Claim · model-written summary
After releases in California, Washington, Idaho and Oregon in 1985, B. orientalis became established in all states by 1989.
- Taxon
- B. orientalisBangasternus orientalise0
- Interactor
- B. orientalisBangasternus orientalise0biocontrol_agent
- Outcome
- became establishede0
- Setting
- California, Washington, Idaho, and Oregone0
Not reportedDirection
Verbatim
e0“Releases of B. orientalis were made in California, Washington, Idaho, and Oregon in 1985 and it became established in all states in 1989”
Title
Gaetano Campobasso; Rouhollah Sobhian; Lloyd Knutson; et al. Environmental Entomology 1998. doi:10.1093/ee/27.6.1525
Other claims from this paper (6)
- Observation Adults of the weevil laid eggs only on members of the genus Centaurea and on the thistle Onopordum acanthium.
- Observation Eggs laid on Onopordum acanthium hatched but the first instars died before entering buds.
- Observation The number of eggs laid did not differ significantly among the U.S. and Italian strains of C. solstitialis tested.
- Observation Eggs were not deposited on the economically important species Cynara scolymus, Helianthus annum, Carthamus tinctorius and Lactuca sativa.
- Observation Among the 60 plant species, varieties and strains tested, larvae completed development only on C. solstitialis from Greece and on U.S. and Italian populations of C. solstitialis.
- Recommendation The authors concluded that the restricted host range supported introducing this weevil as a biological control agent against yellow starthistle in the United States.