China Aster (Callistephus chinensis)
Aphids (Aphis spp)
Symptoms
- Tend to feed in dense colonies.
- Suck plant sap from growing points.
- Heavy feeding causes leaf yellowing and curling and stunted shoots.
- Produce honeydew, a sugary substance that hosts sooty mold growth and attracts ants.
Management
- Wash off plants with a strong stream of water.
- Lure ants away from the scene.
- Place yellow sticky (castor oil coated) traps to attract and catch the insects.
- Spray neem garlic emulsion (20 ml neem oil + 20 gram garlic paste + 5 gram bar soap/litre of water).

