Common names: erythrina gall wasp, erythrina gall wasp (EGW) Taxonomic name: Quadrastichus erythrinae Kim Life Cycle Stages: Lifecycle stages Studies conducted by the Hawaii Department of Agriculture (HDOA) on Erythrina gall wasp (Quadrastichus erythrinae) indicate a life cycle (egg to adult) of about 20 days. A one-day old female wasp contains about 60 mature eggs … More wiliwili tree pests life cycle
Pu’u WaaWaa’s dead Wiliwili tree that was alive less than a year ago.
This calendar indicates the annual growing cycle of Wiliwili trees on the Big Island, Hawai’i. There are exceptions with trees who may maintain their leaves a great deal longer then the others in the same area. Some will flowered and seeds while others do not. Seeds will either drop to the ground or remain in … More wiliwili tree annual calendar
It appears that the proposed Kawaihae Road Bypass will miss the remaining Wiliwili trees that are in Department of Land and Natural Resources in Kamuela. I am not certain whether there are more trees west toward the coast and Kawaihae that may be threatened by construction of this new bypass. Further survey of existing trees … More kamuela wiliwili trees and kawaihae bypass road
On our recent survey on April 11th, we discovered that some seeds were filled with tiny bugs whom appeared dead when the seeds were cut open. These were actually cocoons of Pteromalidae wasp, as identified by Ross Hill contributor to http://www.bugguide.net, a parasitic wasp that preys on the larvae of Bruchid beetles that infect the … More wiliwili allies, Pteromalidae wasps
Bruchid beetles (Specularis impressithorax), bean weevil, emerged from wiliwili seeds collected in September 2008. These seeds were stored in a glass jar for six months. the beetles lay dormant inside the seed and eat their way out through little hatches. One seed was infested with six beetles. Finding them emerged after a six months hibernation … More wiliwili tree pest bruchinae beetle
I collected more seeds from a group of wiliwili trees just outside of Kamuela ,Hawaii in the shadow of Pu’u Huluhulu. Wiliwili seeds resemble kidney beans. My intent is to propagate these plants by starting them from seeds. Seeds are collected as the drop to the ground. The soil underneath these trees are dry and … More wiliwili tree seeds and seedling