Potential of a Nuclear Polyhedrosis Virus for Control of the Velvetbean Caterpillar in Soybean12

摘要: A nuclear polyhedrosis virus was isolated from larvae of Anticarsia gemmatalis Hubner, collected Chapeco, Santa Catarina in southern Brazil. Electron microscope studies revealed that the multiply embedded with 1–11 virions/envelope. Average size polyhedral bodies 1.31 µm and virions, 195×25 nm. Infectivity an effective pathogen at dosages as low 17 PIB’s/larva. Mortality occurred 8–12 days 26.7°C. In small plot field tests, 49 LE/ha significantly reduced populations A. .