Passiflora tarminiana as a biocontrol target in Hawaii
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Biocontrol agent: Cyanotrica necyria
Status in Hawaii: The leaf feeder Cyanotrica necyria (Lepidoptera: Notodontidae) from Ecuador and Colombia was released in Hawaii in 1988 as a biological control agent for Passiflora tripartita var. mollissima, and became established but has had no demonstrable effect on the target species. Further work on this species is desirable because it has a high potential for completely defoliating plants. REFERENCES |
Biocontrol agent: Dasyops sp. Status in Hawaii: (no status currently available; inquire) REFERENCES |
Biocontrol agent: Dasyops spp. Status in Hawaii: (no status currently available; inquire) REFERENCES |
Biocontrol agent: Josia fluonia Status in Hawaii: Josia fluonia (Lepidoptera: Notodontidae), a defoliator, was recommended for release in Hawaii as a biological control agent for Passiflora tripartita var. mollissima, but release may have been reconsidered when experiments indicated it can survive on edible passionfruit (Passiflora edulis f. flavicarpa). The insect does not appear to have a significant impact on the target plant. REFERENCES |
Biocontrol agent: Josia ligata Status in Hawaii: Josia ligata (Lepidoptera: Notodontidae), a defoliator, was brought into quarantine as a potential biological control agent for Passiflora tripartita var. mollissima, but the colony did not survive. REFERENCES |
Biocontrol agent: Odonna sp. Status in Hawaii: (no status currently available; inquire) REFERENCES |
Biocontrol agent: Odonna spp. Status in Hawaii: (no status currently available; inquire) REFERENCES |
Biocontrol agent: Pyraustra perelegans Status in Hawaii: Pyraustras perelegans (Lepidoptera: Pyralidae) feeds on leaves and buds of Passiflora tripartita var. mollissima (banana poka). It was released in 1991 with little effect. It is established on the Big Island, but population levels are extremely variable. The insect may have been unable to overcome the many generalist lepidopteran parasitoids in Hawaii, or it may be susceptible to a fungus (Metschnikowia sp.). REFERENCES |
Biocontrol agent: Septoria passiflorae Status in Hawaii: The fungus Septoria passiflorae (Deuteromycetes, Dothidiaceae) was released in Hawaii in 1986. It had an apparently dramatic defoliating effect in Laupahoehoe (Big Island), but the cause of defoliation was not confirmed, and drought may have been a factor. REFERENCES |
Biocontrol agent: Zapriotheca nr. nudiseta Status in Hawaii: Zapriotheca nr. nudiseta (Diptera: Drosophilidae) larvae feed on flower buds of Passiflora tripartita var. mollissima (banana poka) and appear to have potential to disrupt the reproductive cycle of this plant. The fly passed host specificity testing, but was not proposed for release. The colony in quarantine was highly inbred. Further importation of the insect was needed to overcome genetic problems and complete host screening. It will be extremely difficult to assess the impact of this insect because large plants are needed, and the logistics of handling such plants in quarantine are unrealistic. Field studies in South America are not currently feasible (2000). REFERENCES |
| The Hawaiian Ecosystems at Risk (HEAR) project is currently funded by the Pacific Basin Information Node (PBIN) of the National Biological Information Infrastructure (NBII) through PIERC (USGS) with support from HCSU (UH Hilo). More details are available online. |
 
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| This page was created on 04 August 2009 by PT, and was last updated on 15 December 2009 by PT. |
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