Is leaf spot a bacterial diseases?
Is leaf spot a bacterial diseases?
Bacterial leaf spot can occur on both leaf and head lettuce varieties. As with most bacterial diseases, the pathogen, Xanthomonas campestris pv. vitians, is highly dependent on wet, cool conditions for infection and disease development. Symptoms develop only if rain or sprinkler irrigation is present.
Is leaf spot fungal or bacterial?
A leaf spot is a limited, discoloured, diseased area of a leaf that is caused by fungal, bacterial or viral plant diseases, or by injuries from nematodes, insects, environmental factors, toxicity or herbicides….Fungi.
| Ascomycetes | Cause and Host |
|---|---|
| Pyrenophora | Leaf spot on many cereals and grasses. |
What is Cercospora Personata?
Hint:Cercospora personata is a genus that belongs to ascomycetes fungi. Most of these species lack sexual stages. The species of this genus induces leaf spots and causes plant diseases.
What fungi causes leaf spots?
Leaf spot diseases caused by fungi and bacteria are among the most commonly encountered problems for ornamental growers. Many different crops are affected by species of the fungal genera Alternaria, Cercospora, Colletotrichum (anthracnose), and Myrothecium.
Which of the following disease is caused by Alternaria solani?
Early blight of potato is caused by the fungal pathogen Alternaria solani. The disease affects leaves, stems and tubers and can reduce yield, tuber size, storability of tubers, quality of fresh-market and processing tubers and marketability of the crop.
What is bacterial spot?
Bacterial spot is caused by four species of Xanthomonas and occurs worldwide wherever tomatoes are grown. Bacterial spot causes leaf and fruit spots, which leads to defoliation, sun-scalded fruit, and yield loss.
Which plant disease is caused by bacteria?
Control
| Some bacterial diseases of plants | ||
|---|---|---|
| disease | causative agent | hosts |
| Granville wilt | Pseudomonas solanacearum | tobacco, tomato, potato, eggplant, pepper, and other plants |
| fire blight | Erwinia amylovora | apple and pear |
| wildfire of tobacco | Pseudomonas syringae | tobacco |
What is colletotrichum Falcatum?
Colletotrichum falcatum, a concealed fungal ascomycete causes red rot, which is a serious disease in sugarcane. It infects economically important stalk tissues, considered as store house of sugar in sugarcane.
What is tikka disease?
The groundnut leaf spots (early leaf spot and late leaf spot) commonly called as. “Tikka” disease cause nearly complete defoliation and yield loss up to 50 per cent or more depending upon disease severity. The leaf spot disease epidemics are affected by weather parameters such as hot and wet conditions.