KAU Agri Infotech Portal

Carrot (Daucus carota)

Leaf blight (Cercospora carotae)

Symptoms

The symptoms first appear along the margins of the leaves, often causing the leaves to curl.
Spots inside the leaf edges are small, roughly circular, and tan or gray to brown with a dead center.
As the lesions increase in number and size, the entire leaflet withers and dies.
The fungus attacks younger leaves and plants in preference to older ones.
The pathogen also produces lesions on the petioles and stems.
The lesions may merge and girdle the stems, causing the leaves to die.
Entire leaves and petioles may die on severely infected plants.

Management

Follow crop rotation and field sanitation.
Use disease free seeds.

Chemical Control

Sl.No	Generic Name	Trade Name	Color code	Dosage/litre	Knapsack Sprayer (Capacity 10L)	Recommendation		Remarks
Sl.No	Generic Name	Trade Name	Color code	Dosage/litre	Knapsack Sprayer (Capacity 10L)	Dosage/acre (200 L)	Dosage/hectare (500 L)	Remarks
1	Carbendazim 50 WP	Bavistin, Benfil, Bengard, Benlate, Benmain, Bensaan, Carben, Carziim50, Dhanustin, Dhanustin 50 WP, Fungiguard, Gancarzin50, Glizim, Mintho, Tagstin, Tiara, Zoom	Green	2 g/litre of water/kg of seed	-	-	-	Seed treatment
2	Mancozeb 75 WP	Devidayal M-45, Dhanuka M 45, Dhanuka M-45, Dithane, Dithane M-45, Hilthane, Hindustan M 45, Indofil M 45, Izeb M-45 Manzate, Luzen-45, Macoban, Macoban M-45, Mancosaan, Mancosaan M-45, Maneb Manzane, M-Guard, Savour M 45, Tata M-45 Eurofil-NT, Uthane M-45, Veera, Zinthane	Green	4 g/litre of water/kg of seed	-	-	-	Seed treatment
3	Copper hydroxide 77 WP	HiDice, Kocide 101	Blue	1 g/litre of water	10 g	200 g	500 g	-
4	Copper oxychloride 50 WP	Bensaan, Blitox, Blue copper, Bluetrox, Copter, Cupramar, Cuprina, Dhanucop, Fytolan, Fytox, Fytran, Fytolan, Hilcopper, Killex copper, Maincop Dhanucop, Star cop, Tagcop, Trucop	Blue	2 g/litre of water	20 g	400 g	1000 g	-
5	Mancozeb 75 WP	Devidayal M-45, Dhanuka M 45, Dhanuka M-45, Dithane, Dithane M-45, Hilthane, Hindustan M 45, Indofil M 45, Izeb M-45 Manzate, Luzen-45, Macoban, Macoban M-45, Mancosaan, Mancosaan M-45, Maneb Manzane, M-Guard, Savour M 45, Tata M-45 Eurofil-NT, Uthane M-45, Veera, Zinthane	Green	3 g/litre of water	30 g	600 g	1500 g	-
6	Carbendazim 50 WP	Bavistin, Benfil, Bengard, Benlate, Benmain, Bensaan, Carben, Carziim50, Dhanustin, Dhanustin 50 WP, Fungiguard, Gancarzin50, Glizim, Mintho, Tagstin, Tiara, Zoom	Green	1 g/litre of water	10 g	200 g	500 g	-