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- Vasconcelos, S.D.; Cory, J.S.; Speight, M.R.; Williams, T.
- Neotropical entomology 2002 v.31 no.3 pp. 391-396
- viral insecticides; insect pests; Baculoviridae; biological control agents; Mamestra brassicae; population density; larvae; insect control; virulence; mortality; biological control; crops; Germany
- ... The effects of stage structure and host density on baculovirus horizontal transmission were examined in the laboratory using larvae of the cabbage moth, Mamestra brassicae L. (Lepidoptera: Noctuidae). Insects were reared at three instar combinations and three host densities in closed containers with infected larvae. Insects were observed daily and the number of deaths and time to death were record ...
- Barreto, M.R.; Guimaraes, C.T.; Teixeira, F.F.; Paiva, E.; Valicente, F.H.
- Neotropical entomology 2005 v.34 no.1 pp. 67-75
- Baculoviridae; biological control agents; genetic distance; genetic polymorphism; genetic variation; biological control; insect control; Spodoptera frugiperda; moths; insect pests; plant pests; larvae; mortality; larval development; pupal development; duration; lethal dose 50; random amplified polymorphic DNA technique
- ... The total of 22 Baculovirus isolates surveyed in different corn producing regions in Brazil were used against fall armyworm, Spodoptera frugiperda (J.E. Smith). The viruses were purified and their suspensions were used to feed fall armyworm larvae from 4th and 5th instar. The mortality rate was checked daily and the infected larvae were frost after death, what generally occurred between the 5th an ...