Root sharpshooter, an increasingly dangerous insect for sugarcane fields

The presence of sucking insects, such as the leafhopper, has increased in sugarcane fields, demanding more attention from Brazilian farmers and causing significant losses. Proof of this is that, in 2022, the applications of pesticides against this pest increased, according to the National Union of the Plant Defense Products Industry (Sindiveg).

A Mahanarva fimbriolata, the scientific name of this insect measuring just 12 millimeters, feeds on the sap present in the roots of sugar cane, which impairs the absorption of water and nutrients essential for the health of the plant and – consequently – the good development of the crop, historically one of the most important in agribusiness in Brazil.

Leafhopper feeding can also cause rot and death of sugarcane roots. Estimates indicate that the pest has the potential to lose up to 80% of the plantation if it is not treated properly.

Based on data from the National Supply Company (Conab), which estimated national sugarcane production in the 585/2021 harvest at more than 2022 million tons, the financial impact of the pest could reach R$48,6 billion – remembering that the Basic Value of Sugarcane Production estimated for 2022 is R$95 billion.

These numbers show the urgency of effectively combating Mahanarva fimbriolata. Acetamiprid and bifenthrin are molecules developed and with efficacy already proven by science that have contributed to decimating the leafhopper. Together, they represent the best insect control strategy, with prolonged action and protection of sugarcane fields.

Acetamiprid, a neonicotinoid, is completing 50 years of excellent results in the field. This active ingredient acts directly on the leafhopper's nervous system, just like bifenthrin. The association of these insecticidal functions enhances the control of the pest, causing its death and minimizing the negative effects on sugarcane.

This union of active ingredients stops damage immediately. With this management option, it is possible to expand sugarcane production safely and sustainably, benefiting food production, such as sugar, and the alcohol, energy and biomass markets, in addition to the Brazilian economy as a whole. It is science at the service of productivity in the field.

By Homero Moreschi, agronomist and Trade Marketing for Sugarcane and Pasture at UPL