335 resultados para Moth


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Shipping list no.: 2002-0237-P.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Shipping list no.: 2008-0094-P.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Includes index.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Includes index.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Literature cited: p. 13.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Each plate accompanied by guard sheet with descriptive letterpress.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Issued Sept. 1978.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Combined forest pest research and development program.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

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.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Interactions between the immature stages of Diadegma semiclausum, an endolarval parasitoid of Plutella xylostella, and the fungal entomopathogen Beauveria bassiana were investigated in the laboratory. Detrimental effects of B. bassiana on D. semiclausum cocoon production and adult parasitoid emergence increased with increasing pathogen concentration and some parasitoid larvae became infected by B. bassiana within hosts. The negative impact of B. bassiana on D. semiclausum cocoon production decreased as temporal separation between parasitism and pathogen exposure increased. Adult parasitoid emergence was significantly compromised by the highest rates of B. bassiana tested even when exposure of host larvae to the pathogen was delayed until one day before predicted parasitoid cocoon formation. Parasitoid pupae were infected by the pathogen in all B. bassiana treatments which did not preclude their development. (C) 2004 Elsevier Inc. All rights reserved.