2024 Mosquito Reports

Questions and reports 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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sidsquid
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North/South Lake Loop 6/29-7/4

Post by sidsquid »

Lamarck Lakes: 3
Darwin Bench: 2
Evolution Basin: 3
Dusy Basin: 5
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DevFun
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Devils Postpile - Becks Lake

Post by DevFun »

Devils post pile 0-1

Becks lake: 5

We couldn’t stand them and turned around, maybe better past 10k feet, but it didn’t seem like there was an end in sight. Worse up high at 8-9.7k feet.
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dave_p
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7/2 - 7/4: Relief Reservoir to Emigrant Lake

Post by dave_p »

MOSQUITO HATCH ALERT: Sheep Camp all the way up to Mosquito Pass and then down to Emigrant Lake: varies between 3 and 4; 4-5 near water sources.
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riemannzetagambit
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6/28-6/30 Big Pine Creek

Post by riemannzetagambit »

Campgrounds (Sage Flats, trailhead): 0-1
Second Lake: 2-3

Light wind helped to keep bugs down.
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Nozmo King
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Desolation Wilderness 7/4 - 7/6

Post by Nozmo King »

Meeks Bay TH: 1-2
Crags Lake Trail: 1-2, with 2-3 in shady, wet areas & 0-1 in dry, sunny stretches
Rubicon Lake: 1-2, with 2-3 at dawn & dusk

Our mosquito friends are around but were held at bay with generous amounts with DEET & a head net
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oddtiger
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SE Yosemite 7/4-7/6

Post by oddtiger »

Chain Lakes: 4
Breeze Lake:3
Rutherford Lake:2
Anne Lake:3
Slab Lakes: 3
Walton Lake: 2
Edna Lake: 1
Adair Lake:5
upmost lake of Red creek: 1
Lower Ottoway: 3-4
sw lake of Merced Peak: 1
all meadows below 10000 are pretty much 3-4
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mpeters
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Emigrant 7/5-7/6 Gianelli TH

Post by mpeters »

Gianelli TH to Granite Lake: 1, spray only
@Granite Lake: 2, late evening and morning only
0 during the day

We didn't use anything besides normal spray and little Deet. I had hiking clothes treated with Permethrin which helped deter them from touching down in the evening and morning.

A day hiker from Wire Lakes said they were fierce there.
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Flamingo
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Virginia Canyon -- 7/4 to 7/6

Post by Flamingo »

Upper Virginia Canyon (above 10k') -- 1 at evening, 0 during day
Glines Canyon (east side of Virginia Pass) -- 1-2
Green Lake -- 1-2
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Frogblast
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Grouse Ridge Non-Motorized Area, 7/1 - 7/2

Post by Frogblast »

1. Few mosquitos seen around dusk, and we got no bites with treated clothing.
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Harlen
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Re: 2024 Mosquito Reports

Post by Harlen »

6/29 - 7/7

Virtually no mossies on the eastern sides of Sawmill and Taboose Passes.

Level 2 in the high basins west of those passes.

Level 3-4 in the worst places along our route, which were the basin under Window Peak; the basin under (east) of Arrow Peak, and on the Bench Lake terrace; and in all of the Lake Basins-- (Lake, Dumbell, and Amphitheater); in the high basin (11,500') under Split Mtn; and the lake basin under Striped Mtn. Could've reached level 5 at times!

Head-nets helped a lot, Eric lost his bushwhacking, and so he got mine, and I resorted to heavy deet use, which worked like a charm, but now I will surely die young.
Properly trained, a man can be dog’s best friend.
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