http://suffolkmoths.org.uk/blog/index.php/2018/10/08/portable-led-light-the-future-of-moth-hunting-in-remote-areas/ Topical information from the Suffolk Moth Group Tue, 25 Feb 2020 18:38:33 +0000 hourly 1 https://wordpress.org/?v=3.6.1 http://suffolkmoths.org.uk/blog/index.php/2018/10/08/portable-led-light-the-future-of-moth-hunting-in-remote-areas/#comment-2661 Raymond Watson Tue, 09 Oct 2018 15:47:26 +0000 http://suffolkmoths.org.uk/blog/?p=7750#comment-2661 Link to research paper https://doi.org/10.3897/nl.40.11887

]]> http://suffolkmoths.org.uk/blog/index.php/2018/10/08/portable-led-light-the-future-of-moth-hunting-in-remote-areas/#comment-2660 Raymond Watson Tue, 09 Oct 2018 09:41:38 +0000 http://suffolkmoths.org.uk/blog/?p=7750#comment-2660 There was a paper on the trials of this during its development that was shown on a moths facebook page by Les Evans-Hill. I can’t remember which Facebook page, sorry. Whilst the image shows lots of moths, the paper shows results that are a far cry from the numbers caught by a 125W MV light. This is a start though. It seems it is basically all about the wavelength but not as simple as finding a particular wavelength. Moths of different species see different wavelengths and have at least 3 different receptors detecting different wavelengths. LEDs emit a narrow wavelength band of light. Thus this developed light brings several colours together. This is a start but there is a long way to go. I have been experimenting. With a single colour ‘cool white’ LED it attracted good numbers of Flounced Rustic and Pyrausta despicata plus flies and bugs but little else. I then tried something described as ‘full spectrum’ That gave a light in which the human eye could detect 4 colours. It was totally ineffective despite being very bright. There is a lot of research needed!

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