KAU Agri Infotech Portal

Cauliflower (Brassica oleracea var. botrytis)

Damping-off kills seedlings before or soon after they emerge.
Infection before seedling emergence results in poor germination.
If the decay is after seedlings emergence, they fall over or die which is referred to as "damping off."
The destructiveness of the disease depends on the amount of pathogen in the soil and on environmental conditions.
Seedlings that emerge develop lesion on the tender stem contacting the soil surface.
The tissues beneath the lesion become soft rotted and the infected seedlings collapse.
Cool, cloudy weather, high humidity, wet soils, compacted soil, and overcrowding of seedlings usually favour the incidence of damping-off.

Remove and destroy the infected seedlings.
Avoid excessive irrigation and provide adequate drainage.
Treat seeds with Pseudomonas fluorescens (20 g/litre of water/ kg of seed).
Soil application of Trichoderma viride fortified in organic manure and neem cake.

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	Copper hydroxide 77 WP	HiDice, Kocide 101	Blue	1 g/litre of water	10 g	200 g	500 g	-
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	3 gm/litre	30 g	600 g	1500 g	Mix with 20 gram cowdung slurry supernanatnat.
3	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	-