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Plantwise Factsheets for Farmers

Bean leafhopper

Empoasca kraemeri

Recognize the problem

The leafhopper is a small insect (its size is similar to that of a sesame grain). It is also named empoasca or loritoverde.  The leafhopper lives on the lower surface of bean leaves. Its body is the shape of a large wedge. The colour of the adult and the young varies from green to light green. They walk on one side. The leafhopper sucks sap from the leaves, which become yellow. The edges curl down and plants weaken which greatly reduces bean production.


The leafhopper transmits the golden mosaic virus. It must be detected early for control.

Rain affects the leafhoppers as raindrops can kill them.

Leafhoppers can also live in the undergrowth.


  • Sowing during the rainy season reduces leafhopper attacks
  • Eliminate host undergrowth and stubbles from previous cultivation
  • The opportune detection of leafhopper is important in drought periods, especially before flowering until pods are formed
  • Practise crop rotation
  • Spray with systemic and contact insecticides such as Imidacloprid 70 mL in 20 L water and Abamectin 16 mL in 20 L water, interspersing each application every 15 days
There is no chemical treatment for the virus.

When using a pesticide, always wear protective clothing and follow the instructions on the product label, such as dosage, timing of application, and pre-harvest interval.

The recommendations in this factsheet are relevant to: Bolivia

Authors: Ricardo Rodríguez Araníbar, Raquel Pardo, Erwin Rojas Lino, Johnny Trujillo Guizada

©CAB International. Published under a CC-BY-SA 4.0 licence.

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