Standard area diagrams (SAD) have long been used as a tool to aid the estimation of plant
disease severity, an essential variable in phytopathometry. Formal validation of SAD was not …

Asian grapevine rust (Phakopsora euvitis) is a serious disease, which causes severe leaf
necrosis and early plant defoliation. These symptoms are unusual for a strict biotrophic …

The downy mildew, caused by Plasmopora viticola, is one of the most important grapevine
(Vitis vinifera) diseases in Southern Brazil, causing defoliation and economic losses. The …

A diagrammatic scale was developed to assess the severity of northern corn leaf blight
(NCLB), which is caused by the fungus Setosphaeria turcica. The validation of this new …

A mancha alvo da soja, causada pelo fungo Corynespora cassiicola, é encontrada em
praticamente todas as regiões de cultivo de soja do Brasil e pode causar perdas …

Four disease diagram sets to aid in assessments of rice brown spot severity were developed
and evaluated with regard to accuracy and reliability of the estimates. These sets had …

Coffee leaf rust (CLR) is the most important disease in coffee and is caused by Hemileia
vastatrix. The use of a diagrammatic scale helps people more effectively evaluate rust …

A diagrammatic scale with six levels (0.1-3.0; 3.1-6.0; 6.1-12.0; 12.1-18.0; 18.1-30.0; 30.1-
49.0%) was developed, compared, and evaluated along with two other scales to measure …

Disease severity evaluation is an important decision support for adoption of strategies and
tactics for disease control. The most commonly used method to assess disease severity is …

Anthracnose is one of the most destructive grapevine diseases in warm and humid regions,
but no efficient tools are available to quantify disease symptoms in different parts of the …