- Author: Sonia Rios
The macadamia is native to Australia and has been grown in California continuously since 1879 (Arpaia 1994). In addition to the commercial growers, macadamias make excellent back yard trees, are beautiful as landscaping, and can be grown in tubs on your patio. There will be a great opportunity for all that are interested to learn about growing macadamia nuts in California.
The University of California Cooperative Extension in conjunction with the California Macadamia Society and the Gold Crown Macadamia Association will hold their Annual Field Day on Saturday 24 September 2016, 8:45 A.M. to 1:30 P.M at the home of Jim and Jane Zeimantz, 3410 Alta Vista Drive, Fallbrook, California. There will be classes on topics relevant to the current macadamia industry, with plenty of opportunities for you to ask questions, both general in nature and about the specifics of your operations. We will also be serving a continental breakfast and a delicious lunch. Please plan to join us for a fun and information filled day.
Cost: $20.00 per person with pre-registration, $25.00 at the event. That includes a continental breakfast and delicious lunch.
Contact Person: Jim Russell, (760) 728-8081 e-mail russellfarms@Roadrunner.com
Visit www.macnuts.org/fieldday.htm for a registration form.
The Objectives of the California Macadamia Society are:
To furnish authoritative and timely information on Macadamia culture.
To assist growers with harvesting and marketing data.
To advise nurserymen on varieties and propagation.
To encourage the University to assist the industry with research.
To formulate policies, where indicated, for presentation to the state legislature.
The Objectives of the California Macadamia Association are:
To assure a reliable market to our growers.
To provide the highest return to our growers for nuts delivered.
To explore new and developing markets for macadamia nuts.
From I-5 take exit 54a (east) onto Ca-76, Pala Road. Go 13.5 miles and turn left (north) onto Via Monserate. Go 1.3 miles and turn right on Alta Vista Drive. Go 1 mile to 3410 Alta Vista Drive, on the right.
From I-15 take exit 46 (west) onto Ca-76, Pala Road. Go 3.4 miles and turn right (north) onto Via Monserate. Go 1.3 miles and turn right on Alta Vista Drive. Go 1 mile to 3410 Alta Vista Drive, on the right.
- Author: Sonia Rios
6 weekly classes and a Saturday Field Trip to the UC Cooperative Extension High Density Trial
2:00 – 4:00 pm, Wednesday afternoons located at the San Diego County Farm Bureau, 1670 E. Valley Parkway, Escondido CA 92027
Instructor: Gary Bender Ph,D., Farm Advisor Emeritus, UC Cooperative Extension
Classes Start April 27, 2016
Cost is $105.00 per person, which includes Dr. Bender's Avocado Production in California Books 1 & 2, ANR Publication IPM for Avocados, and The International Avocado Quality pocketbook
NEW! Schedule of Classes: (No refunds for classes missed)
- April 27, Introduction to Agriculture in San Diego County, History of Avocado Production in California
- May 4, Botany, Flowering, Varieties, Harvest Dates, Rootstocks
- May 11, Irrigation Systems, Irrigation Scheduling, Salinity Management
- May 18, Fertilization, Organic Production
- June 1, Canopy Management, Tree Spacing, disease and root rot control
- June 8, Avocado Insects and Mites, Polyphagour Shothole Borer and Fusarium Disease Speakers Mark Hoddel Ph.D., UCCE Entomology Specialist and Akif Eskalen Ph.D., UCCE Subtropical Plant Pathologist
- June 11, 9:00 AM, Saturday Field Trip to High Density Trial and a Commercial Grove, Valley Center CA Speaker Niamh Quinn UCCE Area Vertebrate Pest Advisor, demonstrating trap and bait station setting techniques.
To register follow click on the link http://ucanr.edu/survey/survey.cfm?surveynumber=17727
Please Contact Quang Tong for questions at email@example.com or 858-534-0947 for regeestration questions
Please contact Subtropical Horticulture Farm Advisor Sonia Rios for any other questions regarding the class or material being covered at firstname.lastname@example.org or 951-683-6491 ext. 224
We are creatures of habit and when we see the effects of a treatment, we can often persist in seeing the same or similar symptoms and assuming the cause is the same. In a recent case, a newly planted ‘Pixie' orchard, planted in August had gone into an old ‘Valencia' ground. The trees went through an adjustment period, but still didn't look sprightly in the fall. The grower applied a hand application of urea on the rootball that within 10 days had caused the trees to go into a salt swoon. Meaning, they got too much fertilizer that burned them. The grower seeing the effect, immediately started the sprinklers, but the damage was done. Several months later the trees had either died or were still lingering, but hanging in there. The trees were still coming out of winter, but the trees hadn't perked up. It was a dry winter and some of the yellowing was due to underirrigation, that overall yellowing from lack of nitrogen and the leaves were curled. But the assumption was still that the trees were recovering from the salt burn from the urea.
Looking more closely at the trees, something else was odd about some of the trees that were continuing to die. The leaves suddenly wilted. Getting down on hands and knees and digging around the roots, there were few roots and ………………………….a tunnel. A gopher had been at this tree and the lack of roots were probably due to Phytophthora root rot. Looking around there were some old ‘Valencias' that had been hit by gophers and there were gophers mounds and runs all over the place.
So, young trees planted in the heat of the summer into root rot ground with gophers waiting in anticipation that had been salt burned in a year with little rainfall. A lot of causes for trees that generally weren't happy – triste, as they say in French.
So what are the lessons here? Avoid old citrus ground when planting with citrus, and if you can't make sure, don't plant in a stressful period. Phytophthora loves stressed trees and adding lack of rainfall an gophers and salt, just heightens the stress. Make sure to get the irrigation right. Don't irrigate them to the schedule of the older trees and start them off on one of the phosphite materials.
Wilted, yellow leaves from lack of water and Phytophthora
Gopher chewing on stem
Gopher run and lack of roots from Phytopthora and gopher
Gopher mounds in planting area
Older Valencias dead and dying from Phytophthora and gophers
Problem: There was a Valencia farmer in Ojai, farming on a rocky loam. More rocky than loam, on a 10 % slope, where he had been spraying the weeds down, the soil had gradually washed away and all he had left was scattered cobbles.
Solution: He planted a winter cover crop to protect the soil from erosion. He weed whipped it three times a year because that's all he could afford.
Result: After two years he had stopped the erosion, and there was actually a little duff layer forming in the orchard from the decomposing ground cover.
Problem: But now that wonderful cover crop and the cover it provided had attracted gophers that were chewing on the trees and because of inattention had killed a few of them. He couldn't trap fast enough.
Solution: He brought in a ‘Jack Russell' terrier that did a marvelous job at keeping the beasts down.
Problem: About the same time he noticed that he was getting gobs of snails that were getting into the trees. Even though he had lifted the skirts and painted copper on the trunks, they were still getting into the trees. He couldn't keep up with the winter weeds.
Solution: He brought in weeder geese to help with the ground cover and chickens to help with the snails and they worked.
Problem: Now the terrier is distracted by the fowl and is killing the chicks and goslings, as well as the gophers. In fact, he would prefer chasing the fowlings to going after gophers.
Solution: He tied a tether ball around the terrier's neck which slowed it down enough so that the young ones could get away.
Problem: Also with the introduction of birds, he also brought in coyotes which killed the larger birds.
Solution: He brought in a ‘Queensland Heeler' which is a bred that is noted for killing dingos in Australia. They are short-legged, barrel chested dogs that roll over on their back and pretend to be dead and when the coyote comes sniffing around, it grabs the coyote's neck and kills it.
Problem: What's next in this cause and effect chain of events?
This is a true story, but in today's world because of Food Safety and Good Agricultural Practices Certification would not happen with all these animals in the orchard, but something like it happens every time we overturn the flow of events. This is not the only scenario that is played out in agriculture. But hey, that's what a good grower is doing, managing a somewhat chaotic chain of events.
I am frequently asked if I can recommend a book on Soils. And yes, I can. It is Soils: An Introduction by Michael Singer and Donald Munns. The sixth edition recently came out so there's a lot of older used copies floating around on the wed for under $10. This book takes a different tack on describing soils. Instead of tacking the tack of a chapter on Nitrogen another on Calcium etc., it weaves a story of how all the parts are related.