Search

In September 2021, severe leaf spots were observed on Cucurbita argyrosperma plants in nine commercial fields in Cocula, Guerrero, Mexico. Conidia were similar to Curvularia, and morphological and molecular analyses of five monoconidial isolates confirmed them to be Curvularia brachyspora. Pathogenicity tests confirmed the isolates as the cause of the leaf spot. This report is the first worldwide of this pathogen causing leaf spot on C. argyrosperma. [ABSTRACT FROM AUTHOR]

Canavalia ensiformis is a Fabaceae used for soil conservation and control of weeds. The objective of this study was to identify gall wasps of C. ensiformis at Guerrero, Mexico. A survey was done in June 2022 in a crop of C. ensiformis planted to provide cover for Zea mays L. plots at Anahuac, San Marcos, Guerrero, México. Abnormal galls were found on several organs of the plants, especially the branches. Three branches from 10 plants were gathered, put into paper bags, labelled, and transported in polystyrene containers to Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP) for rearing wasps. Adults were identified based on morphological characteristics. C. ensiformis was reported for the first time as an alternate host of wasps of the genus Eurytoma. Further studies of the genus and species identification using molecular techniques are needed. [ABSTRACT FROM AUTHOR]