2018 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.
Post Reply
User avatar
Topix Acquainted
Posts: 21
Joined: Wed Mar 09, 2016 12:45 pm
Experience: Level 3 Backpacker

Red Peak Pass loop 6/23-6/26

Post by BayHiker » Wed Jun 27, 2018 10:25 am

Yosemite Valley - Clark Fork: 2
Clark Fork - Merced Pass Lakes: 3-4
Ottaway Lakes: 2.5
Red Peak Pass & basin: 1
Upper Merced Peak Fork - along Triple Peak Fork: 3-4 and determined
Lower Merced Peak Fork - Merced Lake: 1-2
Echo Valley: 3 at times
Rest of the way back to Yosemite Valley: 1-2 and pretty feeble

At their worst, I'd have 20+ mosquitoes biting at once - through my clothes and regardless of Deet. A few even bit through my rain layer! Some those boots-off-sandals-on stream crossings (Illilouette Creek, upper Merced Peak Fork) were grim.

User avatar
Topix Expert
Posts: 464
Joined: Wed Jul 19, 2006 7:09 pm
Experience: N/A
Location: Sonora

Emigrant 6/25-27

Post by MountainMinstrel » Wed Jun 27, 2018 7:40 pm

Just finished a trip in Emigrant.`(Trip report to follow)
Hyatt Lake 3
Louse Canyon 4
Studhorse Meadow 4
Chain Lakes 1 (but I was only there for lunch)
Now here is the thing I found amazing. The trail out to Box Spring TH is basically one graint meadow and the skeeters were O
Just an old musician who loves the Mountains.

User avatar
Topix Regular
Posts: 150
Joined: Tue Jul 16, 2013 8:48 am
Experience: Level 4 Explorer

Muriel Lake

Post by astrogerly » Sat Jun 30, 2018 4:08 pm

Skeeters were pretty heinous at Muriel - probably 4 overall. We had a decent wind most of the afternoon that helped a bit, but they were still bad. Really bad at the normal dusk/dawn times too. Surprised by the number we encountered at Goethe too... maybe a 2-3 there.

Side note, if anyone finds a Thermarest NeoAir Xterm sleeping pad at Muriel, let me know. It seems to have rolled away while packing and just noticed it missing when we got home. It's in a dark grey sack that it came with. Posted elsewhere already, but never hurts to mention on a frequented post.

User avatar
Topix Newbie
Posts: 3
Joined: Fri Aug 30, 2013 12:23 pm
Experience: Level 4 Explorer
Location: Eastern Sierra

Emigrant Wilderness 6/28-7/1

Post by hkyfsh » Sun Jul 01, 2018 9:14 pm

Jun 28 - Jul 1

Emigrant Wilderness/Latopie/Koenig/Leavitt Lakes

Latopie Lake via Sonora Pass PCT

Surprised to have a bug free weekend. Day hiked from Latopie (still half frozen) to Koenig to Leavitt, up the trail from Leavitt to the PCT and back to Latopie.

Sonora Pass Trailhead - 0
Latopie Lake - 0
Koenig Lakes - 0
Leavitt Lake - 0

Breezy on Thursday but calm Friday - Sunday. Lots of non biting bugs when walking through the grass but they didn't bother us.
Last edited by maverick on Mon Jul 02, 2018 9:46 am, edited 1 time in total.
Reason: subject updated

User avatar
Topix Expert
Posts: 822
Joined: Tue Jul 26, 2011 4:44 pm
Experience: Level 4 Explorer
Location: Palo Alto, CA

Tahoe Rim Trail @ 9000', north end of lake, 6/30

Post by wildhiker » Sun Jul 01, 2018 11:04 pm

Day-hiked the Tahoe Rim Trail on 6/30 from the Martis Peak road up over Mt Baldy and to a point under Rose Knob Peak, with elevations ranging from 8,000 to just over 9,000 feet. Light breezes. No mosquitoes.

User avatar
Topix Expert
Posts: 822
Joined: Tue Jul 26, 2011 4:44 pm
Experience: Level 4 Explorer
Location: Palo Alto, CA

Castle Valley - Round Valley N of Donner Summit 7/1

Post by wildhiker » Sun Jul 01, 2018 11:06 pm

Day-hiked from the turnout off I-80 at Donner Summit up the Castle Valley jeep trail and over Castle Pass to Round Valley, returning on the PCT. Elevations 7200 to 8000 feet. No mosquitoes in open sunny areas, but in the forested areas, they were landing and biting whenever I stopped - level 2.

User avatar
Founding Member
Posts: 389
Joined: Thu Aug 26, 2010 6:19 pm
Experience: N/A

Cottonwood Lakes-Soldier Lake 6/29-7/1

Post by KathyW » Mon Jul 02, 2018 9:33 am

6/29/18: Cottonwood Lakes Trailhead to Lower Soldier Lake via New Army Pass: They were mostly 0-1, but they were a 4 at Rock Creek and a 2 in the evening at Soldier Lake.

6/30/18: Soldier Lake to Joe Devel Peak: 0-5. They were mostly 0-1 except they were a 5 along the short section where the trail follows Rock Creek between the Soldier Lake Junction and the tarn (Lake) along Rock Creek where I left the trail to head up to Joe Devel Peak. They were also a 4 at Soldier Lake in the evening just after sunset, but otherwise about a 2 at Soldier Lake (0-1 with Deet on).

7/1/18: Soldier Lake to Cottonwood Pass and out: 0 but I did spray with Deet before leaving camp and was out by 1:30 pm.

Comments: There was a light breeze that helped and because it was really bad along the creek. Camping way up on the hill in the trees above Soldier Lake was reported to be pretty bad but I was lucky to get a nice campsite in the rocks just above the lake where there was a breeze.

User avatar
Topix Novice
Posts: 18
Joined: Tue Jun 17, 2014 6:27 pm
Experience: N/A

Cottonwood Lakes - Muir Lake 6/29-7/1

Post by Pearl » Mon Jul 02, 2018 3:59 pm

6/29, 6/30, 7/1 Cottonwood Lakes trailhead to Muir Lake - 2
Hiked around the basin and up to High Lake. The only time I even noticed mosquitoes were near water and that was early am and at dusk. I sprayed all my clothing before the trip and did not get bit once. Used a head net after dinner one night. The next night just retreated to the tent at dusk. Light breeze most of the time helped.

User avatar
Topix Expert
Posts: 453
Joined: Tue Jun 18, 2013 11:59 am
Experience: Level 4 Explorer
Location: Alpine Meadows, CA

Tamarack Lk, Lonely Lk, Tablelands 6/26-6/30

Post by maiathebee » Mon Jul 02, 2018 8:56 pm

6/27 - Wolverton to Buck Crk via Panther Gap - 1
6/28 - Tamarack Lake - 2
6/29 - Lonely Lake - 1
6/30 - Lake 11,200 - 2

Mostly it was breezy and skeeters not too bad, but they were definitely there when the breeze let up in the evenings.
oh hey! you're reading my signature.
that's nice. want to check out my blog?
here it is: plutoniclove.com
ig: @plutonic_love

User avatar
Topix Acquainted
Posts: 24
Joined: Tue Jul 24, 2012 10:10 pm
Experience: N/A

Leavitt Meadows to Dorothy Pass 7/2 to 7/6

Post by maytag » Sat Jul 07, 2018 8:21 am

7/2 - Leavitt Meadow Trailhead to Fremont Lake - 1 but 2 at the lake
7/3 - Fremont to Stella - 4 at Stella - tried to camp up high to catch the breeze
7/4 - Stella to Chain of Lakes - 2 - camped up high with a strong breeze
7/5 - Lane Lake - 1 on the mosquito but lots people.
Changed our route to stay in the lower elevations due to the mosquito's

Post Reply

Who is online

Users browsing this forum: No registered users and 5 guests