Ollas and mosquitoes

Q. We are looking seriously at your Ollas for fall (we have now taken up a 4 ft x 20 strip of the front lawn for veg. (grin)) but I’m worried about mosquito issues. Do you cap ’em?

A. Glad to see your interest in this ancient and efficient method of irrigation. The hole/opening isn’t that big (1″ or two) so we use rocks to cap ’em. Looks pretty too!

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