The genome of the nuclear polyhedrosis virus which infects the
larvae of the tussock moth, the lepidopteran, Hemerocampa
pseudotsugata, was isolated, identified as deoxyribonucleic acid, and
characterized in terms of its physical and biological properties. An
isolation procedure for the viral DNA was established which consisted
of the following steps:...
This investigation was initiated in an attempt to delineate
some factors affecting the adsorption of poliovirus to soil particles
in seawater. The results could have significance in the development
of assay procedures for viral contaminants in natural waters.
A sample of marine sediment, obtained from an estuary near
Purdy, Washington,...
One hundred and fourty-one lambs showing signs of pneumonia
and/or enteritis from four different flocks in western Oregon were
sampled for virus isolation. Two ovine adenoviruses, antigenically
distinct from each other and from bovine adenoviruses, were
isolated from the nasal mucosa and feces of two lambs. The lambs
were showing...
A study of mortality, food consumption, food utilization, and
polyhedral production following single and simultaneous challenges
of the variegated cutworm, Peridroma saucia (Hubner), with DDT
and a nuclear polyhedrosis virus was made. Fourth instar larvae
were challenged topically with three levels of DDT and per os with
three levels of...