- Author: Janet Hartin
Dear Community Members and UCCE Partners Throughout San Bernardino County,
I hope this finds all of you and your families well and staying healthy. Please note that, due to COVID-19 concerns, all UCCE San Bernardino County face-to-face program activities, classes, and other events scheduled through April 30, 2020 have been postponed, canceled, or converted to zoom meetings or other distance learning formats. However, our academics, program managers, and community educators remain on the job and available to assist you via phone and email. Volunteer Master Gardeners continue to address your home horticulture inquiries through their telephone (909)387-2182 and email helplines (mgsanbern@ucanr.edu).
Thank you for your understanding and your flexibility as we continue to provide research-based information in new and novel formats during this difficult time. Follow us on twitter (@MGPSanBern and @UCANRJHartin) and visit our website http://cesanbernardino.ucanr.edu/ for more updates including our Fiscal Year 2019/2020 Annual Report.
Have you ever thought about the parallel between preventive health care for people and integrated pest management (IPM) for plants? Both implement specific measures that reduce the risk of exposure to disease-causing organisms. According to experts, implementing preventive measures such as ‘physical distancing' (I prefer that term over ‘social distancing'), washing our hands thoroughly and regularly, covering our mouths when we cough, not touching our face, etc. greatly reduce our chance of contracting COVID-19.
In the plant world, IPM practices and principles that promote healthy plants greatly reduce the chance of damage from diseases and other pests. With a little extra time on your hands, implement these IPM practices for a healthier garden and landscape: match plants to their preferred climates and microclimates; select disease resistant plant varieties; provide well drained, healthy soil amended with compost and other organic products when appropriate; apply the right amount of water and nutrients at the right time, etc.
A ‘silver lining' of adopting these practices is that the need for pesticides is greatly reduced which keep our waterways clean, and preserves (and even enhances) populations of beneficial microbes, pollinators and wildlife.
Here are some other ‘silver linings' that I want to share with you in hopes they will provide some inspiration for you to ‘landscape greener' during what I hope is some extra downtime.
• Fewer vehicles on the roads has temporarily improved our air quality. With some extra time on our hands, we can all contribute to a more permanent solution by planting a tree or two! Trees store carbon dioxide that reduces pollution, cool urban heat islands, provide shade, reduce interior energy use and costs, provide habitat, connect us with nature, and beautify our neighborhoods. 
• Improve the health of your landscape trees by loosening tight tree stakes and ties and adjusting sprinklers to keep tree trunks dry. Your trees depend on you! 
• Stay in touch with family, friends, and even co-workers at a distance via 'walking chats' that improve our physical health and even reduce stress by increasing the “feel good” hormone serotonin. Keep it up and it just might earn you a place in the “100 mile a month walking club.”
• With more time to catch up on reading, consider downloading free UC ANR publications such as: ‘Sustainable Landscaping in California' anrcatalog.ucanr.edu/pdf/8504.pdf that provides tips on water savings, use of soil amendments and mulch, reducing pesticide use, and more.
• More time on our hands provides an opportunity to stock our ‘little free library' with vegetable and flower seeds for our neighbors. Don't have an official ‘library'? Build your own ‘seed sharing box!' Or, donate seeds and plants to a local food bank or other non-profit.
I hope that you and your loved ones stay well and healthy! We will get through this together.
- Author: Janet Hartin
Congratulations to our 52 San Bernardino County University of California Cooperative Extension (UCCE) Master Gardener graduates from all corners of the county! Please help Master Gardener Coordinator Maggie O'Neill, previously certified Master Gardeners and myself welcome these new volunteers who completed their 18-week training course and graduated on February 18, 2020 in Loma Linda.
What does it take to become a UCCE Master Gardener? Dedication, passion, a strong desire to help local residents and communities garden more sustainably. Each graduate completed an 18-week training session with weekly classes on sustainable landscaping, growing vegetables and fruits in home, school, and community gardens, pest management, and building healthy communities. Course requirements included passing a midterm and final exam and presenting a class (project to peers in a group setting. Most importantly of all, graduates each made a pledge to volunteer at least 50 hours of their own time over a one year period to help residents of San Bernardino County garden smarter.
Thanks to the continued dedication of over 150 previously trained Master Gardeners, San Bernardino County now has the talents of over 200 knowledgeable Master Gardener volunteer who you will very likely meet at local events and activities from Chino Hills to Yucaipa as well as in desert and mountain communities alone or in partnership with over 75 collaborating agencies, cities, schools, and county departments.
Since a picture can paint 1,000 words, we hope you enjoy living vicariously through a few graduation photos! Fiends and family members alike enjoyed an evening of celebration in honor of their Superstars who they are rightfully very proud of!
Thank you to each and every one of our new graduates! You helped UC Cooperative Extension in San Bernardino County reach over 30,000 county residents each year garden more sustainably through public workshops and classes, information booths,Farmers Markets, telephone and email helplines, develop school and community gardens, and many other activities throughout San Bernardino County communities.
Are you interested in becoming a UCCE Master Gardener? The next 18-week class will be held at the Chino Basin Water Conservation District in Montclair on Saturday mornings starting in late Spring 2020. Please contact Master Gardener Coordinator Maggie O'Neill at magoneill@ucanr.edu for a link to the online application. Residents of San Bernardino County over the age of 18 are eligible to apply. No formal college degree is required. However, Department of Justice background clearance is required by the University of California prior to participating in any volunteer activities.
Congratulations graduates!
- Author: Janet Hartin
The Goldspotted Oak Borer (GSOB) (Agrilus auroguttatus) continues to kill native oaks in several areas of Southern California. Susceptible oaks include coast live oak (Quercus agrifolia), canyon live oak (Q. chrysolepis), and California black oak (Q. kelloggii). In many cases, GSOB has damaged or killed mature oaks valued for their beauty, wildlife habitat, and shade. Areas with large numbers of native oaks are particularly at risk. Unfortunately, oaks that are injured over several years from multiple generations of the GSOB often die.
Although GSOB was first identified in San Diego County in 2004 it wasn't until 2008 that oak deaths were linked directly to GSOB. By 2010, GSOB killed over 20,000 oak trees growing in forests, parks, and urban areas in San Diego County. Later infestations occurred in Idlyllwild (2012), Orange County (2014), and Los Angeles County (2015). The three most recent outbreaks have all occurred in San Bernardino County. The first occurred in Oak Glen in 2018 followed by infestations in California black oaks in the Sugarloaf area of Big Bear in August 2019 and in Wrightwood in early November 2019.
The GSOB is native to southeastern Arizona where it is not destructive to otherwise healthy native oaks. This may be due to natural enemies and/or resistant oak species that have co-evolved with GSOB. Damage. Damage occurs from larval feeding on the vascular (water and nutrient conducting tissues) system inside trunks and branches. Infested trees have black stained bark and may ooze sap underneath red bark blisters. Adult beetles leave a distinctive D-shaped exit hole.
Damage from GSOB adults feeding on leaves is not a major concern. Insect Identification. GSOB larvae are about 0.8 inches long, white and legless with two pincher-like spines on the end of their abdomen. Adult GSOB are smaller (about 0.4 inch long) and are mostly black with six gold spots on their forewings. Soft-bodied pupae resemble adults in size and shape and are found in the outer bark from late spring to early summer.
Prevention is important since there are no known control methods once trees become infested with GSOB. Keeping infected firewood onsite is the most effective way to stop its spread. Wood should never be moved offsite since this is the major method by which GSOB is spread. No known natural enemies have been identified and insecticides are not generally effective. Monitoring susceptible trees species and identifying and reporting new infestations early are both important.
If you believe there is an infested oak on your property please submit photos of the entire tree, a close up of a leaf (to confirm the species), and a close up of the surface of the bark on the main trunk. If possible, include a photo of an unsharpened #2 pencil tip next to any visible exit holes since are both around .15 inches wide. https://ucanr.edu/sites/gsobinfo/Help_Monitor/Report_Goldspotted_Oak_Borer_Symptoms/ A team of scientists from UC, California Department of Forestry and Fire Protection, CALFIRE and the U.S. Forest Service and other agencies are working collaboratively to reduce the devastation from this insect and identify effective biological control agents.
- Author: Janet Hartin
With only a few short weeks between Thanksgiving and Christmas and two very similarly looking plants, you may be wondering whether the gift a loved one gave you for Christmas is a Thanksgiving cactus or a Christmas cactus. (Many sold in local nurseries and large box stores this past Christmas season were actually Thanksgiving cactus, pictured below). While both are native to tropical regions of Brazil, host a wide array of flowers ranging from the more traditional pink hues to newer hybrids showing off white, red, yellow, and purple, they have different bloom periods. The Christmas cactus (Schlumbergera bridgesii), blooms about a month after the Thanksgiving cactus (S. truncata). The Christmas cactus also has slightly different projections on its leaves, which are more scalloped and less pointed that the projections on the Thanksgiving cactus.
Is yours still not in flower and not in the holiday spirit? Both species require cool temperatures and longer nights for about a month in advance of their flowering period. Both plants bloom optimally when grown outdoors when cool night temperatures dip`into the 50s and shorter nights reduce daytime light to 10 -12 hours in a 24 hour cycle. They can also be grown indoors in pots if kept in a cool dark area with no light between 5 pm and 8 am. During daytime, they prefer bright, indirect light. Full sun can cause the leaf segments to turn dark red.
Both species require good drainage but, even though they are in the cactus family don't let this fool you! They need adequate moisture - particularly during boom- and cannot make it through long, dry periods without supplemental water. Unlike most houseplants, they prefer to feel snug in their pots, almost to the point of enjoying being slightly pot-bound.
Cheers!
Janet
- Author: Janet Hartin
The University of California Cooperative Extension Master Gardeners of San Bernardino County, along with our other UCCE programs (4-H, Master Food Preserver, and EFNEP), hosted an 'Open House' to ring in some holiday cheer! The fun (and delectable) event was attended by staff from neighboring San Bernardino County offices and a fun time was had by all.
Best wishes for a safe and joyful holiday season! Check our calendar for free half-day classes filled with great pointers on growing and preserving food in home, school, and community gardens and selecting and caring for beautiful, environmentally friendly landscape plants coming up in January! https://mgsb.ucanr.edu
