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Septoria cannabis is a species of plant pathogen from the genus Septoria that causes the disease commonly known as Septoria leaf spot. Early symptoms of infection are concentric white lesions on the vegetative leaves of cannabis plants, followed by chlorosis and necrosis of the leaf until it is ultimately overcome by disease and all living cells are then killed.
Pecan scab disease is the most economically damaging disease of pecans in the Southeastern United States, which is one of the major pecan producing regions in the world. [14] It infects the leaves, shucks, and nuts thus reducing crop yield. In addition, the cost of fungicide application reduces the profitability of pecan production.
Fungal diseases; Bipolaris leaf spot Bipolaris setariae: Cercospora leaf spot Cercospora penniseti: Curvularia leaf spot Curvularia penniseti: Dactuliophora leaf spot Dactuliophora elongata: Downy mildew Sclerospora graminicola: Downy mildew Plasmopara penniseti: Drechslera leaf spot Drechslera dematioidea: Ergot Claviceps fusiformis ...
In the United States, $2.5 to 3 million dollars are lost because of peach leaf curl. Sixty to ninety percent of peach shoots in Italy can be infected by T. deformans. [14] Although peach leaf curl is mostly manageable with fungicide spraying in dry climates, [4] improper timing or incomplete coverage of the crop can result in control failure. [11]
Early leaf spot of peanut can be treated through the use of fungicides applied at the very early pod stage, and applied every two weeks thereafter. [4] After analyzing the incidence and severity of the disease, strip-tillage techniques have also proven to be effective in delaying an epidemic by reducing the amount of initial infection. [ 9 ]
However, according to the U.S. Department of Agriculture's FoodData Central database, as of a few years ago, more than 8,000 branded food products still contained Red Dye No. 3. Common food ...
Pages in category "Leaf diseases" The following 33 pages are in this category, out of 33 total. This list may not reflect recent changes. A. Alternaria leaf spot;
Mycosphaerella musicola was first reported from Java in 1902 and by 1962 was found in most banana growing regions of the world. Although it is spread over short distances by conidia and ascospores, over long distances it is the movement of infected germplasm such as diseased leaves and suckers that is likely to be responsible.