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Tomato leaf mold is a plant disease originated from the South and Central America. [1] In 1883, Cooke first discovered the tomato leaf mold in North Carolina. [ 2 ] This disease is not common on the fruit, but if the control is not run, the foliage can be greatly damaged and result in significant yield losses.
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The leaves tend to be fern-like in appearance with pointed tips and younger leaves may be twisted. The fruit may be distorted, yellow blotches and necrotic spots may occur on both ripe and green fruit and there may be internal browning of the fruit wall. In young plants, the infection reduces the set of fruit and may cause distortions and ...
The plant pathogen causes a yellow leaf disorder in solanaceous crops including tomatoes. [1] ToCV is transmissible by whiteflies, phloem-limited and causes symptoms of interveinal chlorosis followed by necrosis in the tomato plants leaves resulting in a reduced fruit yield. [1] ToCV has a wide range of hosts such as pepper and potato. [4]
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.
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]
This causes insufficient growth of plant leaves, lateral shoots and ultimately plant death. [11] Spider mites and scales are pests that cause punctures to the top and underside of tomato leaves in order to feed on the sap. This can cause yellowing of leaves, wilted leaves, premature fruit production and stunted plant growth.
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.