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Cucurbits plant viral diseases thesis

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College of Agriculture, Health and Natural Resources. There are several viruses that affect cucumbers, melons, pumpkins, squash, and other members of the cucurbit family. All are transmitted from diseased plants to healthy plants by aphids. They are transmitted from plant to plant in a non-persistant manner. This means they acquire the virus from an infected plant almost immediately but are able to infect healthy plants for only a short time, usually a few days to a week.

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‎Compendium of Cucurbit Diseases and Pests, Second Edition on Apple Books

Click here to download a PDF version of this spotlight. The disease was first observed on winter and summer squash plants in the southern U. The most severe losses from squash leaf curl occur in squash, pumpkin, and watermelon. SLCV has also been shown to infect green bean and tobacco plants, but so far only under experimental conditions after inoculation. There is a complex of SLCV strains, which are differentiated by their biological properties including host range and ability to be mechanically transmitted.

Cucurbits (Cucumber, Melon, Squash, and Pumpkin)

Aphids transmit all of these viruses with the exception of squash mosaic, which is seed transmitted. Aphids must acquire the virus from a host reservoir and are capable of transmitting it for 10 to 15 minutes in most cases. One or a combination of these viruses may affect squash.
Cucumber mosaic virus CMV is a plant pathogenic virus [1] in the family Bromoviridae. It can also be transmitted in seeds and by the parasitic weeds, Cuscuta sp. In plant tissue this virus makes characteristic viral inclusion bodies which can be diagnostic. They are hexagonal in shape Fig. The inclusions are not uniformly distributed and can be found in epidermal Figs.

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