Posts Tagged: agriculture
Eat More Plants! Eat Local, Live Balanced: Tips for a Healthier Planet and You
Eating more plants and sourcing food locally are two of the simplest ways to improve personal health, protect the environment, and even save money. By making small adjustments to our diets, such as incorporating more fruits and vegetables and reducing...
Avocado Leaves Last and Last
Avocados come from a wet environment. The Guatemalan and Mexican races come from cloud forest environments that are dripping much of the year from if not rain, a high humidity that creates a cloud-like condition. These are conditions that leaf fungi love, so in order to protect from leaf fungi, they have developed a waxy cuticle so that water runs off. This also protects the leaf from water that would dissolve nutrients in the leaf. This is one reason that foliar nutrient sprays don't work well with avocado. They can get into flowers, so floral sprays can work. But then you might mess up pollination.
Another consequence of this cuticle is that the leaves are resistant to decay. One reason for the thick leaf duff/mulch/layer found in avocado orchards.
I tagged leaves that had newly fallen with different colored propylene string at time different times of the year. Leaves were 1 month, 6 months and one year old. The leaf on the right is one year old. That waxy layer is really resistant.
New Weatherman at ANR
- Author: Pamela S Kan-Rice
“We are very excited to have Daniel Swain join UC ANR,” said Glenda Humiston, UC vice president for agriculture and natural resources. “He brings a unique blend of skills and expertise that are crucial to meet the challenge of climate change, here in California and across the globe. Daniel's research – and his ability to clearly explain the latest findings in climate science – can equip fellow academics, policymakers and communities with the vital tools they need to forge effective and sustainable solutions.”
Swain is known for his exceptional science communication skills, explaining weather and climate in terms easily understood by the public.
“I spend a great deal of time engaging directly with the public in California and beyond on weather, climate and disaster-related topics, so I'm thrilled to be joining UC ANR—where broad dissemination of research-based information is a key part of the mission,” Swain said. “I'm grateful for ANR's support for my unusual hybrid climate research and science communication role, and look forward to helping expand ANR's virtual and statewide reach in the years to come.”
In November, Swain was named one of Vox's Future Perfect 50 – “the thinkers, activists and scholars working on solutions to today's (and tomorrow's) biggest problems.” Vox wrote: “Our communities and institutions are largely unequipped to fully understand, let alone deal with, the impacts of climate change. That's where climate experts should, theoretically, come in. But knowing the science is one thing – being able to effectively communicate it is a whole other ballpark. Climate scientist Daniel Swain is that desperately needed liaison.”
On his widely read Weather West blog, Swain has been sharing his perspectives on California weather and climate since 2006. He hosts regular “virtual office hours” for the public on YouTube. On X/Twitter, he has more than 101,000 followers.
The “Weather Whisperer” fields hundreds of calls from reporters every year and has been the single most-quoted expert in recent years at UCLA, where he was a climate scientist in the Institute of the Environment and Sustainability. Last year, when Swain was seeking institutional support that would allow him to do science communication as well as research, a Los Angeles Times columnist wrote, “I certainly rely on Swain and other scientists to tell environmental stories.”
The term "Ridiculously Resilient Ridge" was coined in 2013 by Swain on his Weather West blog to describe the large, formidable high-pressure mass that persisted over the West Coast during winter and diverted storms away from California, contributing to the state's 2013-2017 drought.
Before joining UC ANR, Swain, who grew up in the Bay Area, was at UCLA and held a concurrent appointment as a research fellow in the Capacity Center for Climate and Weather Extremes at the NSF National Center for Atmospheric Research since 2018. While holding a 100% appointment with UC ANR, he will maintain his associations with UCLA and NSF NCAR.
Swain holds a Ph.D. in Earth system science from Stanford University and a bachelor's degree in atmospheric science from UC Davis.
He will be the keynote speaker at the California Irrigation Institute's annual conference on Jan. 27 in Sacramento. His talk is titled “Drier and Wetter in 21st Century California? Managing Increasing Hydroclimate Whiplash in a Warming World.”
In addition to posting on his blog at weatherwest.com, Swain is also on Twitter/X @Weather_West, Bluesky https://bsky.app/profile/weatherwest.bsky.social, YouTube https://youtube.com/@weatherwest, Threads https://threads.net/@weather.west and Mastodon https://mastodon.social/@weatherwest.
Check out his latest Weather Discussion and the Dipole
https://weatherwest.com/archives/43171
weather map
Leps - Leaf Eating Jewels
They can be so destructive, but they sure are beautiful. Leps or worms can be found on fruit tyrees.
Citrus Lepidoptera (“Worms”) https://ipm.ucanr.edu/agriculture/citrus/
California Orangedog· Papilio zelicaon
Amorbia (Western Avocado Leafroller)· Amorbia cuneana
Citrus Leafminer· Phyllocnistis citrella
Fruittree Leafroller· Archips argyrospila
Loopers· Cabbage looper: Trichoplusia ni· Citrus looper: Anacamptodes Fragilaria
Omnivorous Leafroller· Platynota stultana
Orange Tortrix· Argyrotaenia franciscana (=A. citrana)
(Photo of M.J.W. Cock & D.H. Burris)
Pink Scavenger Caterpillar· Pyroderces rileyi
Western Tussock Moth· Orgyia vetusta
Avocado Leps
As well as Orange Tortrix, Omnivorous Looper and Amorbia: https://ipm.ucanr.edu/PMG/C008/m008bpcaterpillars.html
In avocado look for:
Avocado Leafroller/Leafminer ·Caloptilia sp.
worms of citrus avocado Page 1
worms of citrus avocado Page 2
worms of citrus avocado Page 3
worms of citrus avocado Page 4
One Last Act of 2024
Get the Latest and the Last
Dec 23, 2024 | View All Issues
This edition includes the following:
- Preparing Frost Protection Measures
- The National Clean Plant Network, with emphasis on the National Clean Plant Network — Citrus
- Development of integrated pest management for huanglongbing (HLB) in Florida
topics in sub masthead