Journal of Economic Entomology (1995) 88, 288-293

Robert S. Vernon and David R. Gillespie (1995)
Influence of trap shape, size, and background color on captures of Frankliniella occidentalis (Thysanoptera: Thripidae) in a cucumber greenhouse
Journal of Economic Entomology 88 (2), 288-293
Abstract: Capture of the western flower thrips, Frankliniella occidentalis (Pergande), on yellow or violet traps of four different shapes when placed in front of plywood frames painted violet, blue, green, or yellow as background colors was studied in a cucumber greenhouse in 1988. Among traps with cubic, spherical, rectangular prism, or cylindrical shapes of approximately the same surface areas, only yellow cylindrical traps in front of a violet background were significantly more attractive than the other shapes. Yellow or violet traps placed in front of their identical background colors trapped fewer thrips than if placed in front of certain backgrounds providing greater contrast. Yellow traps placed in front of violet or blue backgrounds caught significantly more thrips than traps with yellow backgrounds, which in turn captured significantly more thrips than traps with green backgrounds. Violet traps with a yellow background caught significantly more thrips compared with violet traps with blue, green, or violet backgrounds. Comparing three-dimensional versus two-dimensional traps, blue cylindrical traps did not catch significantly more thrips per square centimeter of trap area than did flat traps of similar diameter and height. Catch of thrips on flat traps increased linearly with increase in trap area between 74 and 300 cm².
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): David R. Gillespie, Robert S. Vernon

Research topic(s) for pests/diseases/weeds:
pheromones/attractants/traps

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Frankliniella occidentalis	Cucumber (Cucumis sativus)