New measure of success.....or failure (2 Viewers)

Having had a particularly poor night recently with 2 x 15w actinics out in ancient coppice and woodland, when unfortunately it was a bit breezy and a bright moon, I caught very few moths. How should one measure the level of success against effort, and in an idl e moment considered dividing number od moths by watts available. That night was .5 moths per watt, which isn't too clever. I think my best has been 7.5 m.p.w., but I know of much better figures elsewhere. Common chaps - rise to the challenge.

Last night I found two large yellow underwings laying eggs in our garden (on rush and verbena). As I didn't have the trap on, that equates to an infinite no. of moths per watt (unless you count the wattage of the moon )
Ken
PS The LYU eggs were laid in an incredibly precise formation, just as if you laid out snooker balls in the triangle.

Surreybirder said:

snooker balls in the triangle.

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You must have your lawn level and grass cut short

Angus T said:

You must have your lawn level and grass cut short

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If only!