Sugarcane weevil can compromise up to 30 tons per hectare

Expert warns about the impact of the pest on sugarcane cultivation

29.11.2024 | 15:32 (UTC -3)
Wendy de Oliveira

The profitability of sugarcane, even though it plays an essential role in Brazilian agribusiness, has faced constant threats from pests such as the sugarcane weevil (Sphenophorus levis), considered one of the most harmful to sugarcane fields. According to studies, losses caused by this insect pest can reach up to 30 tons per hectare (t/ha), among other losses.

The sugarcane weevil's lifestyle helps explain this potential damage to sugarcane fields. Its larvae develop inside the plant, feeding on the stalks and compromising the absorption of nutrients and water. This process results in the death of roots and the drying of leaves from the outside in, signs that farmers should watch carefully.

“The losses caused by this pest are significant and include reduced productivity and longevity of sugarcane fields, which are crucial aspects for the economic sustainability of production,” he explains. Matthew Bis (pictured above), Technical Market Coordinator at Nitro, a Brazilian multinational producer of special inputs for agribusiness.

With the need to adopt more sustainable and efficient practices to combat the sugarcane weevil, experts point out that the use of bioinsecticides is a promising alternative, such as biologicals based on beauveria bassiana. Developed from fungi, it offers targeted control that does not negatively impact the pest's natural enemies. In this way, it helps maintain the ecological balance of sugarcane cultivation, favoring more sustainable and long-term production, without compromising the profitability of sugarcane fields.

Unlike traditional chemical methods, which can lead to pest resistance, biological solutions do not produce this side effect, preserving the effectiveness of management for longer. “Farmers are increasingly seeking solutions that combine productivity and sustainability, ensuring that pest control does not compromise the surrounding ecosystem. And the use of biologicals has ensured efficient protection of this crop,” adds Bis.

profitable cultivation

Sugarcane is one of the main products of the national agribusiness. According to data from the National Supply Company (Conab), Brazilian production in the 2023/2024 harvest is expected to reach 713,2 million tons, a record for this crop. Foreign trade also reinforces Brazil's leading role in this crop. Currently, Brazil is the world's largest producer and exporter of sugar, as well as the second largest producer of ethanol from sugarcane.

In this context in which sugarcane is strategic for Brazil's economic and energy development, the adoption of sustainable practices in pest control, reconciling productivity and efficiency, is essential to maintain the sector's competitiveness and resilience in the face of environmental and market challenges.

“As one of the global leaders in this production and export sector, the priority of national producers must be to maintain competitiveness through assertive and strategic investments in sustainable practices and tools. And efficient management using biologicals is essential to control pests, ensuring the production and longevity of sugarcane fields without compromising environmental balance,” he concludes.

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