Ecological zoning of Euschistus heros in Brazil based on the net reproductive rate at different temperatures and relative-humidity levels

Author(s)

Rodrigues, Lucas Maniero ; Garcia, Adriano Gomes ; Parra, Jose Roberto Postali

• Document type: Journal article
• Source: Journal of Economic Entomology; v. 116, n. 4, p. 7-pg., 2023-06-17.

Abstract

The Neotropical brown stink bug, Euschistus heros (Fabricius, 1798) (Hemiptera: Pentatomidae), is one of the major insect pests in soybean crops, causing severe damage; however, some aspects of its biology that are essential for management remain unknown. To aid in the management of E. heros, the present study investigated the fertility life table of this species at 7 temperatures (18, 20, 22, 25, 28, 30, and 32 +/- 1 degrees C) and 4 relative-humidity levels (30, 50, 70, and 90 +/- 10%). Based on the net reproductive rate, R-0, we developed an ecological zoning for this pest in Brazil, to identify climatically favorable areas for population growth. Our results indicated that the most favorable range is between 25 and 28 degrees C and above 70% RH. The ecological zoning indicated that farmers should be more concerned in the northern and Midwest regions, which include the state of Mato Grosso, the largest soybean and corn producer in Brazil. These results provide valuable information, indicating the hotspots most likely to be attacked by the Neotropical brown stink bug. (AU)

• FAPESP's process: 19/26071-8 - Computational modeling of tritrophic interactions in biological pest control
• Grantee: Adriano Gomes Garcia
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 18/02317-5 - Center for Excellence in Biological Control
• Grantee: José Roberto Postali Parra
• Support Opportunities: Research Grants - Research Centers in Engineering Program
• FAPESP's process: 14/50871-0 - INCT 2014: National Institute of Science and Technology of Semiochemicals in Agriculture
• Grantee: José Roberto Postali Parra
• Support Opportunities: Research Projects - Thematic Grants