https://www.arbormark.org/blog daily 0.75 2024-01-21 https://www.arbormark.org/blog/spray-for-pests-and-disease-by-using-environmentally-responsible-products monthly 0.5 2020-11-18 https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1603858337238-HDR3LKW257XDGVAI6NES/IMG_0458.jpg Blog - Using Environmentally Responsible Products When Spraying for Pests and Disease https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1603858359076-OMUZAVPN7ZXIZF5NZJQU/IMG_0450.jpg Blog - Using Environmentally Responsible Products When Spraying for Pests and Disease https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1605310417878-NVJVKTCX4V37TGUM1ND1/IPM+Spray.PNG Blog - Using Environmentally Responsible Products When Spraying for Pests and Disease A rough summary of the sustainable spray options https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1605195248028-63E1PUXPZ35OR9V9G4OO/Spiracles+diagram.jpg Blog - Using Environmentally Responsible Products When Spraying for Pests and Disease Spiracles found on a sharpshooter https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1604957766686-WJHHS4IRCVU0UTS5SQKF/IMG_0325.jpg Blog - Using Environmentally Responsible Products When Spraying for Pests and Disease Citrus fruit from citrus tree showing signs of whitefly https://www.arbormark.org/blog/palms-are-not-trees monthly 0.5 2023-12-06 https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1602626263429-A2CTXA4THHJQL442JQCS/IMG_0647.jpg Blog - Palms in Comparison to Trees Figure 1: unknown stump found in a planter at San Diego Botanical Garden; image taken by an iPhone 8. https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1603577925295-TMLYN7GRAYXCWAVU8EX4/image-asset.jpeg Blog - Palms in Comparison to Trees - Figure 2. Fronds of a Washington Fan Palm (Washingtonia filifera) https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1603609294769-QY2X4U9FZ3YVNLI9U1D1/Capture.PNG Blog - Palms in Comparison to Trees - Make it stand out Figure 4. Cross section of palm stump showing different tissue layers https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1603653916365-ZDJ1ASUZ2QEMBQ1RGAY5/monocot+vs+dicot+cross+section.PNG Blog - Palms in Comparison to Trees Figure 3. A diagram displaying the basic anatomical difference between dicot and monocot stems via cross section. https://www.arbormark.org/blog/mighty-mite-damage monthly 0.5 2020-09-23 https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1599797992975-XI5GTTIU99NR8Y2J5C4I/Southern_red_mite_on_cherry_laurel%2C_female_and_male-J.-Davidson-3878-30-slide-250x165.jpg Blog - Two Spotted-Spider Mite - Mite castings remain on plant surface. Image by University of Maryland Extension. https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1599773333057-YES0ETWVSL82VI3U3NLK/miteuc.jpg Blog - Two Spotted-Spider Mite - Stippling on leaves are a sign of mite feeding. Image by University of California Cooperative Extension. Click on image for more info. https://www.arbormark.org/blog/mealybugsandscale monthly 0.5 2020-10-06 https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1601795699910-2U7NQKW0BKI953VPBWS9/image.jpg Blog - Scale Insects - What to Look For Scale infestation signs: circular flat bodies (usually females or nymph stages), winged insects under leaves (this is usually the male), crawlers (nymph stages) Scale infestation symptoms: honeydew drippings (indicator of soft scale), black sooty mold, poor growth, yellow regions on the surface of leaves, branch dieback, white fizzy material (indicator of whitefly or mealybug) https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1601943270638-C8RPAF9AS2MMJB404XOE/whitefly_LI.jpg Blog - Scale Insects - Here is an abundance of whitefly found on our client’s citrus tree. The “stippling” (see pointed arrow) is caused by the feeding, Notice the winged adult compared to the younger life stages (the small white bodies covered in white material). These are the same species of whitefly although their appearance is vastly different. Also, check out the ants! The ants quickly became alert as I held the leaf. Their main priority was to protect their precious whitefly from me: a potential threat. https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1600579181562-RX8DN3U3R6J22DTM93IZ/IMG_0362+%281%29.jpg Blog - Scale Insects https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1600835843841-B14RS65RQD1GO5QF8TQ7/mealybug.jpg Blog - Scale Insects https://www.arbormark.org/blog/cultural-practices-caring-for-your-trees-and-plants monthly 0.5 2021-03-05 https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1614957540783-OVXJ9K9KU5DIYWTPRCCU/caterpillars%2Bon%2Bleaf.jpg Blog - Cultural Practices: Caring for your Trees and Plants - Pest and Diseases are dependent on their hosts and environment. As a grower, you manipulate the soil, humidity, water, nutrients and many other attributes in efforts to favor the growth of your plant. You can also modify the plant’s environment into a habitat that is less hospitable to most horticultural pests and disease. Quick Tips: aphids and other leaf-sucking pests like tender young leaves. Fertilizing your plant will cause these attractive young leaves to emerge soft bodied insects can be sprayed with a heavy stream of water for a quick removal organic pesticides are not always “better” selective pesticides are environmentally friendly and more effective than broad-spectrum pesticides spider mites like drought stressed plants sometimes it’s too late to treat with chemical efforts, use a sticky trap to collect adults. It’s also so satisfying seeing their bodies stuck to the paper >;) make the habitat hospitable to other organisms that feed or kill pests and disease REACH OUT!! I can help you identify what’s going on in your garden, tree or house plant. Correct identification is key to proper pest and disease management. https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1614710699169-23YM49BSCVI4I0K9URHN/IMG_0583.jpg Blog - Cultural Practices: Caring for your Trees and Plants Photo taken at the Los Angeles Arboretum, Arcadia CA. https://www.arbormark.org/about-us daily 0.75 2022-11-02 https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1614627075483-T6EVFSCT5GO43JPZST6N/IMG_1387.jpg about us - Mark Tan An ISA-certified arborist since 2017, Mark loves every aspect of tree care. His broad scope of experience includes felling and dragging brush in Iowa, laboratory research at UC Riverside, utility assessment throughout the San Gabriel Valley, and PSHB monitoring in the city of Claremont. Mark is currently completing his graduate studies at Cal Poly Pomona - looking for ways to manage the Polyphagous Shot Hole Borer (Euwallacea whitfordiodendrus). Ashlyn Pouvaranukoah Ashlyn is a licensed Pest Control Adviser (PCA) and ISA-certified arborist with a passion for preserving plant health and protecting the environment. As a student at Cal Poly Pomona, Ashlyn was a laboratory assistant, worked with the Natural Resource Conservation Service (NRCS), and conducted Asian Citrus Psyllid (ACP) outreach - all while receiving Dean’s List honors. https://www.arbormark.org/what-we-do daily 0.75 2022-11-02 https://www.arbormark.org/home daily 1.0 2024-01-21 https://images.squarespace-cdn.com/content/v1/5f2d8340c46521108f0358c7/1596833940359-J2ESOWY4TEMZNF2O8GBG/IMG_0159.JPEG Home - “There are many beetles inside of me, farming a fungus. I am ill. Why didn’t anyone do anything?” -A sad sycamore infested with Invasive Shot Hole Borer (ISHB) https://www.arbormark.org/contact daily 0.75 2020-08-20