Erythrina Gall Wasp Quadrastichus erythrinae Kim Photo MM

Erythrina Gall Wasp Quadrastichus erythrinae Kim Photo MM Yang

Erythrina Gall Wasp Erythrina variegata Tigers Claw, Indian Coral Tree, Wiliwili-haole

Erythrina Gall Wasp Ø Described as a new species in 2004 from specimens from Singapore, Mauritius, and Reunion Islands Ø Then found in Taiwan, China, India, Guam, and Okinawa Ø Discovered on Oahu in April 2005, on Molokai & Maui in August 2005, on Kahoolawe & Lanai in October 2005.

Erythrina Wasp Host Range Ø Erythrina, family Fabaceae Ø In Hawaii: ØErythrina variegata - tall wili ØErythrina crista-galli ØErythrina sandwicensis (native),

Erythrina Wasp Host Range Ø On the mainland US and Mexico: Ø Erythrina americana Ø Erythrina bidwillii Ø Erythrina caffra- Kaffirboom Coral Tree Ø Erythrina coralloides- Naked Coral Tree Ø Erythrina falcata Ø Erythrina humeana – Natal Coral Tree Ø Erythrina lysistemon

Erythrina Biology Male Female MM Wang Mating Female preparing for oviposition

Erythrina Wasp Damage E. bidwillii (healthy)

Erythrina Wasp Control Ø Seed collection of Erythrina species has begun. Seeds are being stored at Ft. Collins, CO. Ø Insecticidal injections and drenches have been tried in Taiwan and Hawaii. Chemical controls have not proven effective in Taiwan. Biocontrol agents are being sought.