The 2021 Field Day for Nematode Management in Walnuts and Almonds will be held Nov 30, 2021 from 12:00pm to 4:00pm.
When: November 30, 2021 from 12:00pm to 4:00pm
Where: Kearney Agricultural Research and Extension Center
9240 S Riverbend Ave
Parlier, CA 93648
559-646-6555
The field day is for field research representatives, farm advisors, PCAs, growers, consultants, and anyone else interested rootstock development, pre-plant treatments, post-plant treatments ...
Field Day flyer
- Author: Amy Weurdig
It's been awhile since I attempted gardening any kinds of vegetables out in the Mesa after the initial year of failures.
I thought hard about putting in raised beds closer to the house, maybe putting in a pest deterrent fence around it.
I've had some fun and a lot of success having my garden at the Bishop Community Garden, so why would I want to garden at home? Well, it'd be great to just pick what I needed for the meal right then, rather than planning on it ahead of time and driving the 11 miles into town. Not very eco-friendly to keep driving back and forth to get a tomato!
So this year, we had some left over tomato starts and I acquired a six pack of habanero peppers that I decide to try out in a trug – you know one of those rubbery garden buckets. The idea being that the trug would elevate the plants enough that the critters couldn't reach them – like a raised bed.
Fast forward 3 weeks: the plants looked pretty good. Had some crazy windy, cold, rainy weather for a couple weeks,but the plants still looked good. Then one evening I went out to water and found stumps.
All my plants were stumps. Cleanly eaten with no evidence at all other than the stumps.
So, my test showed that if I should do raised beds, they need to be at least 3' feet off the ground, enclosed in a wire cage, in order to see any fruits of my labor.
Here is the moral of my story: I'll keep my plot at the Community Garden where I get to see my friends, pull weeds, and pick my veggies free of pepper-eating varmints.
- Author: Ben Faber
Plant-parasitic nematodes are microscopic, unsegmented roundworms that live in soil and plant tissues and feed on plant roots. The predominant species parasitic on citrus in California is the citrus nematode. This nematode is reported to be present in most citrus orchards and in all soil types. It also parasitizes grape, lilac, olive, and persimmon. Citrus nematode attacks roots by burrowing its anterior end deep inside the root cortex while the posterior end remains outside in the soil.
The sheath nematode is less widespread than the citrus nematode; it has been found on citrus in the Coachella Valley and on some native desert plants. However, it has a broad host range and thrives well at high temperatures and at low moisture levels
From UC IPM Pest Management Guideline: http://ipm.ucanr.edu/PMG/r107200111.html
Citrus nematodes, Tylenchulus semipenetrans, parasitizing a citrus root. The second-stage larvae initially feed on root hairs. The larvae then penetrate into the feeder roots, molt three times, and establish a permanent feeding site (nurse cells) inside the root cortex. The swollen rear end of the mature female remains outside the root
Find out more about these underground animals from UC AG Expert, Ole Becker.
Register: https://ucanr.edu/sites/ucexpertstalk/
Management of plant-parasitic nematodes in citrus orchards - Thursday, February 21, 2019, from 3-4 pm
Dr. Ole Becker, cooperative extension specialist & nematologist at UC Riverside, will discuss plant-parasitic nematodes in citrus, their biology, symptoms, and management, including soil & root sampling, interpretation of analysis results, and rootstock selection. One DPR CE hour (other) and one CCA CE hour (IPM) were approved.
And there's more to hear, coming up:
Laurel wilt - Wednesday, March 20, 2019, from 3-4 pm
Dr. Monique J. Rivera will present current knowledge of the laurel wilt, its biology, and spreading. More information to come.
Management of Glyphosate-Resistant Weeds in Orchard Crops - Wednesday, April 24, 2019, from 3-4pm
Dr. Brad Hanson, cooperative extension specialist, will discuss what is herbicide resistance, current state of resistant weeds in CA permanent crops, identification and lifecycle of key glyphosate-resistant weeds, selection pressure for resistant biotypes and species, herbicide modes of action, and examples of herbicide programs for orchard crops. One DPR CE hour (other) and one CCA CE hour (IPM) are pending.
To register for any of the above webinars, please visit https://ucanr.edu/sites/ucexpertstalk/ and click on the relevant link on the top of the page.
Recordings of the past webinars are available on UC IPM YouTube channel at https://www.youtube.com/playlist?list=PLo3rG4iqv4gHBV3YA6w4wkBufwh7GBjrX
CE hours are NOT available for recorded webinars.
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Please note that webinars are targeted to growers and pest control professionals (PCA, QAL, CCA). Master Gardeners may benefit from participation, however, presented pest management methods, especially chemical control, may not be relevant for them.
Check those roots to see if they are healthy
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- Author: Laura J. Van der Staay
Andreas Westphal helped provide back to back meetings that concentrated on sharing research, discoveries, and disease problems, as well as developing and new pest management technologies for soilborne diseases. These diseases include fungus, nematode, bacteria, and virus populations found in the soil. Attendees included personnel from universities, state agencies, and multiple components of the Ag industry. Information was shared in meeting rooms and field sites. Soilborne pests of food crops, ornamental plants and native plants were discussed. The basic agenda is available online.
- Author: Andreas Westphal
- Editor: Laura J. Van der Staay
Andreas Westphal, UC Assistant Cooperative Extension Specialist in the Department of Nematology at UC Riverside and UC ANR Kearney Agricultural Research and Extension Center started January 15, 2015. Westphal obtained his first two degrees from the University of Göttingen. He received his Ph.D. from the University of California, Riverside under the supervision of J. Ole Becker. After some postdoctoral experience at UC Davis, and some faculty experience with Texas A&M University and Purdue University, he moved back to Germany. He was recruited by UC after Mike McKenry retired.
Westphal's research program will focus on nematode problems of tree and vine crops. He will explore a multitude of cultural, biological and chemical strategies for managing nematodes in almond, grape, peach, walnut and other crops. Westphal moved here from the Julius Kühn-Institut, Braunschweig, Germany where he researched nematode management on field crops, and was responsible for determining plant resistance to plant-parasitic nematodes in the official cultivar release program.