Capacidade de parasitismo de Trichogramma exiguum Pinto & Platner, 1978 (Hymenoptera: Trichogrammatidae) em ovos de Plutella xylostella (L., 1758) (Lepidoptera: Plutellidae) em diferentes temperaturas

Content Provider	Semantic Scholar
Author	Pereira, Fabrício Fagundes Barros, Reginaldo Pratissoli, Dirceu Pereira, Cácia Leila Tigre Vianna, Ulysses Rodrigues Zanuncio, José Cola
Copyright Year	2007
Abstract	The parasitism capacity of Trichogramma exiguum Pinto & Platner, 1978 (Hymenoptera: Trichogrammatidae) on eggs of Plutella xylostella (L., 1758) (Lepidoptera: Plutellidae) was studied, under temperatures of 18, 20, 22, 25, 28, 30 and 32°C aiming at evaluating the number of days with parasitism, cumulated parasitism, total number of eggs parasited per female and their longevity. Parasitism during the first 24 hours ranged from 1.5 to 11.7 eggs of P. xylostella per T. exiguum female in the range of 18 to 32°C. Cumulated egg parasitism of P. xylostella by T. exiguum reached 80% after 10, 7, 8, 5, 5, 4 and 5 days at 18, 20, 22, 25, 28, 30 and 32°C. Higher parasitism rates were recorded at 25, 30 and 32°C while longevity of T. exiguum females varied from 4.2 to 7.4 days under temperatures of 18 to 32°C.
Starting Page	297
Ending Page	303
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1590/S0103-84782007000200001
Volume Number	37
Alternate Webpage(s)	http://www.scielo.br/pdf/cagro/v29n2/a03.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article