English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The Armand pine bark weevil,  Pissodes punctatus  Langor et Zhang (Coleoptera: Curculionidae) is a destructive bark weevil on the Armand pine,  Pinus armandii  Franch (Pinales: Pinaceae), an important timbering tree in southern China. This study examined the phototactic behavior ï éP. punctatus  through observation of behavioral characteristics, response to nine monochromatic lights (ranging from 340 nm to 689 nm with about 40-nm step), and response to five intensities (ranging from 1 lux to 200 lux) of the most attractive light. The results demonstrated that  P. punctatus  was most active in the day, and kept still at night (or in a dark room).  P. punctatus  could be attracted to eight of nine monochromatic lights, the exception being red light (649 nm), which implied broad sensitivity to the spectrum of light.  P. punctatus  was most sensitive to violet (415 nm), ultraviolet (340 nm), and green (504 nm) light, suggesting there might be at least three types of photoreceptors in the compound eyes of this weevil. Furthermore, low intensities elicited an increased phototactic response, and high intensities a decreased phototactic response, under both violet and UV light. Thus,  P. punctatus  were found to be phototactic insects, and the phototactic behavior of  P. punctatus  is both a color and intensity preference. The information provided here provides a basis for the improvement of trapping devices for detection and survey of  P. punctatus , as well as a basis for the development of alternate control strategies for this important pest of Armand pine and other pine trees.

Phototactic Behavior of the Armand Pine Bark Weevil,Pissodes punctatus