KAU Agri Infotech Portal

Cabbage (Brassica oleracea var. capitata)

Yellowish green nymphs and adults suck cell sap and devitalize plants.
Affected parts become discolored and malformed.
Cupping and crinkling of leaves can be seen.
The aphids are mostly observed on the lower surface of the leaves.
When seedlings are infested they lose vigor, gets distorted and become unfit for transplanting.
Excrete honeydew which attracts sooty mould and interferes with photosynthesis.
Presence of white cast skin at the base of the plant
High humidity favours rapid multiplication of this pest.

Grow mustard as trap crop.
To control wash off plants with a strong stream of water and reduce pest numbers.
Hang yellow sticky (castor oil coated) traps@ 20 no/ha.
Cut and destroy the infested leaves/ shoots mechanically as soon as the aphid attack appears.
Spray of fine pulverized mica powder @ 0.2 per cent to repel the alates
Spray Lecanicillium lecanii (synonym Verticillium lecanii) (20 g/litre of water) or Beauveria bassiana (20 g/litre of water).
Spray neem garlic emulsion (20 ml neem oil + 20 gram garlic paste + 5 gram bar soap/litre of water).
Predators like coccinellids, syrphids and chrysopids; and parasitoids like Aphidius spp also reduce the population.

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	Dimethoate 30 EC	Nugor, Rogor, Tagor, Tara 909, Label colour	Yellow	2 ml/litre of water	20 ml	400 ml	1000 ml	-
2	Cyantraniliprole 10.26% OD	Benevia	Green	2 ml/litre of water	20 ml	400 ml	1000 ml	-
3	Malathion 50 EC	Agromala, Agromala Malathion, Celthion, Hilmala, Kthion, Malaacid, Simala Milthion, Tagthion Malamar, Thisol	Blue	2 ml/litre of water	20 ml	400 ml	1000 ml	-