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Alternaria solani is a fungal pathogen that produces a disease in tomato and potato plants called early blight. The pathogen produces distinctive "bullseye" patterned leaf spots and can also cause stem lesions and fruit rot on tomato and tuber blight on potato. Despite the name "early", foliar symptoms usually occur on older leaves. [3]
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]
Stemphylium solani is a plant pathogen fungus in the phylum Ascomycota. It is the causal pathogen for grey leaf spot in tomatoes and leaf blight in alliums and cotton, though a wide range of additional species can serve as hosts. Symptoms include white spots on leaves and stems that progress to sunken red or purple lesions and finally leaf ...
The more consistently you can keep these soil factors, the better your plants will be. Remember, it is also best to somewhat mimic rainfall patterns to wean plants off excessive moisture.
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".
Another important management method is to eliminate volunteer plants (plants that grow without being specifically planted or managed by farmers) as wild pepper and tomato plants can harbor the disease in warmer climates. [5] Currently, the most effective treatment for bacterial spot of pepper and tomato is a combination of chemical applications.
A. a. f. sp. lycopersici (AAL) infects only certain cultivars of tomato plants and is often referred to as Alternaria stem canker of tomato. [3] AAL ' s main symptom is cankers in the stem. It resides in seeds and seedlings, and is often spread by spores as they become airborne and land on plants. It can also spread throughout other plants. [4]
3. Remove new flowers that develop at the top of the plant when older fruits near the bottom begin to grow. This will force the plant’s energy into producing fewer but larger tomatoes. 4. Be ...