In 2 consecutive years, ground beetles (Coleoptera: Carabidae) were sampled in commercial organic and conventional potato fields, using pit fall traps. Four conventional and 3 organic potato fields were surveyed to determine ground beetle taxa composition. In a related study, potato fields were assigned to 1 of 4 transitional systems...
The history of entomopathogenic nematology is briefly reviewed. Topic selections include early descriptions of members
of Steinernema and Heterorhabditis, how only morphology was originally used to distinguish between the species; descriptions of the
symbiotic bacteria and elucidating their role in the nematode- insect complex, including antibiotic properties, phase variants, and...
Onion thrips, Thrips tabaci Lindeman and thrips-transmitted Iris yellow spot virus are the most significant pest complex affecting onion production in the Treasure Valley of eastern Oregon and southwestern Idaho. Thrips feeding damage and virus infection significantly reduce onion bulb size and economic returns for this high value crop. The...
This study develops an improved method for understanding
economic production relationships in small scale
fisheries. This method postulates that gross revenue is a
function of physical input quantities, and is based upon
the transcendental logarithmic function to derive factor
share equations for each of the five inputs in the model....
The worksheet is designed to show a municipal biosolids manager how many acres are needed for land application of biosolids at an agronomic rate, based on crop nitrogen (N) requirements.
The worksheet is based on a peer-reviewed Extension publication: PNW 511, Worksheet for Calculating Biosolids Application Rates in Agriculture authored...