Ian Grettenberger

Cooperative Extension Specialist @UCDavis @UCANR / Dept. of Entomology and Nematology Applied entomologist and insect ecologist. Tweets are my own. he/him

[Ian Grettenberger @IGrett]

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."

[Ian Grettenberger @IGrett]

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.

[Ian Grettenberger @IGrett]

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.

https://t.co/kbJsxfmj3r

beetles : https://t.co/UW4NJUoXxQ

[Ian Grettenberger @IGrett]

@DSKarp @saraeemery No, but that would be great! @saraeemery let me know if you'd like to chat at some point.

[Ian Grettenberger @IGrett]

Still time to plan on coming to our cotton meeting! DPR CE credits approved. Message with any questions.

[CCGGA @CaliCotton]

Come join us for this year UC Cotton Meeting and Field Day. To access the registration form, click here https://t.co/VYrUMmrnCk

[D. Allan Drummond Art @dadrummondart]

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 https://t.co/0G794DasGF

[CA Rice Commission @RiceNews]

See #CArice fields seeded at 100 MPH! Many benefit from every field planted in the #SacValley including businesses, communities and wildlife.

[Ian Grettenberger @IGrett]

@chdiep Thanks, glad that “did something” for you. Trying to mix things up a little!

[Ian Grettenberger @IGrett]

UC Davis small grains and alfalfa/forages field day.

[UCCE Rice Team @UCRice]

Our amazing team with our Weedy Rice table at the statewide UCANR conference in Fresno!
#californiarice #rice #ucanr #ucrice

[Ian Grettenberger @IGrett]

Jr. Specialist position (UCD) still open through tomorrow (4/14) for the 1st review (https://t.co/Tl1imaXrTJ). 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.

[Ian Grettenberger @IGrett]

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”.

[UCCE Rice Team @UCRice]

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.

[NWS Sacramento @NWSSacramento]

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

[Ian Grettenberger @IGrett]

Amazing footage but horrible to see. Looks like a view over this area:
https://t.co/fxkE4qtFJ7

[NBC Bay Area @nbcbayarea]

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. https://t.co/oqZDgmfAAU

[Felix Cortez @FelixKSBW]

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..

[Reclamation Dist 108 @RD108Irrigation]

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.

[Ian Grettenberger @IGrett]

Do it!

[Ben Lee, PhD @bugsbyblee]

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!

[Ian Grettenberger @IGrett]

@AttardoGeoff Ooooo, going to have to chat with you. I need to get some new equipment and see a few things I am going to get. Curious to see what you I went with overall.

[Geoff Attardo @AttardoGeoff]

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 - https://t.co/Oi6U6YSLdT

[Ian Grettenberger @IGrett]

@DominicDReisig Missed all of the good info and discussions plus seeing folks! Life of two academics plus a toddler…

[Ian Grettenberger @IGrett]

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.