Effective control of the black bean aphid. Compatibility of the nettle extract with beneficial insects, allowed the parasitoid Aphidius colemani to move into the crop providing an additional aphid control.
Technical result: effective bean aphid control respecting beneficial insects resulting in a synergyistic control.
Economic result: biological solution at the same efficacy and longer term than chemical treatment
Sustainability (ecological, social and economical) Gains:
Reduction of the reliance on chemical pesticides
Compatibility with beneficial insects enables synergistic bean control
Increased biodiversity enabling long term pest control and resilient cropping systems
Enables worker and consumer health and safety
Promotes more sustainable residue free bean production, better accepted by the public
Through its growth stimulating effect, the nettle extract supports specialized smallholder farmers’ livelihood and value generation
Improvement of financial viability by reduction of man and tractor hours as the nettle extract is applied through fertigation
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