TUBER VEGETABLES :: MINOR PESTS :: LEAFHOPPERS
Leaf hopper: Empoasca kerri (Cicadellidae: Hemiptera)
Damage symptoms
Both adults and nymphs suck sap from young leaves, mostly from the lower surface. The first symptom of attack is a whitening of the veins. Chlorotic (yellow) patches then appear, especially at the tips of leaflets, probably caused by a reaction between the jassids salivary secretion and plant sap. Under severe infestation, the leaf tips become necrotic in a typical V shape , giving the crop a scorched appearance known as 'hopper burn'
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LH |
Damage Symptom |
Bionomics
Elongate, active wedge shaped green insects found on the under surface of leaves.
Management
Spraying the infested crop with endosulfan 35 EC 750 ml or imidacloprid 17.8 SL 100 -125 ml in 700- 1000 L of water per ha.
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