During disease surveys from 2019 to 2021, the authors frequently encountered leaf spot symptoms on Fischer’s ragwort plants growing at fields six locations of Gangwon Province, Korea. The displayed brown dark brown, circular or irregular spots plant leaves. revealed 1–90% diseased leaves plants. Phoma sp. was dominantly isolated lesions. Seven single-spore isolates fungus were selected and iden...

Bipolaris oryzae causes rice brown spot disease which reduces rice yield with substantial global impact. Streptomycetes isolated from rice fields of Guilan Province, Iran, showed antifungal activity against the tested pathogen. From five active Streptomyces spp. isolates, isolate G showed high antagonistic activity. To determine its taxonomical identity, its colonies character...

Bipolaris oryzae causes rice brown spot disease which reduces rice yield with substantial global impact. Streptomycetes isolated from rice fields of Guilan Province, Iran, showed antifungal activity against the tested pathogen. From five active Streptomyces spp. isolates, isolate G showed high antagonistic activity. To determine its taxonomical identity, its colonies character...

Leaf spot and blight disease was observed on two-year-old seedlings of Dendropanax morbifera (Korean name: Hwangchil tree) during July of 2008 in Jindo Island, Korea. Symptoms included yellow-brown to dark brown irregularly enlarged spots frequently located along the veins of leaves. The lesions were often surrounded by chlorotic haloes. Severe leaf blight and subsequent defoliation occurred wh...

Case Report (Dr. Leonard Tau) A 12-year-old male patient was introduced to my office, initially through a phone consultation with his mother. She explained that her son’s teeth were a normal color when they first erupted into his mouth, but portions of his teeth gradually took on an intense brown color. She stated that he had been a very happy and outgoing child who smiled a lot. However, with ...

India is an agricultural country. Paddy the main crop here on which livelihood of millions people depends. Brown spot disease caused by fungus most predominant infection that appears as oval and round lesions paddy leaves. If not addressed time, it might result in serious loss. Pesticide use for plant treatment should be limited because raises costs pollutes environment. Usage pesticide loss bo...

Alternaria brown spot is a serious disease in mandarins and mandarin hybrids. In this particular research, 9 Alterneria tolerant 2 susceptible mutant individuals obtained from series of vitro vivo studies were used. Endogenous indole acetic acid (IAA) zeatin hormone levels the noted before after inoculations order to determine hormonal variations during research. It was determined that endogeno...