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Puccinia thaliae is the causal agent of canna rust, a fungal disease of Canna. Symptoms include yellow to tan spots on the plant's leaves and stems. Initial disease symptoms will result in scattered sori (clustered sporangia), eventually covering the entirety of the leaf with coalescing postulates.
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.
Small water-soaked lesions, maturing into sunken and brown spots with or without a yellow halo. May show concentric rings with purple margins. Necrotic tissue may fall out to appear shot-holed. Leaf spot on many plants and crops. Septoria: Small brown spots, that turns light tan to white in the centre. Leaf spot on many crops Bipolaris
More recently, Jani Murati, 37, was jailed for 10 months after 158 cannabis plants and a large sum of cash were found at an address in Ann Beaumont Way, in Hadleigh, Suffolk.
A suspected cannabis farm discovered by Sussex Police. More than 500,000 cannabis plants were seized in England and Wales in 2022/2023 (PA)
5. Low Humidity. Light brown spots scattered across fiddle leaf fig leaves can be caused by dry air. If the brown spots in question have a pox-like look instead of being in a single area of the ...
This mycelial layer may quickly spread to cover all of the leaves. The lower leaves are the most affected, but the mildew can appear on any above-ground part of the plant. As the disease progresses, the spots get larger and denser as large numbers of asexual spores are formed, and the mildew may spread up and down the length of the plant.
Pyrenophora tritici-repentis and Drechslera tritici-repentis is a necrotrophic plant pathogen of fungal origin, phylum Ascomycota. [1] The pathogen causes a disease originally named yellow spot but now commonly called tan spot, yellow leaf spot, yellow leaf blotch or helminthosporiosis.