Three types of red nets. (IMAGE)

University of Tokyo

Three types of red nets.

Caption

The researchers tested the spectral reflectance, the wavelengths of light reflected, off the different nets. At wavelengths longer than 600 nanometers (billionths of a meter), we see the colors orange to red. As spectral reflectance was higher from the red nets, the team contemplated whether the deterring effect on onion thrips might be due to these longer wavelengths stimulating certain receptors in the insects’ eyes. 

Credit

2024 Tokumaru et al./Scientific Reports

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