Measures to Control Cercospora Leaf Spot in Chilli

9 February 2024

Cercospora leaf spot is a common fungal disease in chilli crops that can significantly impact yield and quality. The disease affects leaves, stems, and sometimes fruits, reducing the plant's ability to photosynthesize.

Cercospora Leaf Spot in Chilli Plants

Type of Infestation: Fungal Disease
Common Name: Cercospora Leaf Spot
Causal Organism: Cercospora capsici
Affected Parts Of the plant: leaf

Environmental favorable factors for pests/Diseases:

Warm, humid weather
Poor air circulation
Excessive irrigation
Nitrogen deficiency

Symptoms of Pest/Disease:

Circular spots with brown margins and grey centers appear on leaves.
The spots enlarge and coalesce with others, eventually covering the entire leaf.
The central portion of the spot may drop out, leaving a "shot-hole" appearance.
Leaves may turn yellow and fall prematurely.
In severe cases, the fungus can also infect stems and fruits.

Measures to control Pests/Diseases:

Products	Technical Names	Dosages
propi	Propineb 70% WP	600-800gm/arce
samartha	Carbendazim 12 % + Mancozeb 63 % WP	300-400gm/acre
Dr Blight	Metalaxyl-M 3.3% + Chlorothalonil 33.1% SC	300-400 ml/acre
KZEB	Mancozeb 75% WP	500gm/Acre

Frequently Asked Questions

Q. What is Cercospora leaf spot in chilli?

A. It is a fungal disease that affects the leaves of chilli plants and negatively impacts yield.

Q. What are the symptoms of Cercospora Leaf Spot?

A. Circular spots with brown edges and centers appear on leaves, and leaves fall prematurely.

Q. Which products are effective for controlling Cercospora Leaf Spot?

A. Products like propi, samartha, Dr Blight, and KZEB are effective

Q. How often should treatment be applied for Cercospora Leaf Spot?

A. It depends on the weather and severity of the infection, but generally, 2-3 applications are needed.

Q. What are the ideal environmental conditions for Cercospora Leaf Spot?

A. Warm, humid weather, poor air circulation, and excessive irrigation are ideal conditions for the spread of this disease.

For more information about pests and diseases, read our other blogs.