Synergistic influence of the capture effect of western flower thrips (Frankliniella occidentalis) induced by proportional yellow-green light in the greenhouse

To clarify the influence of yellow, green, and proportional yellow-green light on capture effect, western flower thrips, Frankliniella occidentalis (Pergande), were captured using different self-made sources in a greenhouse. The bio-activity effect thrips was regulated by analyzed to determine reasons for changes their light. results showed that thrips’ induced with same brightness positively correlated night temperature. When average temperature 27°C (19:00-21:30), optimal, indicating coupling can regulate thrips. Green intensified yellow inhibited visual trend sensitivity differing proportions. trapped green-yellow ratio 4:1 optimal (1088.00 individuals time), while worst (456.67 individuals/night), thus, green higher than Such differences originated from photoelectric thermal conversion spectral optical properties, photo-thermal main reason produced light-trapped behavior. Night enhanced responses white adhesive board during daytime, intensity strongest (1563.00 daytime), weakest (75.33 day time). Additionally, regulatory proportions However, corresponding best (2019.67 night). function affected decrease temperature, but photo-electro-thermal effects daytime color sensitivity. provide theoretical basis development pest induction equipment. Keywords: light, synergistic DOI: 10.25165/j.ijabe.20231601.7562 Citation: Liu Q H, Wang X F, Zhao M T. Synergistic (Frankliniella occidentalis) Int J Agric & Biol Eng, 2023; 16(1): 88–94.