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Tomato brown rugose fruit virus (ToBRFV) is a plant virus in the genus Tobamovirus that was first described in 2015. It has spread rapidly since it was first noted in Jordan and Israel. The main hosts are tomato and peppers. The virus causes symptoms including mosaic and distortion of leaves and brown, wrinkly spots (rugose) on fruits.
The disease is harmful because of the mild foliar symptoms (chlorosis, necrosis, etc.) and due to this many times the pathogen goes unnoticed until the more evident symptoms on the fruit appear. This is why there are higher yield losses because symptoms only become evident during the fruiting stage right before the crops are supposed to harvested.
Taphrina deformans is a fungus and plant pathogen, and a causal agent[s] of peach leaf curl. [1] Peach trees infected with T. deformans will experience leaf puckering and distortion, acquiring a characteristic downward and inward curl.
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White rust is a disease in plants caused by the oomycete Albugo candida or one of its close relatives. Plants susceptible to this disease generally include members of the Brassica family. [1] White rust has been known to cause agricultural losses in fields cultivating members of this family including broccoli, cauliflower, and Indian mustard. [1]
Atropa bella-donna flower. Atropa bella-donna is a branching herbaceous perennial rhizomatous hemicryptophyte, often growing as a subshrub from a fleshy rootstock. Plants can reach a height of 2 m (7 ft) (more commonly 1.5 m (5 ft)), and have ovate leaves up to 18 cm (7 in) long.
One of the immediate concerns is the danger of a massive amount of pollutants flying through the air and seeping into the ground. Modern homes are full of plastics, chemicals and other synthetic ...
Because PRSV is a non-persistent virus and is consequently transmitted to healthy plants by aphids within a very short time period, insecticidal control is difficult and impractical. Once symptoms have been observed, it is already too late to spray for aphids – the disease has most likely already been transmitted to nearby healthy plants.