Search results
Results from the WOW.Com Content Network
Septoria lycopersici infects the tomato leaves via the stomata and also by direct penetration of epidermal cells. [3] Symptoms generally include circular or angular lesions most commonly found on the older, lower leaves of the plant. [1] The lesions are generally 2–5 mm in diameter and have a greyish center with brown margins.
The tomato leaf mold fungus is a specific pathogen that only infects tomatoes, mainly in greenhouses. The symptoms of this disease commonly occurs on foliage, and it develops on both sides of the leaf on the adaxial and abaxial surface. The older leaves are infected first and then the disease moves up towards young leaves. [2]
Fusarium oxysporum f.sp. lycopersici is a fungal plant pathogen. It is a big pathogen to the tomato plant. It has a violet to white color on most media but does not produce a pigment on King's B medium. It has been spread to tomato seeds by the hands of contaminated workers. The seeds of infected plants may be infected as well.
Here's how to keep your plants healthy and productive. Plus, what to do about leaf spots, wilts, and other problems.
Fusarium wilt starts out looking like vein clearing on the younger leaves and drooping of the older lower leaves, followed by stunting, yellowing of the lower leaves, defoliation, marginal necrosis and plant death. On older plants, symptoms are more distinct between the blossoming and fruit maturation stages. [4]
For premium support please call: 800-290-4726 more ways to reach us
[1] [2] Wilt, stunting and lack of vigor can be observed as the primary symptoms, and infected leaves can possibly show interveinal chlorosis that leads to premature defoliation. [ 3 ] [ 4 ] The distinctive characteristic of P. lycopersici is that it causes brown lesions on the surface of medium roots which are known as a brown root rot. [ 4 ]
For premium support please call: 800-290-4726 more ways to reach us more ways to reach us