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2017 Mosquito Reports

Discussion related to Sierra Nevada current and forecast conditions, as well as general precautions and safety information. Trail conditions, fire/smoke reports, mosquito reports, weather and snow conditions, stream crossing information, and more.
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2017 Mosquito Reports

Postby ERIC » Sat Feb 11, 2017 11:37 am

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New year, new log for what will likely be a very active mosquito year in the Sierra...

From maverick's original post a few years ago:

maverick wrote:
1 - No mosquitoes or if there are some, but not biting yet (Blue)
2 - Very light during the day, moderate at dawn and dusk (Green)
3 - Moderate during the day, heavy at dawn and dusk (Yellow)
4 - Heavy during the day, heavy at dawn and dusk (Orange)
5 - Unbearable all day, no breaks, cannot eat outside of tent. If you stop, hundreds
will descend on you; when looking thru a camera viewfinder, you see more skeeters than
lake. If you slapped your arm, you'd smear blood from all the dead gorged bodies (Red)

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Re: 2017 Mosquito Reports

Postby SSSdave » Fri Apr 28, 2017 1:06 pm

Got bit for first time this year Tuesday April 18 on back of hand along Merced River west of the the one way traffic avalanche section while standing beside highway in a shaded area photographing some Pacific sedum. Some tiny ones were about. Became itchy too.

There is going to be a great amount of water standing on Sierra mid and upper forest landscapes this summer during the snow pack melt phase dammed up by shadowed snow beneath trees that will take much longer in those forest areas to melt down. Mosquitoes will make life miserable for forest deer, bear, marmots, pikas, squirrels, mice, etc but in any case will much prefer sweaty smelly humans wearing shorts, t-shirts, and a baseball cap. Mosquitoes will breed in those still waters repeatedly in cycles of increasing numbers before the standing water finally seeps away. Then they will fly up in whining circling mini tornadoes to your favorite lake destinations at timberline elevations.

David :eek:
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Re: 2017 Mosquito Reports

Postby mkbgdns » Sun May 14, 2017 2:24 pm

5/8-10. Hogdon Meadow, Yosemite Valley, 0.
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Re: 2017 Mosquito Reports

Postby Nighthawk » Wed May 17, 2017 10:28 pm

5/13-14, Calaveras Big Trees, 0

At two low elevation locations near Mt. Diablo in the last two weeks I've seen large swarms, but none biting.
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