S. A. Simons

TL;DR: A rigorous, relevant, and comprehensive suite of biodiversity indicators with which to track changes over time, to assess the impacts of policy and management responses, and to identify priorities for action is presented.

TL;DR: Soilborne inoculum of R. solani produced economically significant levels of stem canker and its incidence and severity varied with rotation, with most disease in 2-year and less in 4- and 6-year rotations.

TL;DR: There is no evidence to reject an SIR model with a simpler linear term for the effect of infection load on the production of healthy tissue, even though biological considerations suggest greater complexity in the relationship between disease and growth.

TL;DR: Experiments involving direct placement of inoculum at various distances from an infection court are used to estimate the probability of infection and/or disease of seminal roots of wheat by Gaeumannomyces graminis (Sacc.) Arx & Olivier var.

TL;DR: Relationships between diseases caused by Rhizoctonia solani on different parts of potato plants (Solanum tuberosum) at different stages of crop growth were investigated under selected agronomic conditions and highly positive correlations between the disease variables indicated a close relationship between the incidence of disease at each stage ofcrop growth.