- Author: Kathy Keatley Garvey
247 years!
The seven faculty members honored at the UC Davis Department of Entomology and Nematology's recent retirement luncheon amassed an amazing 247 years of service:
- UC Davis distinguished professor James Carey, 44 years, faculty member since 1980. He retired in June.
- UC Davis distinguished professor Richard Karban, 42 years, faculty member since 1982. He retired in June.
- UC Davis distinguished professor emerita Lynn Kimsey, 35 years, faculty member since 1989. She retired Feb. 1, 2024.
- Robert Kimsey, adjunct professor, 35 years, faculty member since 1989. He retired in June
- UC Davis distinguished professor Jay Rosenheim, 34 years, faculty member since 1990. He retired in June.
- UC Davis distinguished professor Diane Ullman, 29 years, faculty member since 1995. She retired in June.
- Sharon Lawler, professor emerita, 28 years, faculty member since 1995. She retired in January 2023.
Read about them on our UC Davis Entomology and Nematology website, with links to individual stories. You may have interacted with one or more of them through their research, teaching or public service.
As molecular geneticist and physiologist Joanna Chiu, professor and chair of the department, said prior to the retirement luncheon: “Our retiring faculty will leave behind some very big shoes to fill. “They have set the bar very high for all of us with their passion to lifelong scientific exploration, perseverance to achieve intellectual and mentoring excellence, and dedication to the department, UC Davis, and external stakeholders. We are so proud to call them colleagues and mentors and they will no doubt continue to inspire us to carry on their legacy. It is with our most sincere appreciation that we wish all of them the best in their new endeavors and adventures in this next chapter of their lives."
247 years of service!
![UC Davis distinguished professor James R. Carey, 44 years of service (Photo by Kathy Keatley Garvey) UC Davis distinguished professor James R. Carey, 44 years of service (Photo by Kathy Keatley Garvey)](/blogs/blogcore/blogfiles/107695.jpg)
![UC Davis distinguished professor Richard UC Davis distinguished professor Richard](/blogs/blogcore/blogfiles/107696.jpg)
![UC Davis distinguished professor emerita Lynn Kimsey, 35 years of service. (Photo by Kathy Keatley Garvey) UC Davis distinguished professor emerita Lynn Kimsey, 35 years of service. (Photo by Kathy Keatley Garvey)](/blogs/blogcore/blogfiles/107697.jpg)
![Robert Kimsey, adjunct professor, 35 years of service (Photo by Kathy Keatley Garvey) Robert Kimsey, adjunct professor, 35 years of service (Photo by Kathy Keatley Garvey)](/blogs/blogcore/blogfiles/107698.jpg)
![UC Davis distinguished professor Jay Rosenheim, 34 years of service. (Photo by Kathy Keatley Garvey) UC Davis distinguished professor Jay Rosenheim, 34 years of service. (Photo by Kathy Keatley Garvey)](/blogs/blogcore/blogfiles/107699.jpg)
![UC Davis distinguished professor Diane Ullman, 29 years of service. (Photo by Jael Mackendorf) UC Davis distinguished professor Diane Ullman, 29 years of service. (Photo by Jael Mackendorf)](/blogs/blogcore/blogfiles/107700.jpg)
![Professor emerita Sharon Lawler, 28 years of service. (Photo by Kathy Keatley Garvey at UC Davis Picnic Day) Professor emerita Sharon Lawler, 28 years of service. (Photo by Kathy Keatley Garvey at UC Davis Picnic Day)](/blogs/blogcore/blogfiles/107701.jpg)
- Author: Deniz Inci
- Author: Kassim Al-Khatib
- Posted by: Samson Romano
Loyant® CA Section 2(ee) Recommendation Bulletin for Control of Cattail in Rice
A recommendation bulletin has been released for florpyrauxifen-benzyl (Loyant® CA, Corteva Agriscience LLC, Indianapolis, IN, USA) to control cattail plants in California rice fields and permitted under FIFRA Section 2(ee). Cattail (Typha latifolia L.) also known as common cattail or broadleaf cattail is a perennial wetland weed that naturally occurs widely in nearly all North America and are often considered undesirable, weedy, or invasive. Common cattail is cosmopolitan weed that can grow up to 10-ft tall under favorable conditions. Common cattail has recently been more problematic in the drill-seeded rice systems of the River Delta in California, where common cattail patches infested rice fields in short time intervals. Therefore, we studied the potential use of newly registered rice herbicide, Loyant® CA, on the control of common cattails when applied at different timing.
Cattail control with Loyant® CA at 1.33 pint/A treated plot at 14 days after herbicide application in 2023.
Two field studies were carried out in 2022–2023 at McDonald Island of Sacramento-San Joaquin River Delta. The 2,400-ha island is bounded on the north by San Joaquin River, on the west by Middle River and Latham Slough, and on the south by Empire Cut. The rice fields were at Stockton, CA. Experiments were conducted as a randomized complete block design, with four replicates, where a 3-m by 3-m rice plot was an experimental unit. Herbicide treatments included Loyant® CA at 1.33 and 2.66 pint/A rates at different cattail growth stages.
All Loyant® CA treatments regardless of application rate or timing resulted in 100% cattail control at 28 days after treatments. None of the treatments caused a significant rice injury. Loyant® CA at 1.33 pint/A controls 100% of up to 3-ft tall. For taller cattails from 3-ft to 6-ft, a sequential application of Loyant® CA within 14-days intervals at 1.33 pint/A may be required. The Section 2(ee) Recommendation Bulletin states the following use directions. For control of cattail in rice fields, apply Loyant® CA at 1.33 pint/A plus 0.5 pint/A MSO as a broadcast spray to cattail plants up to 3-ft tall. Apply in sufficient water to provide good coverage of the cattail without washing spray solution from leaves. A second application may be made if needed with a minimum retreatment interval of 14 days.
/h3>- Author: Sandipa Gautam
Sandipa Gautam, Area Citrus IPM Advisor serving Kern, Tulare, Fresno, and Madera counties has been maintaining a web page on the Lindcove Website Citrus IPM - Lindcove Research and Extension Center (ucanr.edu). Within this page, she writes a blog on pest issues that are problem for growers in the SJV region. For subscribing, click https://ucanr.edu/blogs/IPMBlog/ and enter your email address. You will receive an email to confirm subscription, follow the instructions to complete subscription. Every time a post is made you will receive and email notification. This page also hosts pest memos of this season and archives from the previous season along with links to Citrus related extension posts, newsletters.
Within the Citrus IPM tab, you will also find Degree Days, which is regularly updated for California red scale for four counties in the SJV. If you are in Ventura county or other citrus growing counties (not in the valley) and California red scale is a pest you manage and are interested in Degree Day calculation and predictions, please contact sangautam@Ucanr.edu .
If you would like to receive emails on pest memos/other events, please send an email to sangautam@ucanr.edu to be added to her email list.
![citricola scale blog citricola scale blog](/blogs/blogcore/blogfiles/107691.jpg)
- Author: Mark P Bolda
I made a visit to a beautiful blackberry field a few days ago and was shown this example of sunscald, in this case on mature Ouachita blackberry. Notice these are not tunneled, and also one observes immediately that only the part of the fruit facing the sun is affected.
While today it started to become quite warm - thinking it'll be hitting a toasty 80 degrees here before long - this was not the situation when the damage occurred on these fruits a few days ago. More likely, this is a case of ultraviolet radiation (UV) striking and engendering dysfunction in those druplets (the juice filled sacs which compose in aggregate what people know as the blackberry fruit) which are now discolored.
It is not uncommon to see this disorder right around this time of year, coming so soon as it does after the summer solstice, which we all know is June 21 and the longest day of year. Which means the greatest amount of UV exposure of the year for everything outside.
This is also the time of year when I get the most calls about aborted flowers in strawberry, and sure enough one photo already floated into my phone this morning, some varieties are more sensitive to UV. Meaning that the lengthy exposure of flowers to this radiation during the day of and days before and after the solstice is the time that people tend to see this type of damage.
![Sunscald on Ouachita blackberry. Sunscald on Ouachita blackberry.](/blogs/blogcore/blogfiles/107690.jpg)
Follow these tips for the month of July to prevent pests in the garden and landscape. To see more tips specific to your region, visit the Seasonal Landscape IPM Checklist on the UC IPM website.
- Clean up fallen fruit or nuts to avoid attracting or harboring pests.
- Deter borers by deep watering trees that are adapted to summer rainfall. Avoid pruning or creating open wounds that can also attract borers.
- Cover fruit trees with netting to exclude birds and other vertebrate pests.
- Prevent Eutypa dieback. Prune apricots and cherries only during July and August in inland areas and during August near the coast.
- Look for leaffooted bugs feeding on fruit and nuts such as almonds, pistachios, and pomegranates.
- Maintain a fire safe landscape by creating “defensible space.” Thin out thick vegetation and eliminate fuel ladders that allow fire to climb up trees or structures. Remove dry, resinous or dead plants and flammable debris. Cut branches back 15 to 20 feet from buildings. Use non-combustible surfaces for walkways, patios and driveways.
- Bag apple and pear fruit to prevent codling moth damage. Remove infested or dropped fruit promptly.
- Monitor for redhumped caterpillars. Look for skeletonized leaves or individual caterpillars feeding on sweet gum, plum, walnut, redbud, and other deciduous trees and shrubs.
- Inspect apple, citrus and especially stone fruit for bacterial blast, blight, and canker. Remove entire affected branches in the summer, making cuts several inches away in healthy wood.
- Watch for yellowjackets and other wasps. Keep garbage cans sealed and eliminate food or drinks left outside. Use lure or water traps to control yellowjacket populations.
Don't see your county on the checklist or want to provide feedback? Let us know!
![Pest prevention tips for July. Pest prevention tips for July.](http://ucanr.edu/blogs/UCIPMurbanpests/blogfiles/107689.png)