corn seedling diseases

Several common soilborne fungi such as Fusarium, Penicillium, Pythium, and Rhizoctonia are often isolated from infected seedlings and roots. Other fungi such as Aspergillus, Nigrospora, and Trichoderma may also cause seedling diseases in corn. Fusarium.

1. What is seedling blight?
2. What stage is corn susceptible to disease?
3. What is rice seedling blight?
4. Can a plant survive root rot?
5. What is sheath blight disease?
6. What is a fungal disease that attacks corn?
7. Why are my corn stalks turning brown?
8. How do you control maize disease?

What is seedling blight?

Seedling blight is a fungal infection that causes the seed or seedling to rot and die. It can be characterized by patches in the field that fail to germinate. If the seedlings do manage to germinate, they may not emerge, or they may emerge and then become brown, pinched, and die.

What stage is corn susceptible to disease?

Corn is vulnerable to the following infections by plant pathogens throughout the growing season under favorable environmental conditions: seed rots and seedling blights soon after planting, foliar diseases in mid-season, and stalk and ear rots toward the end of the growing season.

What is rice seedling blight?

Seedling blight, or damping off, is a disease complex caused by several seed-borne and soil-borne fungi, including species of Cochiobolus, Curvularia, Fusarium, Rhizoctonia and Sclerotium. ... Cold, wet weather is most favorable to disease development. Seedling blight causes stands of rice to be spotty, irregular and thin.

Can a plant survive root rot?

Prolonged root rot may lead to death of the plant. In extreme cases, plants affected by root rot may die within 10 days. Root rot is usually lethal although it is treatable. An affected plant will not normally survive, but may potentially be propagated.

What is sheath blight disease?

Sheath blight is a fungal disease caused by Rhizoctonia solani. Infected leaves senesce or dry out and die more rapidly, young tillers can also be destroyed. As a result, the leaf area of the canopy can significantly be reduced by the disease.

What is a fungal disease that attacks corn?

Corn smut, plant disease caused by the fungus Ustilago maydis, which attacks corn (maize) and teosinte plants.

Why are my corn stalks turning brown?

Rotting corn stalks can be caused by fungal or bacterial pathogens. The most common cause of sweet corn with rotting stalks is a fungal disease known as anthracnose stalk rot. This fungal disease is caused by the fungus Colletotrichum graminicola. Its most common symptom is shiny black lesions on the stalk.

How do you control maize disease?

1. Residue management through sanitation, tillage and crop rotation.
2. Ploughing down of crop debris may reduce early infection.
3. Spray of fungicide Dithane M-45 applications @ 2.5-4 g/L of water at first appearance of pustules. If disease is severe three sprays at 15 days interval are recommended.