335 resultados para Coddling moth.


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Shipping list no.: 2001-0206-P.

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Shipping list no.: 2002-0237-P.

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Shipping list no.: 2008-0094-P.

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Includes index.

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Mode of access: Internet.

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Literature cited: p. 13.

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Each plate accompanied by guard sheet with descriptive letterpress.

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Issued Sept. 1978.

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Combined forest pest research and development program.

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Field surveys of egg parasitoids of the diamondback moth, Plutella xylostella, were conducted at Redlands and Gatton, south-east Queensland. Eggs of P. xylostella were present all year round in both localities, and parasitized eggs were consistently found between late spring and early winter. Percent parasitism in the range 30-75% was recorded on many occasions, although rates less than 10% were more common. The major parasitoids included Trichogrammatoidea bactrae Nagaraja and Trichogramma pretiosum Riley. Laboratory evaluation showed that the T. pretiosum from Gatton has a high capacity to parasitize P. xylostella eggs under suitable conditions. This study represents the first record of egg parasitoids of P. xylostella from Australia.