OrangerV1, Main, Exploration, bibRecord, 001961

Cold Susceptibility and Disinfestation of Bactrocera invadens (Diptera: Tephritidae) in Oranges

Identifieur interne : 001961 ( Main/Exploration ); précédent : 001960; suivant : 001962

Cold Susceptibility and Disinfestation of Bactrocera invadens (Diptera: Tephritidae) in Oranges

Auteurs : T. G. Grout [Afrique du Sud] ; J. H. Daneel [Afrique du Sud] ; S. A. Mohamed [Kenya] ; S. Ekesi [Kenya] ; P. W. Nderitu [Kenya] ; P. R. Stephen [Afrique du Sud] ; V. Hattingh [Afrique du Sud]

Source :

Journal of economic entomology [ 0022-0493 ] ; 2011.

RBID : Pascal:11-0374549

Descripteurs français

Pascal (Inist)
- Froid, Sensibilité résistance, Désinfestation, Orange, Quarantaine, Diptera, Tephritidae, Bactrocera invadens.

English descriptors

KwdEn :
- Animals, Citrus sinensis (parasitology), Cold, Cold Temperature, Diptera, Disinfestation, Food Parasitology, Fruit (parasitology), Insect Control (methods), Larva (growth & development), Orange, Quarantine, Sensitivity resistance, Tephritidae.
MESH :
- growth & development : Larva.
- methods : Insect Control.
- parasitology : Citrus sinensis, Fruit.
- Animals, Cold Temperature, Food Parasitology, Tephritidae.

Abstract

To develop a cold disinfestation treatment for the fruit fly Bactrocera invadens Drew, Tsuruta & White (Diptera: Tephritidae) that is rapidly spreading across Africa, research was conducted in Nairobi, Kenya, using flies from a laboratory culture and 'Valencia' orange (Citrus sinensis L. Osbeck) as the host. The developmental rate of B. invadens in Valencia oranges was determined at 28°C, and the third instar was found to be the least susceptible of the egg and larval life stages to cold treatment at 1.1°C in oranges. When 22,449 B. invadens third instars were exposed in oranges to a cold treatment with an approximate midpoint of 1.1 ± 0.5°C, the results suggested that a period of 16 d would be worthwhile verifying on a larger scale in oranges. Results from the first replicate of 16,617 larvae showed no survivors, but the second replicate of 23,536 larvae had three survivors. Because a longer cold treatment based on a mean temperature of 1.1°C would create logistical difficulties for some export markets, further replicates were conducted at an approximate midpoint of 0.5°C and at mean hourly maximum of 0.9 ± 0.5°C, for 16 d. After three replicates, in which 65,752 B. invadens third instars in total were treated with no survivors, the Japanese requirement of 99.99% mortality at the 95% confidence level was surpassed. The following treatment protocol for B. invadens larvae in oranges can therefore be recommended: fruit pulp to be maintained at temperatures of 0.9°C or lower for 16 consecutive days.

Affiliations:

Afrique du Sud, Kenya

Le document en format XML

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<author><name sortKey="Hattingh, V" sort="Hattingh, V" uniqKey="Hattingh V" first="V." last="Hattingh">V. Hattingh</name>
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<term>Diptera</term>
<term>Disinfestation</term>
<term>Food Parasitology</term>
<term>Fruit (parasitology)</term>
<term>Insect Control (methods)</term>
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<term>Désinfestation</term>
<term>Orange</term>
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<front><div type="abstract" xml:lang="en">To develop a cold disinfestation treatment for the fruit fly Bactrocera invadens Drew, Tsuruta & White (Diptera: Tephritidae) that is rapidly spreading across Africa, research was conducted in Nairobi, Kenya, using flies from a laboratory culture and 'Valencia' orange (Citrus sinensis L. Osbeck) as the host. The developmental rate of B. invadens in Valencia oranges was determined at 28°C, and the third instar was found to be the least susceptible of the egg and larval life stages to cold treatment at 1.1°C in oranges. When 22,449 B. invadens third instars were exposed in oranges to a cold treatment with an approximate midpoint of 1.1 ± 0.5°C, the results suggested that a period of 16 d would be worthwhile verifying on a larger scale in oranges. Results from the first replicate of 16,617 larvae showed no survivors, but the second replicate of 23,536 larvae had three survivors. Because a longer cold treatment based on a mean temperature of 1.1°C would create logistical difficulties for some export markets, further replicates were conducted at an approximate midpoint of 0.5°C and at mean hourly maximum of 0.9 ± 0.5°C, for 16 d. After three replicates, in which 65,752 B. invadens third instars in total were treated with no survivors, the Japanese requirement of 99.99% mortality at the 95% confidence level was surpassed. The following treatment protocol for B. invadens larvae in oranges can therefore be recommended: fruit pulp to be maintained at temperatures of 0.9°C or lower for 16 consecutive days.</div>
</front>
</TEI>
<affiliations><list><country><li>Afrique du Sud</li>
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<tree><country name="Afrique du Sud"><noRegion><name sortKey="Grout, T G" sort="Grout, T G" uniqKey="Grout T" first="T. G." last="Grout">T. G. Grout</name>
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<name sortKey="Daneel, J H" sort="Daneel, J H" uniqKey="Daneel J" first="J. H." last="Daneel">J. H. Daneel</name>
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<name sortKey="Stephen, P R" sort="Stephen, P R" uniqKey="Stephen P" first="P. R." last="Stephen">P. R. Stephen</name>
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</record>

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Cold Susceptibility and Disinfestation of Bactrocera invadens (Diptera: Tephritidae) in Oranges

Cold Susceptibility and Disinfestation of Bactrocera invadens (Diptera: Tephritidae) in Oranges

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

	Serveur d'exploration sur l'oranger
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