Fungus: Raffaelea lauricola Hosts: avocado, camphor (Lauraceae family) Distribution: Florida, Georgia, and South Carolina Symptoms: Infects the sapwood, restricting the flow of water and causing the leaves to wilt. Wilted trees may exhibit small dowels or “toothpicks” of sawdust protruding from the stem produced by the ambrosia beetles as they bore into the wood Vector: …
July 2012 archive
Jul 02
Pest of the Month May 2012 – Asian Long-Horned Beetle (Pest Alert)
Hosts: hardwood trees (primarily genera Acer, Populus, Salix, and Ulmus, but also Aesculus, Albizia, Betula, Cercidiphyllum, Fraxinus, Platanus, Prunus, and Sorbus). Acer is the most common. Distribution: Native to China and Korea. First discovered in the U.S.in 1996. Has been found in New York, Calfornia, Washington State, Illinois, and New Jersey. Symptoms: Dead trees due …
Jul 02
Pest of the Month April 2012 – Hibiscus Erineum Mite
Hosts: Hibiscus spp., particularly the Chinese red hibiscus Distribution: Hawaii- all of the major islands; Tonga, Fiji, and other Pacific areas; Australia Damage: (1) Unsightly leaf, stem, and twig galls Management: (1) Biological control – predatory mites (2) Cultural control – consider replacing with another type of hibiscus less susceptible or with another type of plant. (3) …
Jul 02
Pest of the Month March 2012 – South American Palm Weevil
Hosts: Coconut, sago palm, Canary Island date palm, date palm, sugarcane, papaya, citrus, mango, guava, Fosberg breadfruit, banana, avocado, cocoa, and many others Distribution: South America, Mexico, Caribbean. It has been found in California and Texas but does not appear to be well-established. Description: Large, black weevil 1.3” long and 0.6” wide. Shiny when it …
Jul 02
Pest of the Month February 2012 – Fiorinia phantasma
Hosts: Most commonly palms (coconut, Manila, areca, foxtail, and bottle palms) as well as kamani, shower tree, Ficus benjamina, maio, Madagascar olive, hala, mock orange, wax leaf privet, and traveler’s palm Distribution: Philippines, Oahu, and Kihei/Wailea area of Maui Description: Armored scale. Adult females inconsistently show red stripes the width of the scale covering with …