There is some info on this, at least for various colors: It may be insects are not attracted to or can’t ‘see’ the red:
1. Journal of Economic Entomology Volume 91, Issue 1, 1 February 1998 DOI http://dx.doi.org/10.1093/jee/91.1.256 Evaluation of Various Color Hydromulches and Weed Fabric on Broccoli Insect Populations Restricted access Oscar E. Liburd, Richard A. Casagrande, Steven R. Alm DOI: http://dx.doi.org/10.1093/jee/91.1.256 256-262 First published online: 1 February 1998 * Article<http://jee.oxfordjournals.org/content/91/1/256> * Information & metrics<http://jee.oxfordjournals.org/content/91/1/256.article-info> * Explore<http://jee.oxfordjournals.org/content/91/1/256.explore> * PDF<http://jee.oxfordjournals.org/content/91/1/256.full.pdf> Abstract We evaluated the potential for variously colored hydromulches (sprayed-on wood fibers plus adhesive) and weed fabric to suppress populations of the cabbage maggot, Delia radicum (L.), cabbage aphid, Brevicoryne brassicae (L.), and other insects in broccoli, Brassica oleracea L. Weed control also was evaluated. Commercial hydro mulches were evaluated in their standard formulations or modified by adding corn starch, plaster of paris, lamp black, and latex blue or yellow paint. D. radicum populations were significantly lower in plots treated with hydro mulch and blue paint than in un mulched control plots. This treatment was equal to or better than diazinon in suppressing D.radicum. B. brassicae populations were significantly higher in plots treated with hydromulch and yellow paint than in un mulched control plots. Weed fabric significantly reduced weed populations, but the levels of flea beetle Phyllotreta cruciferae (Goeze) in those plots were 6 times higher than in control plots. Early-season populations of D. radicllm and B. brassicae could be suppressed simultaneously if the appropriate combinations of hydromulch and color were used. 2. Pak. Entomol. Vol. 27, No.1, 2005: 49 IIINSECT ORIENTATION TO VARIOUS COLOR LIGHTS IN THE AGRI- CCULTURAL BIOMES OF FAISALABAD M. Ashfaq, Rashid A. Khan*, M. Ahsan Khan, Fahad Rasheed* and Shahid Hafeez* Department of Agri Entomology, University of Agriculture, Faisalabad. *Department of Forestry, Range Management and Wildlife, University of Agricutlure, Faisalabad. ABSTRACT This experiment was conducted in the area of Punjab Agriculture Research Station (PARS) and Chak No.33 JB Faisalabad to evaluate the response insects to varying wavelengths of light. During experiment, lights of six different colors (blue, green, yellow, red, black and white) were tested. All lights were arranged in a line on agriculture land, close to Faisalabad Airport. Tree rows/blocks, forest nursery, fruit garden, wheat, maize and fodder crops were the main vegetative covers in the vicinity. Each selected color light was properly projected on 1m 2 vertical screen (made of white cotton fabric) placed one meter high above the ground. All lights were kept on simultaneously for half an hour and the insects attracted on both sides of the screens were collected in tubs containing soapy water. At the end of experiment, the collection was shifted to properly labeled storage bottles for counting and identification into respective orders. The highest number of insects was observed in container placed under black light (ultraviolet light), while the lowest in that of red light. Similarly, the common insect orders frequented among all color lights were Diptera, Coleoptera and Lepidoptera respectively. The experimental results indicated that insects are attracted in more number on lights with short wavelengths and high frequencies and vice a versa. 3. Journal of Economic Botany Volume 62, Issue 2, 1 April 1969 DOI http://dx.doi.org/10.1093/jee/62.2.419 Response of Overwintered Boll Weevils to Reflected Light, Odor, and Electromagnetic Radiation Restricted access H. M. Taft, A. R. Hopkins, H. R. Agee DOI: http://dx.doi.org/10.1093/jee/62.2.419 419-424 First published online: 1 April 1969 * Article<http://jee.oxfordjournals.org/content/62/2/419> * Information & metrics<http://jee.oxfordjournals.org/content/62/2/419.article-info> * Explore<http://jee.oxfordjournals.org/content/62/2/419.explore> * PDF<http://jee.oxfordjournals.org/content/62/2/419.full.pdf> Abstract Overwintered adult Anthonomus gralldis Boheman were studied to determine how they locate cotton when they leave hibernation sites. Attractant stimuli that might be produced by cotton that were examined were light, odor, or electrostatic field. The numbers of weevils responding to the stimuli indicated that weevils distinguish colors and respond in significantly greater numbers to wave-lengths of light in the blue-green region (500-525 nanometers) than in others. They were not attracted by light in the red region of the spectrum (600-650 nanometers) or by the odor of cotton or cocklebur plants. There was an indication in 1 experiment that the weevils could detect differences between grounded and ungrounded plants. Teri Lynn -- Teri Lynn Herbert, MS, MLIS Associate Professor ORCID ID: orcid.org/0000-0002-6120-0423 Medical University of South Carolina Library ****** Unsubscribe by sending a message to [email protected] Archives through August 2016 at http://cool.conservation-us.org/byform/mailing-lists/cdl/ Archives from September 2016 onward at https://www.mail-archive.com/[email protected]/
