AAA shares pest information regularly, so that industry professionals and the public can stay informed and help protect Hawaii's trees.
Jun 27
Distribution: North, Central, and South America, Europe, Asia, Oceania, and Africa. Hosts: Dracaena, sago palm, Heliconia, avocado, banana, orchids, palms (dwarf date, Washingtonia, Chamaedorea, queen palm, & Rhapis), Coffea spp., Citrus spp., potato, & ginger Damage: Adult females and immatures feed on sap. Honeydew secretions may lead to black sooty mold, which can result in …
Jun 27
Affects: Any plant, particularly tall-standing, erect plants (like trees and palms) Symptoms include: rapid wilting or collapse of plants or stems in combination with structural damage or carbonization (burning) of the internal stem tissues, premature mass dropping of green fruit, burns or strange scars on plants or organs, roots appear blackened or cooked, interior plant …
Jun 27
Distribution: from South Carolina south to the Florida Keys and west toTexas. Native to Florida. Hosts: Canary date palm, date palm, sabal palm, fishtail palm, coconut, latan palms, royal palm, and Washingtonia spp. Stressed, damaged, pruned, and recently transplanted palms are the most susceptible. Symptoms: General decline of young fronds, older fronds may begin to …
Jun 27
Hosts: Guava, macadamia, mango, and Plumeria Distribution: All of the major Hawaiian islands, Australia, Asia, Africa, North America, South America, and the Pacific Islands Damage: Terminal leaf and flower buds become cupped and distorted, reduction in photosynthesis, corky brown areas between the main veins on the underside of leaves. Management: Biological control through locally occurring …
Jun 27
Hosts: Recorded on 38 genera of plants from 27 plant families and over 100 different species. Common on avocado, breadfruit, citrus, coconut, kamani, Indian banyan, macadamia, mango, palm, paperbark, plumeria, sea grape, and tropical almond. Distribution: Native to Central American and the Caribbean region. First reported in Hawaii in 1978 and is now present on …
Jun 27
Hosts: Fabaceae, Malvaceae, Annonaceae, Solanaceae Families – soursop, castor bean, orchid tree, awikiwiki, coral tree (E. crista-galli), Indian coral tree, wiliwili, red hibiscus, ulu, paper mullberry, white sapote, a’e (soapberry), akia, royal palm, kapok, croton, guava, angel’s trumpet Distribution: Southern U.S., Mexico to Ecuador, West Indies, and Hawaii. Symptoms: Leaf stippling to yellowing to bleaching …
Jun 27
Pathogens: Phytophthora palmivora and Thielaviopsis paradoxa (a.k.a. Chalara paradoxa – see Pest of the Month February 2009 – Stem Bleeding of Coconut) Hosts: Fishtail palms, pineapple, coconut, Dracaena fragrans, Ficus spp., Phoenix spp., Rhapis sp., royal palm, cabbage palm, sugarcane, queen palm, Manila palm, Washingtonia spp., aglaonema, Syngonium podophyllum Distribution: California, Florida, Arizona, Hawaii, and …
Jun 27
Hosts: 24 species of palms in 14 genera, including most of the common landscape palms found in California Distribution: Asia, Africa, Middle East, Europe, Australia, Samoa, Papua New Guinea, Solomon Islands, Aruba, and U.S. – Laguna Beach, Orange County Symptoms: Larval mines and frass in leaf based in the central growing point of the palm, …
Jun 27
Cephaleuros spp. Hosts: Guava, magnolia, coffee, avocado, mango, breadfruit, coconut, cacao, citrus, and others Distribution: Tropical and subtropical climates and on all continents and probably all islands between 33°N and 33°S of the equator where temperature and humidity are suitable for growth. Symptoms: For C. virescens, leaf spots on the upper leaf surface, raised and …
Jun 27
Hosts: species of Citrus and related Rutaceae Distribution: Hawaii, California, Florida, most of Africa, Australia, Saudi Arabia to India, Indonesia, China, Philippines, Taiwan, southern Japan, New Guinea and nearby Pacific Islands Symptoms: Serpentine mines in leaves and rarely in fruits, curling of leaves. Young leaves are susceptible. Succulent branches of young shoots may also be …