총 748페이지

3. 원 문
FallarmywormdetectedinGeraldton
Growers in the Mid West are encouraged to be vigilant for fall armyworm, after the
pestwasfoundinatrapatGeraldton.
AsingleadultmothwascollectedinapheromonetrapmonitoredbytheDepartmentof
PrimaryIndustriesandRegionalDevelopment(DPIRD).Nolarvaeorfeedingdamagehas
beenfoundtodate.
DPIRD officers are liaising with growers and agronomists in Western Australia to
providesupportwithtrappingandadviceonminimisingtheimpactoffallarmywormin
horticulturalandgrainscrops.
DPIRDseniorresearchscientistHelenSpaffordsaidvegetableandgraingrowersinthe
areashouldbecheckingforlarvaeintheircrops,monitorunusuallevelsofdamage,and
report suspected fall armyworm to the department to assist with surveillance and
potentialmanagementoptions.
“Accurately identifying fall armyworm will be important to determine the management
optionsthatcanbeused,”DrSpaffordsaid.
“Thiscanbechallengingbecausemanycaterpillarsalreadypresentintheareawilllook
similartofallarmyworm.
“Young, fall armyworm larvae are light coloured with a darker head. As they develop
the body darkens, becoming more brown with white lengthwise stripes. They also
developdarkspots,thepatternofwhichisimportant,withspines.”
DPIRD research scientist Dusty Severtson said an extensive trapping program for fall
armywormwasunderwayinthegrainbelt.
“Surveillance in the grainbelt has not detected this pest to date, but we are regularly
monitoringtrapsincollaborationwithlocalgrowergroups,”DrSevertsonsaid.
“Thepotentialpresenceandimpactoffallarmywormoncereals,canolaandpulsecrops
atvariousgrowthstagesisnotyetknown.”
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