https://www.selleckchem.com/products/triapine.html Overall, this study provided a systematic, rapid, and simple method to obtain a large number of conidia of F. graminearum.Wild blackberry species (Rubus spp. L.; Rosaceae) represents an invaluable source of genes for the generation of new varieties, but also serve as a primary source of disease inoculum. During April of 2020, symptoms of powdery mildew were observed on four populations of wild blackberry species located in the states of Chiapas (16°59'11"N, 92°59'07"W; 16°47'08"N, 92°31'05"W) and Michoacán (19°37'17"N, 100°08'59"W; 19°29'25"N, 101°32'54"W), Mexico. Signs of the pathogen were white powdery masses mainly on the top of new shoots. Symptoms included yellowing, necrosis, and early defoliation of the plants. Hyphae were tin-walled, hyaline, smooth, and 4.0-9.0 mm wide. Appressoria were indistinct -to- nipple-shaped. Conidiophores (n=30, 75-225 × 10.5-13.5 μm) were straight, and unbranched with cylindrical foot cells (n=30, 31.5-158 × 8-13.5 μm), straight, somewhat widening upwards, followed by 1-3 shorter cells. Conidia (n=100; 25.5-38.5 × 9.5-22.5 μm) were catenulate, ellipsoid-ovoid -to- doliiform, containing fibrosding to Farr and Rossman (2021). The primary source of inoculum of powdery mildew for commercial plantings is wild blackberry plants from noncultivated areas and may warrant control of wild populations.Fusarium head blight (FHB) is a devastating disease of wheat and barley. In the US, a significant long-term investment in breeding FHB resistant cultivars began after the 1990s. However, to this date, no study has been performed to understand and monitor the rate of genetic progress in FHB resistance as a result of this investment. Using 20 years of data (1998 to 2018) from the Northern Uniform (NU) and Preliminarily Northern Uniform (PNU) winter wheat scab nurseries which consisted of 1068 genotypes originating from 9 different institutions, we studied the genetic trends in FHB resistance with