The business case for precision drone spraying: A smallholder sugarcane cooperative in KwaZulu-Natal

A case study of an 80-hectare sugarcane cooperative in KwaZulu-Natal demonstrates that switching from tractor-mounted boom sprayers to precision drone spraying reduced total spraying costs by approximately 25% and chemical usage by 20–30%. The transition eliminated operational downtime after rainfall and reduced labour requirements from 10 man-days per hectare to 2 man-days. These efficiencies, combined with yield increases of 6–12.5 tonnes per hectare and a 2 percentage point increase in estimated recoverable crystal (ERC), resulted in a net financial benefit of approximately R8,400 per hectare per year, totaling R672,000 for the cooperative. The document notes that direct drone ownership, costing between R250,000 and R400,000, has an estimated payback period of 1–1.5 seasons, while shared-service models lower the entry barrier for smallholders.

• The adoption of drone spraying by an 80-hectare cooperative in KwaZulu-Natal led to a reduction in total spraying costs of approximately 25%, primarily due to lower labour and application expenses, and a decrease in chemical usage of 20–30%.
• Drone technology significantly improved operational efficiency by eliminating downtime caused by rainfall and reducing the labour required for spraying from 10 man-days per hectare to 2 man-days per hectare.
• The cooperative experienced productivity gains, including an increase in average cane yield of 6–12.5 tonnes per hectare and a 2 percentage point increase in estimated recoverable crystal (ERC).
• The transition to drone spraying generated a net annual financial benefit of approximately R8,400 per hectare, which equates to R672,000 per year for the 80-hectare cooperative.
• Direct ownership of drones, with costs ranging from R250,000 to R400,000, is estimated to have a payback period of 1 to 1.5 seasons, although shared-service models are highlighted as a way to reduce upfront capital barriers for smallholders.

APA

GreenCape (n.d.). The business case for precision drone spraying: A smallholder sugarcane cooperative in KwaZulu-Natal. https://greencape.co.za/wp-content/uploads/2025/12/KZN-Agtech-Case-Study-Final.pdf

Chicago

GreenCape. The business case for precision drone spraying: A smallholder sugarcane cooperative in KwaZulu-Natal. n.d. https://greencape.co.za/wp-content/uploads/2025/12/KZN-Agtech-Case-Study-Final.pdf.

Wikipedia

{{cite report |author=GreenCape |title=The business case for precision drone spraying: A smallholder sugarcane cooperative in KwaZulu-Natal |url=https://greencape.co.za/wp-content/uploads/2025/12/KZN-Agtech-Case-Study-Final.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{greencapendbusiness, author = {{GreenCape}}, title = {{The business case for precision drone spraying: A smallholder sugarcane cooperative in KwaZulu-Natal}}, institution = {GreenCape}, url = {https://greencape.co.za/wp-content/uploads/2025/12/KZN-Agtech-Case-Study-Final.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }