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Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of ascomycete fungi in the order Erysiphales. Powdery mildew is one of the easier plant diseases to identify, as the signs of the causal pathogen are quite distinctive. Infected plants display white powdery spots ...
Rust fungi grow intracellularly, and make spore-producing fruiting bodies within or, more often, on the surfaces of affected plant parts. [3] Some rust species form perennial systemic infections that may cause plant deformities such as growth retardation, witch's broom, stem canker, galls, or hypertrophy of affected plant parts.
Cannabis indica is an annual plant species in the family Cannabaceae [1] indigenous to the Hindu Kush mountains of Southern Asia. [2] The plant produces large amounts of tetrahydrocannabinol (THC) [ 3 ] [ better source needed ] and tetrahydrocannabivarin (THCV), with total cannabinoid levels being as high as 53.7% [ scientific citation needed ] .
A dried cannabis flower. The short-term effects of cannabis are caused by many chemical compounds in the cannabis plant, including 113 [clarification needed] different cannabinoids, such as tetrahydrocannabinol (THC), and 120 terpenes, [1] which allow its drug to have various psychological and physiological effects on the human body.
Canna (foliage group) 'Auguste Ferrier'. The plants are large tropical and subtropical herbaceous perennials with a rhizomatous rootstock. The broad, flat, alternate leaves that are such a feature of these plants, grow out of a stem in a long, narrow roll and then unfurl. The leaves are typically solid green, but some cultivars have glaucose ...
Naohidemyces vaccinii is a basidiomycete rust fungi with a number of different synonyms, including Pucciniastrum vaccinii[ 2] and Pucciniastrum myrtilli, [ 3] but was moved to the Naohidemyces genus due to its dome-shaped covering over the aecia. [ 4] N. vaccinii is now thought to be the western form of the fungi, and Thekopsora minima as the ...
e. Cultivation of cannabis is the production of cannabis infructescences ("buds" or "leaves"). Cultivation techniques for other purposes (such as hemp production) differ. In the United States, all cannabis products in a regulated market must be grown in the state where they are sold because federal law continues to ban interstate cannabis sales.
A leaf spot is a limited, discoloured, diseased area of a leaf that is caused by fungal, bacterial or viral plant diseases, or by injuries from nematodes, insects, environmental factors, toxicity or herbicides. These discoloured spots or lesions often have a centre of necrosis (cell death). [ 1 ] Symptoms can overlap across causal agents ...