ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Field infestation of rambutan fruits by internal-feeding pests in Hawaii.

McQuate, G. T.; Follett, P. A.; Yoshimoto, J. M.;

Journal of Economic Entomology Year: 2000 Vol: 93 Issue: 3 Pages: 846-851 Ref: 20 ref.

2000

บทคัดย่อ

More than 47 000 mature fruits of nine different varieties of rambutan (Nephelium lappaceum) were harvested from orchards in Hawaii, USA to assess natural levels of infestation by tephritid fruit flies and other internal feeding pests. Additionally, harvested, mature fruits of seven different rambutan varieties were artificially infested with eggs or first instars of Mediterranean fruit fly, Ceratitis capitata, or oriental fruit fly, Bactrocera dorsalis to assess host suitability. When all varieties were combined over two field seasons of sampling, fruit infestation rates were 0.021% for oriental fruit fly, 0.097% for Cryptophlebia spp., and 0.85% for pyralids. Species of Cryptophlebia included both C. illepida, the native Hawaiian species, and C. ombrodelta, an introduced species from Australia. Cryptophlebia spp. had not previously been known to attack rambutan. The pyralid infestation was mainly attributable to Cryptoblabes gnidiella, a species also not previously recorded on rambutan in Hawa

ii. Overall infestation rate for other moths in the families Blastobasidae, Gracillariidae, Tineidae and Tortricidae was 0.061%. In artificially infested fruits, both species of fruit fly showed moderately high survival for all varieties tested. Because rambutan has such low rates of infestation by oriental fruit fly and Cryptophlebia spp., the two primary internal feeding regulatory pests of rambutan in Hawaii, it may be amenable to the alternative treatment efficacy approach to postharvest quarantine treatment.