panama tropical race 4...• there is no known cultural or chemical cure for panama tropical race 4;...

Department of Agriculture and Fisheries Biosecurity Queensland Pest alert Quick facts: Panama tropical race 4 strain • Is a soil-borne fungal disease that kills banana plants. • The disease aﬀects Lady Finger, Ducasse and Cavendish banana varieties. • Panama disease enters the plant roots via the soil and spreads throughout the plant blocking the vascular tissue. • External symptoms include yellowing along the leaf margins, wilting of the older leaves and eventually plant death. • Internal symptoms include dark purple/red streaking in the pseudostem. • The disease is spread by movement of infected plant material, and the spores can be spread in contaminated soil and water. • The disease can survive in the soil for as long as 30 years. • There is no known cultural or chemical cure for Panama tropical race 4; disease prevention is the best strategy. • If you suspect you may have Panama disease, do not attempt to remove it. Instead, contact Biosecurity Queensland immediately on 13 25 23. Panama Tropical Race 4 Yellowing of the lower (older) leaves: Picture courtesy of Andrew Daly, Northern Territory DPIF Pseudostem splitting starting from the base of the pseudostem. Picture courtesy of Andrew Daly, Northern Territory DPIF Internal symptoms of Panama disease.

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Page 1: Panama Tropical Race 4...• There is no known cultural or chemical cure for Panama tropical race 4; disease prevention is the best strategy. • If you suspect you may have Panama

Department of Agriculture and Fisheries

Biosecurity Queensland

Pest alert

Quick facts: Panama tropical race 4 strain• Isasoil-bornefungaldiseasethatkillsbananaplants.

• ThediseaseaffectsLadyFinger,DucasseandCavendishbananavarieties.

• Panamadiseaseenterstheplantrootsviathesoilandspreadsthroughouttheplantblockingthevasculartissue.

• Externalsymptomsincludeyellowingalongtheleafmargins,wiltingoftheolderleavesandeventuallyplantdeath.

• Internalsymptomsincludedarkpurple/redstreakinginthepseudostem.

• Thediseaseisspreadbymovementofinfectedplantmaterial,andthesporescanbespreadincontaminatedsoilandwater.

• Thediseasecansurviveinthesoilforaslongas30years.

• ThereisnoknownculturalorchemicalcureforPanamatropicalrace4;diseasepreventionisthebeststrategy.

• IfyoususpectyoumayhavePanamadisease,donotattempttoremoveit.Instead,contact Biosecurity Queensland immediately on 13 25 23.

Panama Tropical Race 4

Yellowingofthelower(older)leaves:PicturecourtesyofAndrewDaly,NorthernTerritoryDPIF

Pseudostemsplittingstartingfromthebaseofthepseudostem.PicturecourtesyofAndrewDaly,NorthernTerritoryDPIF

InternalsymptomsofPanamadisease.

Page 2: Panama Tropical Race 4...• There is no known cultural or chemical cure for Panama tropical race 4; disease prevention is the best strategy. • If you suspect you may have Panama

Panama tropical race 4 in Queensland BiosecurityQueenslandhasconfirmedacaseofPanamatopicalrace4inNorthQueensland.BiosecurityQueenslandisaskingbananagrowerstochecktheircropsforsymptomsofPanamatropicalrace4andreport any signs of the disease immediately to Biosecurity Queensland on 13 25 23.

Description Panamadiseaseiscausedbythefungus Fusarium oxysporum f.sp. cubense.Therearefour(4)racesofPanamadisease,withthetropicalrace4strainposingthemostseriousthreattothecommercialbananaindustry.Panamadiseasecausesyellowinganddyingofbananaleaves.PlantsaffectedbyPanamadiseasemayappearwiltedwithaskirtofdeadleaves.Thebananapseudostemmaysplit,withtheinsideofthepseudostemandcormbecomingdiscoloured.Thesymptomsoftropicalrace4aresimilartothosecausedbytheotherracesofPanamadisease.

SpreadPanamadisease,includingthetropicalrace4strain,iseasilyspreadbythemovementofinfectedplantingmaterial.Thediseaseisspreadbetweenplantsviaroottorootcontactandfromparentplantstosuckers.Thediseasecanalsobespreadbysoilandwater.Anythingthatmovessoil,suchascontaminatedmachineryandequipment,vehicles,shoes,cancarrythedisease.

Prevention TopreventthespreadofPanamadiseasetropicalrace4,producersshould:

1. Alwaysuseclean,diseasefreeplantingmaterialsuchastissuecultureplantsorplantsfromaproven diseasefreesource.

2.Avoidsharingequipmentandmachinerywithothergrowers.

3.Practicegoodhygienemeasuresbyensuringshoes,equipmentandvehiclesarecleanandfreeofsoilandplantmaterialpriortouse.

4.ImplementtrainingprogramstoeducatestaffaboutPanamadiseaseandtheimportanceofworkinghygienically.

5.Displaysignsattheentranceoffarmsclearlydetailingtheproperty’sbiosecurityrequirementstovisitors.

AsthereisnoculturalorchemicalcureforPanamatropicalrace4,preventionisthekeytoprotectingthehealthofbananacrops.

If you suspect you have Panama tropical race 4IfyouseeplantsshowingsymptomsofPanamadiseaseorbelieveyoumayhavecropsaffectedwiththisdisease,youmust notify Biosecurity Queensland immediately on 13 25 23.Donotattempttoremoveordestroyaffectedplantsasthismayincreasetheriskofspread.Earlydetectionandinterventionisvitaltomanagethisdisease.

Further informationFormoreinformationaboutPanamadiseaseortropicalrace4,visitwww.biosecurity.qld.gov.auorcallBiosecurityQueenslandon132523.

CS3986 03/15

Theinformationcontainedhereinissubjecttochangewithoutnotice.TheQueenslandGovernmentshallnotbeliablefortechnicalorothererrorsoromissionscontainedherein.Thereader/useracceptsallrisksandresponsibilityforlosses,damages,costsandotherconsequencesresultingdirectlyorindirectlyfromusingthisinformation.

©TheStateofQueensland,DepartmentofAgricultureandFisheries,2015.

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