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Cladosporium fulvum is an Ascomycete called Passalora fulva, a non-obligate pathogen that causes the disease on tomatoes known as the tomato leaf mold. [1] P. fulva only attacks tomato plants, especially the foliage, and it is a common disease in greenhouses, but can also occur in the field. [2] The pathogen is likely to grow in humid and cool ...
Plants that are most susceptible to frost damage include tender annuals such as tomatoes, peppers, and basil. Delicate perennials, young seedlings, and tropical plants like hibiscus and citrus ...
Water-logging can occur on poorly drained soils, particularly following heavy rains. Plants can become yellow and stunted, and will tend to be more prone to drought and diseases. Improving drainage will help to alleviate this problem. Hail can cause damage to soft skinned fruits, and may also allow brown rot or other fungi to
Blossom end rot in tomatoes is often caused by a low concentration of calcium in the fruit. It can also occur in peppers and eggplant.
Phytophthora infestans is an oomycete or water mold, a fungus-like microorganism that causes the serious potato and tomato disease known as late blight or potato blight. Early blight, caused by Alternaria solani, is also often called "potato blight".
In 2013, the Hindustan Times reported that in India, buckeye rot of tomato has led to damage in 30–40 percent of tomato crops. [13] In 2012, the price of a tomato in India ranged from 0.20-0.33 dollars per kg; however, in 2013 when the disease hit, the price rose to 0.33-0.65 dollars per kg. [4]
Deficient plants may be more prone to frost damage and disease, and their symptoms can often be confused with wind scorch or drought. The deficiency is most common in several important fruit and vegetable crops; notably potatoes , brassicas , tomatoes , apples , currants , gooseberries , and raspberries .
Plant disease resistance is crucial to the reliable production of food, and it provides significant reductions in agricultural use of land, water, fuel, and other inputs. Plants in both natural and cultivated populations carry inherent disease resistance, but this has not always protected them.