Jamilee Kempton

Author's posts

May 18

May 2015 – Pest of the Month

Monkeypod Round-Headed Longhorn Beetle – Xystrocera globosa Hosts: Wide range of species of wild and cultivated leguminous trees, (Mimosaceae, Papilonaceae), belonging to genera such as Acacia, Acrocarpus, Adenanthera, Adina, Albizzia, Bauhinia, Cassia, Duabanga, Haematoxylon, Parkia, Xylia, Paraserianthes, Samanea, and several Malvaceae (Grewia, Salmalia) and Rosaceae (Prunus). Distribution: Originates from Southeast Asia, and is widely distributed.  …

Continue reading

Feb 18

February 2014 Pest of the Month

Hawaii Early Detection Network Priority Pest for Kauai, Oahu, Molokai, Lanai, and Big Island. Have you seen Hala Scale (Thysanococcus pandani)? Identification: Presently only on the island of Maui. The hala scale insect (Thysanococcus pandani) causes yellowing of and serious damage to the leaves of Hala (Pandanus tectorius). Adult and immature scale insects are seen on …

Continue reading

Jan 13

January 2014 Pest of the Month

Pest of the Month Update – Little Fire Ant (LFA), Wasmannia auropunctata.  The Hawaii Department of Agriculture has confirmed that the LFA has spread from Big Island to Maui and Oahu. http://www.kitv.com/news/hawaii/agriculture-officials-confirm-spread-of-fire-ant-to-oahu-maui/-/8905354/23720066/-/15huymlz/-/index.html http://hdoa.hawaii.gov/blog/main/lfaonhapuu/ Hosts: LFA are found both on the ground and in vegetation. They climb onto plants of all sizes, including trees, but they …

Continue reading

Oct 24

November 2013 Pest of the Month

Biological Control Release of Tectococcus ovatus, a Gall-forming Scale Insect to Aid in the Control of Strawberry Guava (Psidium cattleianum) in Hawaii.  Strawberry guava was introduced to yards and gardens of Hawai‘i in 1825. Since then, it has spread into moist and wet forests statewide. Strawberry guava is killing and replacing native forests by forming dense, …

Continue reading

Oct 07

October 2013 Pest of the Month

Melaleuca Psyllid – Boreioglycaspis melaleucae Moore An introduced psyllid for biological control of Paperbark trees in Florida. Hosts: Melaleuca quinquenervia (Paperbark Tree), Melaleuca leucadendra, Melaleuca nervosa, Melaleuca argentea, Melaleuca viridiflora, Melaleuca nodosa, and Callistemon citrinus (Bottlebrush). Distribution: B. melaleucae has been collected from all states in its native Australia except South Australia. Specimens released in …

Continue reading

Sep 08

July 2013 Pest of the Month

Graphiola leaf spot – Graphiola phoenicis Hosts: The primary hosts in Floridaare Phoenix species, especially Phoenix canariensis (Canary Island date palm) and Phoenix dactylifera (date palm). Distribution: Widely distributed throughout the date-palm growing world. Damage: Very small black, cup-shaped fungal bodies (sori) are present on leaf blade of the oldest leaves.  This disease is primarily …

Continue reading

Sep 08

June 2013 Pest of the Month

Acacia Psyllid – Psylla uncatoides Hosts: Acacia koa, Acacia koaia Distribution: Originates in southeast Australia. Also found in New Zealand, California, and Hawaii. Damage: Feeds primarily on the young terminal growth. Heavy infestations can severely defoliate and kill twigs and branches. Control: A biological control, Harmonia conformis, was successfully established in Hawaii in the 1970s. …

Continue reading

Sep 08

May 2013 Pest of the Month

Gliocladium blight – Pink Rot of Palms Pathogen:  Gliocladium vermoeseni (fungus) (recently renamed Nalanthamala vermoeseni). Hosts: Chamaedorea spp, Dypsis spp. (Areca palms, etc.), date palm, queen palm, Mexican fan palm, others. Symptoms: Invasive rot of buds, petioles, leaf blades, and trunks/stems, dark brown necrotic areas near the base of the stem, gummy exudates, premature death …

Continue reading

Sep 05

April 2013 Pest of the Month

Boron Deficiency Hosts: Palms Symptoms Twists or bends in the stems, failure of apical meristems to fully open and expand, and leaf wrinkling or crumpling known as “accordion leaf”. There may be chlorosis in young leaves, shortening of terminal internodes, or “scorched” leaf tips.  Fruits may abort prematurely due to functional failure of pollen tubes.  In certain …

Continue reading