High innate preference of black substrate in the chive gnat, Bradysia odoriphaga (Diptera: Sciaridae).

ABSTRACT: The chive gnat, Bradysia odoriphaga, is a notorious pest of Allium species in China. Colour trapping is an established method for monitoring and control of Bradysia species. In order to clarify the effect of colour preference of B. odoriphaga for the perched substrate, multiple-choice tests were used to assess the response of the chive gnat to different colour hues and brightness levels under different intensities of white illumination and two spectrally different illuminations. Given the choice among four colours differing in hue under different intensities of white illumination and two spectrally different illuminations, chive gnat adults significant preferred the black substrate, a lesser preference to brown and green substrates, and the least preference to orange substrate irrespective

SUBMITTER: An L 

PROVIDER: S-EPMC6508717 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature