de follaje sobre los tubérculos. Cuando el follaje senesce natural o artificialmente y/o los tubérculos están accesibles, las polillas depositan sus huevos en o cerca de los ojos de las yemas. Las larvas hacen minas en las hojas, los tallos y en peciolos causando galerías irregulares, y excavan túneles en los tubérculos. El daño al follaje del cultivo usualmente no resulta en pérdidas significativas de rendimiento, pero los tubérculos infestados pueden tener una reducción en el mercado y las pérdidas en el almacén pueden llegar hasta el 100% especialmente en sistemas no refrigerados. El mayor riesgo de daño en los tubérculos se presenta inmediatamente antes de la cosecha mientras el cultivo está en el campo antes de ser cosechado y transportado. Se puede presentar daño adicional en el almacén si las condiciones no se mantienen apropiadamente. Las papas que se quedan en el campo por tiempo prolongado pueden ser infestados. La plaga es difícil de controlar y los productores confían extensivamente en el uso de insecticidas y en una variedad de prácticas culturales. Después de la cosecha, el insecto pue...

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“…4) The only other species of Elasmus which has been reared from a gelechiid in Australia is E. funereus Riek, a parasitoid of Phthorimaea operculella (Zeller) on potato foliage (Franzmann 1980). E. funereus is distinguished from E. broomensis by its uniformly dark legs and the glabrous vannal fold of the fore wing.…”

Section: Discussionmentioning

confidence: 99%