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Watermelon mosaic virus (WMV) also known as Marrow mosaic virus (Raychaudhuri and Varma, 1975; Varma, 1988), Melon mosaic virus (Iwaki et al., 1984; Komuro, 1962), and until recently Watermelon mosaic virus type 2 (WMV-2), [1] is a plant pathogenic virus [2] that causes viral infection (sometimes referred to as watermelon Mosaic disease) in many different plants.
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.
First, there is the direct injury they cause to the plants as they feed on the tissues; a reduction in leaf surface available for photosynthesis, distortion of growing shoots, a diminution of the plant's growth and vigour, and the wilting of shoots and branches caused by the insects' tunneling activities.
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.
Some species are predatory, but most of them feed on pollen and the chloroplasts harvested from the outer layer of plant epidermal and mesophyll cells. They prefer tender parts of the plant, such as buds, flowers and new leaves. [38] [39] Besides feeding on plant tissues, the common blossom thrips feeds on pollen grains and on the eggs of mites ...
Winter is the fastest warming season "What we know about winter temperature trends is that winter is the fastest-warming season across most of the United States – and particularly so east of the ...
Below is an extensive, if incomplete, list of plants containing one or more poisonous parts that pose a serious risk of illness, injury, or death to humans or domestic animals. There is significant overlap between plants considered poisonous and those with psychotropic properties , some of which are toxic enough to present serious health risks ...
Because being a drug addict is a full-time job, and being in Jane’s Addiction is a full-time job. And now I was free of all those things.” With no demands on their time, they could hunker down ...