252 Photos and videos
Pinned Tweet
9 Feb 2021
Have you seen aphid mummies and wondered "what's going on inside?" Here's a pea aphid that has been mummified (dried/swollen) by the braconid parasitoid Aphidius ervi, right next to its unsuspecting compatriot. The chunky wasp larvae is moving inside the remaining aphid "husk."
1
20
43
9 Jan 2024
Sound on! Only two miles from the house, beautiful sunset and geese moving around the valley this winter. Lucked out this flock flew directly at/over me after they got up several miles away.
5
164
6 Sep 2023
Our dept. is recruiting an "Assistant Professor of Insect Biology"! The position description is broad: "We define insect biology in the broadest sense."
First review date is Dec. 1. See link for additional details.
recruit.ucdavis.edu/JPF05990
beetles : ucdavisentgrad.square.site/
1
2
10
2,196
7 Jun 2023
Still time to plan on coming to our cotton meeting! DPR CE credits approved. Message with any questions.
5 Jun 2023
Come join us for this year UC Cotton Meeting and Field Day. To access the registration form, click here bit.ly/3pOyafH
1
520
Ian Grettenberger retweeted
4 Jun 2023
Easter egg time. I put a little surprise in this metal bug (thank you for all the ♥️)...it has gears, and so do real bugs!
So planthoppers...hop on plants. To make sure both their tiny legs jump simultaneously, they have GEARS BETWEEN THEIR LEGS. 1/2 paperpile.com/shared/IkGYt4
4
46
280
36,439
Ian Grettenberger retweeted
23 May 2023
See #CArice fields seeded at 100 MPH! Many benefit from every field planted in the #SacValley including businesses, communities and wildlife.
6
12
2,468
Ian Grettenberger retweeted
25 Apr 2023
Our amazing team with our Weedy Rice table at the statewide UCANR conference in Fresno!
#californiarice #rice #ucanr #ucrice
2
8
712
13 Apr 2023
Jr. Specialist position (UCD) still open through tomorrow (4/14) for the 1st review (recruit.ucdavis.edu/JPF05603). Limited to people with a Bachelor's. It's for one year, assisting on a variety of projects in field and veg crops. Easy app, share with anyone that would be a good fit.
4
4
486
20 Mar 2023
Echoing this from my own account too! Hopefully folks enjoyed seeing the beasties (tadpole shrimp) up close. I WAS told “they actually are kind of cute”.
20 Mar 2023
Thanks to all who came out to the Rice Production Workshop last week! Great turnout and lots of good questions and comments. Thanks to @lundbergfarms for providing their fantastic space for this event as well.
4
333
Ian Grettenberger retweeted
18 Mar 2023
Mostly clear skies on Wed provided an excellent view of the lower Sac River's flood control measures.
#CAwx #CAwater
Photo 1📷| Sutter Bypass ends at the Sac River, spills over Fremont Weir & into the Yolo Bypass.
Photo 2 📷|✨Zoom, enhance✨
🛰️Sentinel-2/European Spacy Agency
ALT Satellite image of flooding along the Lower Sacramento River from Wednesday, March 15, 2023, showing the Sutter Bypass and Yolo Bypass filled with water as a flood control measure.
ALT Satellite image of flooding along the Lower Sacramento River from Wednesday, March 15, 2023, zoomed in at Sutter Bypass and Yolo Bypass filled with water as a flood control measure.
3
32
113
33,974
13 Jan 2023
Amazing footage but horrible to see. Looks like a view over this area:
maps.app.goo.gl/Nvxwbv3dm3T5…
13 Jan 2023
Monterey County residents were advised to prepare for major roadways to be closed due to flooding between Thursday night and Sunday morning as flood-stage water flows move through the Salinas River to the coast. nbcbay.com/qVNpa2f
1
2
7
913
Ian Grettenberger retweeted
12 Jan 2023
I’ve stood near this same corner on the west side of the Gonzales river bridge everyday this week and today the Salinas river is now flowing over the road, turning the nearby ag field into a lake..
2
66
291
63,653
Ian Grettenberger retweeted
2 Jan 2023
The Tisdale Weir across the Sacramento River from 108 is now running. Several Weirs and Bypasses along the river provide relief during high water levels by rerouting excess water.
1
8
27
10,087
13 Nov 2022
Do it!
12 Nov 2022
Looking forward to seeing folks at #EntSoc22!!! Come by Sunday at 2:05 in room 306 for my talk on developing proactive IPM strategies for Tuta absoluta invasion!
1
7
Ian Grettenberger retweeted
30 Oct 2022
We have a new position available in the Department of Entomology and Nematology at UC Davis for an Assistant Professor of Teaching (LPSOE)! Come join our wonderful faculty to help instruct the next generation of Entomologists! Apply here - recruit.ucdavis.edu/JPF05348
22
29
21 Oct 2022
Our lygus trial in cotton is looking pretty good as we finish off the season. Challenging pest in CA cotton, so more tools are always needed.
2
3
12
Ian Grettenberger retweeted
6 Oct 2022
We chat with grower Josh Sheppard about how harvest is coming along. Every acre of #carice harvested is jobs on the farm, with more work to be done at the dryers and mills. #sacvalley Listen here:
1
6
15
30 Sep 2022
Had a great time presenting at the @ucanr Kearney REC Alfalfa and Forage Field Day. Lots of good (hopefully!) usable information for folks in attendance. I covered alfalfa weevil insecticide resistance. Dan Putnam shown here covering parts of the alfalfa plant/feed quality.
1
8
30 Sep 2022
Some photos from farm advisor Nick Clark. I got him in front of my slides as he got things rolling for the indoor portion. Kudos for great work to the organizing team. Agenda is here (ucanr.edu/blogs/blogcore/pos…) to make sure you keep an eye out for it next year if you missed it.
1
23 Sep 2022
I am always excited to see the fall green up after the first rains, although it definitely seems rather early this year!
3