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Posts Tagged: Lynn Wunderlich

March news clips

Unprecedented Study Discovers what Urban Coyotes Really Eat

(Care2) Laura Goldman, March 30

Hiking boots, avocados, candy wrappers and fast-food containers. These aren't a few of my favorite things, but they are some of the items found inside the stomachs of dead urban coyotes in Los Angeles and Orange counties.

Since the study began over a year ago, the researchers, led by Dr. Niamh Quinn, the human-wildlife interactions advisor for the University of California Cooperative Extension, have discovered that cats make up only about eight percent of a coyote's diet.

https://www.care2.com/causes/unprecedented-study-discovers-what-urban-coyotes-really-eat.html

Red blotch grape virus confirmed in Calaveras

(Calaveras Enterprise) Jason Cowan, March 29

Red blotch virus, a DNA infection that decreases a grape's sugar levels on the vine, has been confirmed in Calaveras County, officials said last week.

After confirmed cases of the virus were located recently in El Dorado and Amador county vineyards, University of California Cooperative Extension Farm Adviser Lynn Wunderlich saw what she thought were symptoms of the virus in Calaveras and recommended farmers test for red blotch.

The results came back positive.

http://www.calaverasenterprise.com/news/article_4ebae972-33aa-11e8-ab5c-cb61df3e8deb.html

Raising chickens at home? Get their eggs tested for free

(Daily Democrat) ANR News release

Californians who raise poultry outdoors are invited to get their eggs tested for contaminants.

To find out if harmful substances on the ground that are eaten by hens get passed along in the eggs they lay, Maurice Pitesky, UC Cooperative Extension poultry specialist at the UC Davis School of Veterinary Medicine, is providing free egg testing.

“We're trying to understand the connection between the environment that backyard poultry are raised in and the eggs they are producing,” Pitesky said.

http://www.dailydemocrat.com/article/NI/20180329/FEATURES/180329815

Here's what trade tariffs could mean in Merced County, where nuts are big business

(Merced Sun-Star) Thaddeus Miller, March 28

China has threatened retaliatory tariffs on a select group of exports from the U.S. following President Donald Trump's plan to impose tariffs on steel and aluminum imports.

China's tariffs would first hit U.S. products such as avocados and nuts, with 15 percent duties. Beijing, if officials deemed it worthwhile, could also place 25 percent tariffs on American-made goods such as pork and aluminum.

…"It doesn't really matter which one it is, whether it's alfalfa, almonds or wherever it may go," said David Doll, a farm adviser with the Merced County UC Cooperative Extension. "They're as much political as they are anything else."

Nuts are big business in Merced County, where almonds are the second largest commodity at $578.5 million, according to the 2016 Merced County Crop Report, the most recent available. Almonds, pecans and pistachios bring in tens of millions of dollars more.

Out of every dollar made on a farm in the Central San Joaquin Valley, half pays for salaries and 40 cents goes to pay for supplies, Doll said, citing UC cooperative studies.

"Farms are businesses, and if they aren't profitable they're not going to stay in business," Doll said.

http://www.mercedsunstar.com/news/business/agriculture/article207155554.html

A film you may want your favorite doctor, trainer, chef and lawmaker to see

(Farm Week Now) Mike Orso, March 28

In the documentary “Food Evolution,” scientist Alison Van Eenennaam captures a smartphone selfie image of her with Bill Nye, the “Science Guy,” following a spirited forum in New York City on genetically modified organisms or GMOs. That was three years ago. Now, Van Eenennaam has young people coming up to her asking for selfies.

“If we can engage this next generation with critical thinking skills and trying to get to the bottom of what actually is true, I think we will have accomplished our job,” said Van Eenennaam, a University of California-Davis Extension specialist and one of several scientists featured in the film.

http://farmweeknow.com/story-film-may-want-favorite-doctor-trainer-chef-lawmaker-1-173628

Scientists say regulation stifles many new biotech traits

(Agri-Pulse) Jim Weber, March 28

Federal regulation of agricultural biotechnology needs to be based on risk and not on process, a wide range of scientists and food industry executives agreed at the Agri-PulseAg and Food Policy Summit. Coincidentally, a similar message was delivered a day later by a Council on Agricultural Science and Technology (CAST) task force.

“Scientists have been screaming that for 30 years,” said Alison Van Eenennaam, a cooperative extension specialist in animal genomics and biotechnology at the University of California-Davis. “That's where regulation should be.”

…Although the USDA, universities and small businesses have developed dozens of GE crops – with improved traits ranging from healthier and less allergenic to safer and more environmentally sustainable – and carried many through safety and pre-market testing, almost all have been denied commercial release mainly because of U.S. regulatory obstacles,” according to the CAST task force, led by Alan McHughen, who chairs the Department of Botany and Plant Sciences at California-Riverside.

https://www.agri-pulse.com/articles/10764-scientists-say-regulation-stifles-many-new-biotech-traits

If China Strikes Back On Tariffs, California Tree Nut Exports Could Take A Hit

(CapRadio) Julia Mitric, March 27

California agriculture could find itself caught in the middle of the U.S. — China trade dispute.

After President Trump ordered a 25 percent tariff on imported steel and a 10 percent tariff on imported aluminum last week, China hit back, announcing it may impose a 15 percent tariff on agricultural exports from the U.S. 

The U.S. faces competitors for every agricultural product it exports. California wines, for example, compete with wines from New Zealand and Chile. If China hits the U.S. with a 15 percent tariff on wine, that's a problem, explains Dan Sumner, Director of the University of California Agricultural Issues Center.

"We may think California wine is special, but not everybody does,” Sumner said. "And if it's 15 percent more expensive than it used to be because of the tariff, there'll be a substantial reduction in how much gets sold in China."

http://www.capradio.org/articles/2018/03/27/if-china-strikes-back-on-tariffs-california-tree-nut-exports-could-take-a-hit/

State senator to honor UC 4-H program

(Morning Ag Clips)

California State Senator Ben Hueso will honor California and Baja California 4-H with a resolution in the State Senate at 2 p.m. April 2 to recognize the cross-border team that established a 4-H Club in Mexicali, Baja Mexico, in January 2017.

Last year, UC ANR Vice President Glenda Humiston signed a memorandum of understanding with the Baja California Secretary of Agriculture Development, Manuel Vallodolid Seamanduras, to offer UC's 4-H expertise to youth south of the border. The agreement increases the academic, scientific, technological and cultural cooperation that are part of UC President Janet Napolitano's Mexico Initiative.

https://www.morningagclips.com/state-senator-to-honor-uc-4-h-program/

Building an IPM Program to Fight Fruit Flies

(Growing Produce) David Eddy, March 26

When faced with spotted wing drosophila (SWD), it's critical for growers to keep in mind this is almost certainly unlike any pest they have dealt with before. That's because it's one of two species — out of a potential 1,500-plus — that feeds on healthy, not rotting, fruit.

That's certainly not the end of growers' difficulties with SWD, says Jhalendra Rijal, University of California Cooperative Extension Area IPM Advisor, Northern San Joaquin Valley. It's tricky because vinegar flies — the tiny flies often found circling above fruit bowls on kitchen tables — are so ubiquitous. Even the oh-so-common name, “fruit flies,” indicates the pests' omnipresence.

http://www.growingproduce.com/fruits/building-ipm-program-fight-fruit-flies/

Stallion Springs 4-H Swine Group visits local swine breeder

(Tehachapi News) Olivia Loyd, March 24

Tim Sturm, owner and operator of California Swine Services, farrowed approximately 600 piglets this year which will be shown all over California by 4-H and FFA members who take them to fairs and jackpot shows.

Sturm, who has a passion for teaching today's youth about raising swine, allowed the members of the Stallion Springs 4-H swine group to come to his facility on March 17 to learn to process one-day-old piglets. The kids learned to ear notch, dock tails, administer shots and clip needle teeth. Members learned why these processes are necessary, how to do them cleanly and correctly, and last were actually able take part in the process. They also learned valuable information about pig breeding and husbandry.

http://www.tehachapinews.com/lifestyle/stallion-springs--h-swine-group-visits-local-swine-breeder/article_b358c48c-2fd4-11e8-b763-83619955990b.html

World Water Day

(KCAA) Water Zone, March 22

For World Water Day, Glenda Humiston discusses UC water research and what UC is doing to help ensure farmers and other Californians and the environment get the water they need. She also explains the Farm Bill. Humiston is introduced around the 30 min mark.

http://podcasts.kcaastreaming.com/water/ http://youtu.be/hN5pxvVI42A?a

Small Farms Must Include Marketing

(Cal Ag Today) Jessica Theisman, March 22

Mark Gaskell is with the University of California cooperative extension as a small farm and Specialty Crop Advisor for San Luis Obispo County. Gaskell recently told California Ag Today about his work with growers and small farms in the county since 1995.

“Part of my job has to do with applied research and educational programs, and this case related to keeping small farms viable and successful,” Gaskell said. “These activities include troubleshooting problems, helping growers develop new crops and develop new market opportunities that make them more competitive.”

https://californiaagtoday.com/small-farms-must-include-marketing/

How Biocontrols Fit into a Traditional Pest Control Program

(Growing Produce) Carol Miller, March 21

One of the great strengths of using biocontrols is that it allows growers to use traditional chemistries less often, says Surendra Dara, Strawberry and Vegetable Crop Advisor with the University of California Cooperative Extension. Dara was speaking to a packed room at the Biocontrols USA West conference in Carlsbad, CA, hosted by Meister Media Worldwide, the parent company of American Vegetable Grower.

http://www.growingproduce.com/vegetables/biocontrols-fit-traditional-pest-control-program/

Has the California dairy industry gone sour?

(Agri-Pulse) Tyler Ash, March 21 (Subscription only)

Rumors are circulating that a stampede of California dairy producers is heading toward greener pastures in other states. But why?

Experts in the nation's No. 1 milk-producing state have been ruminating on this dilemma for over a decade now, and it seems to stem from the same problems that are plaguing farmers all over America. Typical of the ag industry in general, mom-and-pop farms are going by the wayside and more large-scale farms are increasing production. So, the production seems to truck along but the number of players in that production does not.

“I remember being a kid, driving up I-5 and there were dairies all over the darn place,” said Jeff Stackhouse, livestock adviser for the University of California Cooperative Extension in Humboldt and Del Norte counties. “Now there's one.”

Statistics from the California Department of Food and Agriculture back him up. According to the agency, the state had 1,563 dairies in 2012 and four years later the number was 1,392, an 11 percent decline. The drop was 4 percent from 2015.

...Frank Mitloehner, professor of Animal Science at UC-Davis and a UC Cooperative Extension specialist, said California has lost approximately one fourth of its dairies over the last 15 years. His research focuses primarily on air quality related to livestock production and specified that the number of dairy cows in California hasn't actually decreased, just the number of dairies. He confirmed that most of the dairies that have closed were relatively small and weren't as competitive in today's market.

“The small ones often have a harder time in a strongly regulated environment,” Mitloehner said. “Large dairies generally hire some consultants to deal with air and water regulations to get their dairies to comply, but many small folks lack resources.”

According to Betsy Karle, dairy farm adviser for the University of California's Department of Agriculture and Natural Resources (UC ANR), the primary regulation that significantly affected California dairy producers was the General Order of Waste Discharge Requirement that was implemented by the Regional Water Quality Control Board in 2007, which affected approximately 1,400 dairies in California's Central Valley.

https://www.agri-pulse.com/articles/10689-has-the-california-dairy-industry-gone-sour 

'Buy local' food programs deceive consumers and are rarely enforced, a USA TODAY Network investigation finds

(The Republic) Robert Anglen, March 20

As local-food sales grow into a $20 billion industry, a USA TODAY Network investigation found that state-branding programs designed to inform consumers and support local farmers are deceptive and virtually unregulated.

These "buy local" programs purport to connect shoppers with food from their states by affixing logos and stickers.

…"The word local is chic; it sells things," said Cindy Fake, horticulture and small-farms adviser for the University of California Cooperative Extension. "So it's used by everybody and anybody."

Fake said the word "local" has no clear definition and consumers are easily misled.

"They are likely to be deceived," she said. "Consumers are thinking one way and the marketers know that. They know consumers want local, so they say it's local." 

… "There is a huge diversity across states about what is local," said Gail Feenstra, deputy director of the Sustainable Agriculture Research and Education Program at the University of California Division of Agriculture and Natural Resources. 

Feenstra said there is more transparency on fresh produce because it's easier for consumers to identify where it came from and recognize regional products on store shelves. 

But shoppers need to do their research, she said.

https://www.usatoday.com/story/news/local/arizona-investigations/2018/03/13/buy-local-made-food-labels-programs-deceive-consumers-rarely-enforced-usa-today-network-finds/389155002/

Roof Rat Damage Causing Concern for Growers

(AgnetWest) Brian German, March 16

Typically more of a problem in urban areas, roof rat damage is causing significant concern for farmers. According to University of California Agriculture and Natural Resources (UCANR) scientists, roof rats are appearing in considerable numbers this year.  Researchers suggest monitoring fields for rodent activity and using bait stations before the growing season to prevent problems from developing further.

http://agnetwest.com/roof-rat-damage-causing-concern-growers

Valley farmers welcome rainstorms

(KFSN-TV) Reuben Contreras, March 15

Rain in the valley and snow in the Sierra from the last few weeks is adding to the water supply local farmers count on to grow their crops.

…"During the strawberry season if you have too much rain it is going to cause the fruit to rot," said Michael Yang of the UC Cooperative Extension Fresno County. "So during the full harvest, we don't want any rain."

Yang works with smaller growers in Fresno County. He says almost all of them rely on groundwater and wells to grow Asian specialty crops sold at farmer's markets.

http://abc30.com/weather/valley-farmers-welcome-rainstorms/3221598/

Pedestrian Orchards Will Reduce Injuries

(California Ag Today) Jessica Theisman, March 14

California Ag Today recently spoke with Becky Phene with the University of California out of the Kearney ag center. She's working alongside Kevin Day, UC tree fruit advisor in Tulare County, on development of pedestrian orchards.

"My background is irrigation. I got asked to participate in the pedestrian orchard with Kevin because he wanted to demonstrate multiple technologies that would be beneficial not just now, but in the future,” Phene said.

Day has combined his pedestrian orchard with subsurface drip irrigation. The pedestrian orchards are by design kept short so that there is no usage of ladders. Eliminating the usage of ladders can help prevent on the job accidents.

“The pruning lets the tree grow quickly and fill in as quickly as possible in the first couple of years, and then he develops the shape of the canopy and the shape of the leaders,” Phene said.

https://californiaagtoday.com/pedestrian-orchards-will-reduce-injuries/

Whole orchard recycling has promise for new almond plantings

Western Farm Press) Tim Hearden, March 14

When it comes time to push out old almond orchards, grinding them into the ground will improve soil nutrients for the next planting, a University of California Cooperative Extension researcher has concluded after years of studying the practice.

Whole orchard recycling increases soil organic matter and carbon, soil nutrients, and microbial diversity, leading to better productivity for the new trees planted in the old orchard's place, says Brent Holtz, pomology farm advisor in the UCCE office at Stockton, Calif.

http://www.westernfarmpress.com/tree-nuts/whole-orchard-recycling-has-promise-new-almond-plantings

California Almonds Are Back After Four Years of Brutal Drought

(Bloomberg) Alan Bjerga, Donna Cohen and Cindy Hoffman, March 14

After dropping during the drought, the 2017 almond crop rebounded to a record 2.14 billion pounds of shelled nuts. That's more than triple the amount of walnuts, the No. 2 U.S. nut, and more than four times that of pistachios, which are emerging as a serious competitor for California acreage. Almonds are “incredibly versatile,” said Daniel Sumner, an economist at the University of California, Davis. “And California is the best place to grow it. Where else can the weather be hot and dry and perfect, but you also have a system where you can bring water from mountains full of snow?” Almond-picking is also highly mechanized, which attracts farmers concerned about migrant-worker labor shortages, and its long history in the state creates a level of expertise competitors can't match, he said.

https://www.bloomberg.com/graphics/2018-thirst-for-almonds

International delegation will be looking for trade, research partners

(Sacramento Business Journal) Mark Anderson, March 13

Subscription only. Article based on ANR news release http://ucanr.edu/News/?blogpost=26598&blogasset=44547.

https://www.bizjournals.com/sacramento/news/2018/03/13/international-delegation-will-be-looking-for-trade.html

The What, When, and Why of Using Microbials on Your Farm

(Growing Produce) Robin Siktberg, March 12

Why should microbial controls be a part of an Integrated Pest Management (IPM) program? The first, and main one, is that research shows that they work. Many microbial products in the market today are backed by trial data that shows when used correctly, microbials can be a very effective way to improve plant health, suppress pest pressure, and improve yields.

“Microbials are very powerful tools,” says Dr. Surendra Dara, Strawberry and Vegetable Crops Advisor at University of California Cooperative Extension. “They have a number of benefits for the grower. Microbial control agents are either very specific (as with some viruses or Bt) or can attack a broad range of pests (as with fungi). They can have multiple modes of action, which prevents development of pest resistance. They are very safe for workers and consumers, and are a sustainable control option.”

http://www.growingproduce.com/events/biocontrols-conference/the-what-when-and-why-of-using-microbials/

Roof rats are invading California farms and destroying fruit, nuts and irrigation lines

(Fresno Bee) Robert Rodriguez, March 12

Roof rats, a common problem for city dwellers, are migrating to California farms and nibbling on everything from avocados to irrigation tubing.

University of California scientists say last year's wet weather created a perfect environment for the quick-breeding rats to flourish.

…"Rodents are everywhere and they are opportunists," said Rachel Long, a University of California, cooperative extension adviser. "They move in from their surrounding urban habitats to take advantage of any food source they can find. And once that food source disappears they search for food elsewhere."

http://www.fresnobee.com/news/business/agriculture/article204696074.html

Do Backyard Chickens Need More Rules?

(KQED) Menaka Williams, March 12

…It was easy to welcome another chicken, partly because Oakland's local policies for keeping poultry aren't that restrictive. Roosters aren't allowed, and hens just have to be housed at least 20 feet from any house. That's it. No rules about the number of birds, their coops, slaughter or care. Bare-bones local laws around chickens are really common, says Catherine Brinkley, a veterinarian and urban planner at the University of California, Davis.

Brinkley says these policies tend to focus on limiting nuisances, like early morning cock-a-doodle-dos or eyesore coops — leaving a gap in codes when it comes to health and safety. "They're not at all focused on public health considerations, like [requiring] training for new owners in washing hands and selling eggs, nor do they think about if somebody is hoarding chickens or other awful things that, quite honestly, happen with animal welfare," Brinkley says.

https://www.kqed.org/bayareabites/125604/do-backyard-chickens-need-more-rules

OPINION Farm Bill must include climate change adaptation

(Redding Record Searchlight) Marty Walters, March 9

A new study published by a group of University of California researchers led by Tapan Pathak, published in the journal Agronomy, provides a whole new level of analysis in the ways that California's agriculture will change and be stressed by our changing climate, and it recommends ways to reduce some of the negative effects.

https://www.redding.com/story/opinion/readers/2018/03/08/farm-bill-must-include-climate-change-adaptation/408262002/

OPINION The self-inflicted economic damage to American agriculture

(The Hill) Daniel Sumner, March 9

Agriculture is so fully integrated into world markets that consumers everywhere take for granted that ripe peaches will be available to everyone, everywhere in January, while Zinfandel, Shiraz and Prosecco are universally available. Likewise farmers all over the world use tractors made in America, and tomato processors use equipment from Italy.

http://thehill.com/opinion/energy-environment/377591-the-self-inflicted-economic-damage-to-american-agricultural

Study indicates that climate change will wreak havoc on California agriculture

(LA Times) Michael Hiltzak, March 9

The California we know is the breadbasket of the nation, producing more than two-thirds of the country's fruits and nuts, including almonds, pistachios, oranges, apricots, nectarines and prunes, and more than a third of its vegetables, including artichokes, broccoli, spinach and carrots. It's all valued at more than $50 billion a year.

http://www.latimes.com/business/hiltzik/la-fi-hiltzik-climate-agriculture-20180309-story.html

Precise gene technology impacts GMO debate

 (Capital Press) Tim Hearden, March 8

Precise gene-editing technology is bringing the debate over genetically modified crops into a new era, researchers and experts say.

While the use of GMOs has ignited a high-pitched public debate for years, the ethical and socioeconomic debate over the newer techniques “seems to be keeping pace with the science,” observes Neil McRoberts, a University of California-Davis associate professor and plant pathologist.

http://www.capitalpress.com/SpecialSections/Seed/20180308/precise-gene-technology-impacts-gmo-debate

Trade war could spark food fight, California growers fear

(LA Times) Geoffrey Mohan, March 2

Steel and aluminum may be the intended quarry of a trade war that President Trump has said would be "good" for the U.S. economy, but the casualties of the conflict could be food, agricultural economists warn.

No state has more at stake than California, which leads the country in agricultural revenue. Farmers and ranchers in the Golden State are twice as dependent on foreign trade as the country as a whole. World leaders also likely know that Trump enjoyed deep support in rural, agricultural areas, including much of the Central Valley, said Dan Sumner, an economist who directs the Agricultural Issues Center at UC Davis.

http://www.latimes.com/business/la-fi-trade-war-agriculture-20180302-story.html

Posted on Tuesday, April 3, 2018 at 6:38 PM

'Real' Christmas trees support farmers and the environment

Most real Christmas trees sold in California are raised on farms, creating jobs and boosting the economies in rural areas. 

That's just one reason UC Cooperative Extension advisor Lynn Wunderlich encourages the use of fresh-cut Christmas trees during the holiday season.

Visiting choose-and-cut Christmas tree farms is a fun family tradition that supports farmers, local economies and the environment. (Photo: USDA)

"This is an age-old debate," Wunderlich said. The American Christmas Tree Association says that PVC used in artificial trees is recyclable. If a household decorates with the same artificial tree for at least four years, the carbon footprint will be smaller than that of a household that purchases a real tree every year.

But the impact goes deeper. Wunderlich points out that artificial trees are mainly made in Asia. They have to travel a great distance to the U.S. compared to an American-farmed tree, eating up natural resources during transport. "Buy American," Wunderlich says.

Besides, there are the transcendent benefits of real Christmas trees. Farmed trees provide open space and wildlife habitat during the off-season, and fill the home with a natural pine scent during holidays.

Their role in sequestering carbon is aided by a production practice used by many farmers, called "stump culture."

"They use the same root system to regrow another tree, so the trees are regenerated," Wunderlich said. "Trees are replanted regularly in other farming culture. Christmas trees sequester carbon. Nearly a ton of carbon per acre of trees, depending on species and number of trees planted on the land."

While artificial trees end up landfills or energy-intense recycling plants, live trees are biodegradable. They can be naturally recycled by composting or shredded to use as mulch. Many communities offer curb-side pickup in the days after Christmas.

While farmed trees can be purchased on tree lots, home improvement stores, even grocery and drug stores, Wunderlich says a trip to a choose-and-cut tree farm is an enchanting family outing. Many Christmas tree farmers also provide food, crafts, activities and visits with Santa.

“Families can visit the farmer year after year as their children grow, so that's part of the experience,” Wunderlich said.

Resources:

The California Christmas Tree Association maintains a directory of choose-and-cut Christmas tree farms around state.

Some National Forests allow Christmas tree cutting with a permit. Read more here.

 

Posted on Monday, December 4, 2017 at 9:25 AM

Winegrape growers concerned about drought

Foothill vineyards have water worries.
Winegrape growers who rely on groundwater are worried about the dismal rainy season so far, reported Ed Joyce on Capital Public Radio. He quoted the National Oceanic and Atmospheric Administration as saying that, barring "epic rain and snowfall," the drought will likely continue through the spring and summer.

Joyce spoke to a a dismayed winemaker, a worried vineyard manager and he gathered background for his four-minute story by interviewing Lynn Wunderlich, UC Cooperative Extension farm advisor for El Dorado, Amador, Calaveras and Tuolumne counties.

"There's a lot of concern out there amongst growers that I work with in the four counties in the Central Sierra," Wunderlich said. "Generally in the foothills we have a shorter depth in the soil from the surface to the bedrock, so that all impacts the available water that a grower has."

Because of the drought, Wunderlich said some growers are extending their wells or digging new wells to increase groundwater supply.

"I even had an email from a small grape grower who said he's collected rainwater this season," Wunderlich said. "So people are getting quite creative in their attempts to conserve water, knowing that we're going to have potentially a tough season."

Posted on Friday, January 23, 2015 at 3:17 PM
Tags: drought (162), Lynn Wunderlich (5), winegrapes (6)

Christmas tree farmers growing Nordmann fir asked to look out for new pest

Nordmann fir Christmas trees are becoming popular on California farms because they have rich color, excellent structure, good needle retention and strong branches for ornament display.
California Christmas tree growers who have planted Nordmann or Turkish fir on their farms should be watchful for a new pest that recently made its way to the United States, said Lynn Wunderlich, UC Cooperative Extension advisor who works with Christmas tree growers in the Central Sierra.

Some research plantings of Nordmann fir at Washington State University and one Washington farmer's field have been invaded by an adelgid that appears to be closely related to silver fir woolly adelgids, a common pest on Nordmann fir in Europe. Adelgids (pronounced uh-DEL-gids) are certain types of aphids that feed on conifers.

“Fortunately, adelgids attacking Nordmann fir haven't been reported in California, but we want our growers to be aware of them and to let me know if they see symptoms on Nordmann or Turkish fir,” Wunderlich said.

White, cottony masses on tree branches and twisted, curled and discolored needles are signs of adelgid infestation.

In California, growers produce Christmas trees valued at about $6 million per year, according to the USDA's National Agricultural Statistics Service.

Nordmann fir has become a popular species for Christmas tree growers in the Sierra foothills. Native of the Caucasus in Turkey and the Republic of Georgia, Nordmanns have rich color, excellent structure, good needle retention and strong branches for ornament display. Still more advantageous is their resistance to pests and diseases that plague other popular tree species, like white and red fir.

“Because of Nordmann fir, we've been able to plant Christmas trees in areas where we could not grow white fir due to Phytophthora,” Wunderlich said. “Consumers are realizing they like it and are asking for the species.”

If the adelgid makes its way to California, Wunderlich is prepared to work with local growers to devise a control strategy based on the results of research her Cooperative Extension counterparts in Washington are conducting on the pest.

California Christmas tree farmers who suspect their trees have been infested with the silver fir woolly adelgid are encouraged to contact Wunderlich at (530) 621-5505, lrwunderlich@ucanr.edu.

An initiative to maintain and enhance sustainable natural ecosystems security is part of the UC Division of Agriculture and Natural Resources Strategic Vision 2025.

Posted on Friday, December 5, 2014 at 8:16 AM

Cutting down a Christmas tree is sustainable family fun

Securing a Christmas tree for the ride home. (Photo: Susie Kocher)

Every year, the day after Thanksgiving, Susie Kocher bundles up her children, gathers the extended family and hikes into the Lake Tahoe Basin forest to find a Christmas tree.

“It’s my favorite part of the season,” Kocher said. “Having the fresh, living thing in the house really symbolizes the holiday. You can’t do it with a fake tree.”

Kocher, a forester and the natural resources advisor for UC Cooperative Extension in the Central Sierra, lives and works in Lake Tahoe. The Lake Tahoe Basin Management District is one of nine national forests in California, all of them in the northern part of the state, where the U.S. Forest Service allows Christmas tree cutting with a $10 permit.

Though some people mourn the death of any tree, Kocher says careful selection and removal of Christmas trees is an enchanting family tradition that enriches forest health.

“We have a lot of small trees on public lands because of fire suppression,” Kocher said. “They’re all competing with one another and many will ultimately die. A smart harvest of Christmas trees can improve the forest by helping with thinning.”

People with permits to cut down Christmas trees in national forests must follow strict guidelines. The trees must be within 10 feet of another living tree, the base of the trunk cannot be more than six inches wide and it must be cut within six inches of the ground. Some national forests limit the harvest to certain tree species.

Despite committing to these guidelines when obtaining a permit, Kocher said she has seen some Christmas tree harvesters make ill-advised choices.

“Some are too lazy to find a good tree and will cut the top off a large tree,” Kocher said. “You can be driving around and see what looks like a poor old Dr. Suess tree, which is what grows from the ugly remnant left behind in the forest.”

Such irresponsible Christmas tree cutting has led some forests to discontinue Christmas tree harvesting for personal use.

Kelly Hooten, information specialist with the Sierra National Forest, said the organization stopped issuing Christmas tree cutting permits because people would tend to cut down only healthy, strong trees.

“It’s really the sickly, Charlie Brown trees that we would prefer to thin in our forest,” Hooten said.

The El Dorado National Forest does not allow Christmas tree cutting because there are more than 30 Christmas tree farms in the vicinity where visitors can choose and cut down their own trees.

“Allowing Christmas tree cutting in forests would hurt these farmers economically,” said Lynn Wunderlich, UCCE advisor in the Central Sierra office. Many Christmas tree farmers also provide food, crafts, activities and visits with Santa.

“Families can visit the farmer year after year as their children grow, so that’s part of the experience,” Wunderlich said.

There has been ongoing debate about whether a fake tree or real tree is more environmentally friendly, but for Kocher, there is no question.

“Fresh real trees are a renewable resource, fake trees are not,” she said. “It’s an agricultural product. You can contribute to a local farmers’ income or you can help thin the forest. Picking and bringing home a fresh tree, decorating it and smelling it defines the season for me. Without it, I don’t think it would feel like Christmas.”

Posted on Thursday, November 14, 2013 at 9:17 AM
 
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