Description:

• Onion aphids are dark reddish-brown in colour with antennae about the same length as their bodies.
• They are 1.5–2.5 mm long.

Damage Symptoms:

• Aphids suck the sap from plants.
• Leaves turn yellow.
• Yellow to brownish-red streaks appear on leaves.

Preventive Measures:

• Inspect crops regularly and remove leaves heavily infested with aphids.
• Place sticky traps in the field.

Control Measures:

• Apply Imidacloprid