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Since the 1970s and 1980s, urban decay has been a phenomenon associated with some Western cities, especially in North America and parts of Europe.

Desolate cityscape known as greyfield land or urban prairie.Elevated levels of pollution (e.g., air pollution, noise pollution, water pollution, and light pollution).Large and/or less regulated populations of urban wildlife (e.g., abandoned pets, feral animals, and semi-feral animals).Crime (e.g., gang activity, corruption, and drug-related crime).

Low overall living standards or quality of life.Urban decay can include the following aspects: There is no single process that leads to urban decay which is why it can be hard to encapsulate its magnitude. Urban decay (also known as urban rot, urban death or urban blight) is the sociological process by which a previously functioning city, or part of a city, falls into disrepair and decrepitude. The terms "BROKEN PROMISES", "BROKEN TREATIES", and "DECAY" can be seen painted on the walls of these buildings. There are more varieties that you can try, so do your research before planting.Charlotte Street in the Bronx, New York City in August 1980. Tammy Sons recommends some further blight resistant tomato varieties: 'Tommy Toes are heirloom red tiny tomatoes, robust in flavor and very juicy Legend variety is a red beefsteak and a favorite of most commercial growers Juliet is a small hybrid red tomato and Manyel is a yellow tomato also low in acid.' 'This blight resistant beefsteak tomato is sweeter than other beefsteak varieties.' 'With super blight resistance, this variety is ideal for growing outdoors.' This plant is high yielding, producing a mass of brightly, rich orange tomatoes.' 'This is the world’s first blight resistant orange fruited variety. Simon Crawford lists the following varieties: There are a number of varieties that have been bred with blight resistance. 'Many modern tomato varieties have made growing outdoor tomatoes easier because of earlier ripening and improved disease resistance,' says Simon Crawford.

(Image credit: Future / Annaick Guitteny) Grow blight resistant tomato varieties Ensure potatoes and tomatoes are not planted in the same soil for successive years. Clear as many old potatoes as possible from a plot, ' advises Simon Crawford. 'Proper composting of plant waste is of paramount importance and ‘plant dumps’ must be eliminated in garden and allotment situations to reduce infection. We've found that history will repeat itself,' says Tammy Sons 'Tomato blight spores can stay in the ground for for 3 to 4 years. Never plant tomatoes in soil or compost that has previously contained diseased plants.

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Plant tomatoes in a disease free location.

Try to water the soil only and keep the leaves and plants dry. This is to avoid the plants sitting damp all night. This avoids leaves resting on damp soil, and also helps air circulation and speeds the ripening of tomatoes by providing them with maximum sun exposure.

Remove lower leaves as the fruits develop.

'Bush varieties grown in pots can be trimmed and partially supported with a bamboo cane to avoid a dense mass of foliage,' says Simon Crawford. Support bush tomato plants with a stake to keep their leaves off the soil, or tie up cordon tomatoes regularly with soft twine to improve air circulation. Likewise, pick a well ventilated spot for growing the tomatoes outside. If growing tomato plants in a greenhouse or polytunnel, avoid these becoming too humid by keeping them well ventilated.

Blight definition how to#

So learn how to prune tomato plants properly. 'Environmental control must focus on reducing the likelihood of leaves remaining wet for an extended period, so trimming foliage and side-shoots to maximise air movement and ensure the evaporation of surface moisture is essential,' explains Simon Crawford. The following environmental controls can help to prevent the occurrence or spread of tomato blight: (Image credit: Getty Images) Environmental controls for tomato blight