Multiple factors influenced the aggregation behavior of adult Eucryptorrhynchus scrobicuatus (Coleoptera: Curculionidae)

• DOI: 10.1093/ee/nvae035
• Publication Date: 2024-05-07T10:44:10Z
• Authors: Xuewen Sun; Wenjuan Guo; Lu Wang; Xin Xin; Xuerong Yang; Junbao Wen
• Keywords: 0303 health sciences; 03 medical and health sciences

Eucryptorrhynchus scrobiculatus (Motschulsky) (Coleoptera: Curculionidae) is a notorious pest of Ailanthus altissima (Mill.) Swingle (Sapindales: Simaroubaceae). E. adults typically aggregate under leaves and in soil crevices at the base A. field. We hypothesize that environmental factors conspecific signals determine their aggregation behavior. To test this, we investigated adult numbers light-exposed shaded areas sample trees conducted experiments both field lab settings. Results revealed (i) greater distribution areas; (ii) significant influence temperature illumination on tendency field; (iii) no gender-based difference degree maximum between light dark; (iv) host plant triggering tendency, negatively affected absence; (v) weakened with gradually changing to ordinary temperature; (vi) mutual attraction chemical males females. Thus, behavior was influenced by including temperature, intensity, plant, signals, but light's role not obvious lab.