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Kentucky Fruit Facts May-June Newsletter 2020 http://www.uky.edu/hort/documents-list-fruit-facts John Strang, Extension Fruit Specialist, Editor Daniel Becker, Editor Denise Stephens, Newsletter Designer Inside this Issue: Fruit Crop News . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Upcoming Meetings. . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Welcome W. Garrett Owen . . . . . . . . . . . . . . . . . . . . . 2 Spring Freeze Impact on Kentucky Fruit Crop. . . . . 3 Insecticide and Calcium Program for 2020 if the Crop is Lost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Disease Management for Non-Bearing Orchards: Spray Considerations after Freeze Losses . . . . . .4 Grapes and Frost. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Woolly Apple Aphids Flaring in Some Orchards . . . 6 Kentucky Fruit Grower Retail Prices for 2019. . . . . 7 North American Raspberry & Blackberry Association Grower Pricing Survey . . . . . . . . . . . 8 Consider These Digital Wallet Options for Credit Card Payments. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 An IPM Scouting Guide for Common Problems of Peach in Kentucky. . . . . . . . . . . . . . . . . . . . . . . . . 9 Receiving Fruit Facts on the Internet. . . . . . . . . . . .10 Note: We have ceased publishing Fruit Facts as a hard copy or mailed newsletter. If you would like to continue receiving Fruit Facts, please sign up for email delivery as described at the end of this newsletter or contact your County Extension Office to have them print a copy for you. Fruit Crop News John Strang, U.K. Extension Horticulturist, Daniel Becker, Extension Associate, and Matt Dixon, U.K. Ag Meteorologist This has been a very difficult spring for fruit growers! Not only have multiple frosts been devastating for many growers, but persistent rainfall has made it difficult to get new plantings in the ground. The cool spring prolonged bloom, but fortunately the fire blight infection incidence on apples and pears has been minimal. However, cedar apple rust has been a problem on unsprayed apple trees. It is too late for control this season, but plant pathology has an excellent short video on this disease if you want to brush up. Apple Rust -2:49 minutes (http:// plantpathology.ca.uky.edu/files/ppfs-fr-t-05.pdf ) After a wet spring Matt Dixon notes that the coming weeks are liable to be dry ones. The National Weather Service predicts with a high confidence level that Kentucky will experience drought conditions at least up through June 22. Growers should work on getting irrigation systems up and running. Plants extract water first from upper soil levels and as a drought persists begin removing water from deeper soil reserves. It is best to avoid deep soil level moisture depletion as this is the reserve for extended dry periods. Deep depletion increases the potential for water stress during the summer and early fall when fruit is ripening and can reduce size and yield at harvest. Severe stress will negatively affect vegetative growth when it occurs and fruit development the following year. When coupled with hot weather, abnormal flower buds can develop, leading to such disorders as fruit doubles in apples and deep sutures in peaches. Early ripening cultivars seem particularly susceptible to increased fruit defects in response to stress. Cooperative Extension Service University of Kentucky Horticulture Department N-318 Ag. Science Ctr. No. Lexington KY 40546-0091

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Page 1: Kentucky Fruit Facts€¦ · Receiving Fruit Facts on the Internet. . . . . . . . . . . .10 Note: We have ceased publishing Fruit Facts as a hard copy or mailed newsletter. If you

Kentucky Fruit FactsMay-June Newsletter 2020 http://www.uky.edu/hort/documents-list-fruit-facts

John Strang, Extension Fruit Specialist, Editor Daniel Becker, EditorDenise Stephens, Newsletter Designer

Inside this Issue: Fruit Crop News . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Upcoming Meetings. . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Welcome W. Garrett Owen . . . . . . . . . . . . . . . . . . . . . 2 Spring Freeze Impact on Kentucky Fruit Crop. . . . . 3 Insecticide and Calcium Program for 2020 if the Crop is Lost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Disease Management for Non-Bearing Orchards: Spray Considerations after Freeze Losses . . . . . .4 Grapes and Frost. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Woolly Apple Aphids Flaring in Some Orchards . . . 6 Kentucky Fruit Grower Retail Prices for 2019. . . . . 7 North American Raspberry & Blackberry Association Grower Pricing Survey . . . . . . . . . . . 8 Consider These Digital Wallet Options for Credit Card Payments. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 An IPM Scouting Guide for Common Problems of Peach in Kentucky. . . . . . . . . . . . . . . . . . . . . . . . . 9 Receiving Fruit Facts on the Internet. . . . . . . . . . . .10

Note: We have ceased publishing Fruit Facts as a hard copy or mailed newsletter. If you would like to continue receiving Fruit Facts, please sign up for email delivery as described at the end of this newsletter or contact your County Extension Office to have them print a copy for you.

Fruit Crop NewsJohn Strang, U.K. Extension Horticulturist, Daniel Becker, Extension Associate, and Matt Dixon, U.K. Ag Meteorologist

Thishasbeenaverydifficultspringforfruitgrowers!Notonlyhavemultiplefrostsbeendevastatingformanygrowers,butpersistentrainfall

hasmadeitdifficulttogetnewplantingsintheground.Thecoolspringprolongedbloom,butfortunatelythefireblightinfectionincidenceonapplesandpearshasbeenminimal.However,cedarapplerusthasbeenaproblemonunsprayedappletrees.Itistoolateforcontrolthisseason,butplantpathologyhasanexcellentshortvideoonthisdiseaseifyouwanttobrushup.Apple Rust -2:49minutes(http://plantpathology.ca.uky.edu/files/ppfs-fr-t-05.pdf ) AfterawetspringMattDixonnotesthatthecomingweeksareliabletobedryones.TheNationalWeatherServicepredictswithahighconfidencelevelthatKentuckywillexperiencedroughtconditionsatleastupthroughJune22.Growersshouldworkongettingirrigationsystemsupandrunning.Plantsextractwaterfirstfromuppersoillevelsandasadroughtpersistsbeginremovingwaterfromdeepersoilreserves.Itisbesttoavoiddeepsoillevelmoisturedepletionasthisisthereserveforextendeddryperiods.Deepdepletionincreasesthepotentialforwaterstressduringthesummerandearlyfallwhenfruitisripeningandcanreducesizeandyieldatharvest.Severestresswillnegativelyaffectvegetativegrowthwhenitoccursandfruitdevelopmentthefollowingyear.Whencoupledwithhotweather,abnormalflowerbudscandevelop,leadingtosuchdisordersasfruitdoublesinapplesanddeepsuturesinpeaches.Earlyripeningcultivarsseemparticularlysusceptibletoincreasedfruitdefectsinresponsetostress.

Cooperative Extension ServiceUniversity of KentuckyHorticulture DepartmentN-318 Ag. Science Ctr. No.Lexington KY 40546-0091

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CindyFinnesethhasdevelopedandkeptaCOVID-19pageupdatedontheKentuckyHorticultureCouncilwebsite.ItcontainsamultitudeoflinksthatcovereverythingfromfundingtoCDCrecommendationsforprotectingyourself.https://kyhortcouncil.org/covid-19-coronavirus-information-and-resources/PleasepayspecialattentiontotheKDA,“MinimumRequirementsandGuidanceforKentuckyDirectFarmMarketingOperations”alsoatthislink.

Upcoming Meetings & DeadlinesMany meetings have been cancelled due to COVID-19

All times EST unless noted

Jun. Viticulture and Enology Field Day, HorticultureResearchFarm,4321EmmertFarmLn.,Lexington,KY.Postponeduntilearly-MidAugust.SeefutureFruitFactsfordetails. Sept. 14 Early Apple Tasting, BullittCountyExtensionOffice,384HallsLane,Shepherdsville,KY40165.6:00p.m.Contact502-543-2257. Oct. 19 Late Apple Tasting, BullittCountyExtensionOffice,384HallsLane,Shepherdsville,KY40165.6:00p.m.Contact502-543-2257. Jan. 4-5, 2021 Kentucky Fruit and Vegetable Conference, SloneConventionCenter,1021WilkinsonTrace,BowlingGreen,KY42103.ContactCindyFinneseth859-490-0889,[email protected] Jan. 6, 2021 Direct Marketing Summit, SloneConventionCenter,1021WilkinsonTrace,BowlingGreen,KY42103.ContactCindyFinneseth859-490-0889,[email protected]

Welcome W. Garrett Owen

ItisapleasuretowelcomeGarrettOwenintotheU.K.DepartmentofHorticultureasanAssistantProfessorandExtensionSpecialistofFloriculture,GreenhouseandControlledEnvironments.HebeganworkonMay1andhisappointmentissplitbetweenExtension,research,teachingandservice.HisofficeislocatedoncampusinLexington.

Garrett’sareaofexpertiseiscontrolledenvironmentornamental,specialtyandfoodcropproduction;plantnutrition;productionproblemdiagnostics;andyoungherbaceousperennialplantpropagation.Hisundergraduatecoursewillinvolvegreenhouseandcontrolledenvironmentstructures,managementandproduction.Dr.OwenreceivedhisB.S.inHorticulturalSciencefromNorthCarolinaStateUniversityandM.S.inHorticulturalSciencealsofromNorthCarolinaStateUniversityworkingon,PineWoodChipsasanAlternativetoPerliteinGreenhouseSubstrates:CulturalParameterstoConsider.HisPh.D.isfromPurdueUniversitywherehisdissertationinvolvedSupplementalandSole-sourceLightandRoot-zoneTemperatureInfluenceonCuttingPhysiology,Morphology,andRhizogenesisofHerbaceousPerennials.FollowingcompletionofhisPh.D.in2017,GarrettwasemployedasanEasternMichiganFloricultureandGreenhouseOutreachSpecialistforMichiganStateUniversity.Hehasanimpressiverecordofcutting-edgegreenhouseresearchandpublicationsaswellasprofessionalandextensionpresentationstohiscredit.Dr.Owen’searlyyearswerespentinMt.Ulla,NorthCarolinawherehegrewupona1,000-acreproducefarm.PleasewelcomeDr.OwentoKentuckyandwishhimwell.

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Figure 1. Dr. W. Garrett OwenContact: email: [email protected]; Office phone: 859-257-4721

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Spring Freeze Impact on Kentucky Fruit CropsBy John Strang, U.K. Extension Fruit & Vegetable Specialist and Matt Dixon, U.K. Ag Meteorologist

ThecombinationoffreezesandCOVID19aremakingthe2020seasonanextremelychallengingoneforKentuckyfruitgrowers.Additionally,theprolongedwetcoolweathermadeitdifficultforbeestoflyandpollinate.Examinationofthisyear’sgrowingdegreeaccumulations(Figure2)showsthattheseasonstartedoffasanormalone,butcoolweatherdelayedcropdevelopmentbyasmuchastwoweeksastheseasonprogressed.Infact,plantdevelopmentwastwoweekslaterthanthe2007seasonwhereweexperiencedthedevastatingEasterfreeze.Aseriesofrecord-breakinglatefreezesprimarilyonthemorningsofApril15,16andMay9servedtoprogressivelycompoundinjuryonKentuckyfruitcrops.Cropfreezelossesweresevereonallofourfruitcropsinthenorthern,central,southernandeasternportionsofthestate.Somegrowershavefruitonselectedvarieties,generallyonlaterbloomingvarieties,butlossesareextensiveontreeandsmallfruitcrops.ItlookslikegrowersatlowerelevationsinfarSoutheastKentuckyhavesomesurvivingfruit,butatthehigherelevationsitwasextremelycold.SouthernareasfromBardstownwestthroughBowlingGreen,Princeton,Paducahandpointswestgenerallyfairedwell,dependingonthesite.Growersonhighsitesintheseareashavefullcropsofapples,peachesandotherfruittypes.Someonlowersitesdidnotfaresowellandreportedlossesofpeachesandearlybloomingapples.InspectionofsurvivingapplefruitinouruniversityorchardinLexingtonshowsthatmanyhaveonlyafewseedsprimarilyduetopoorpollination.Afewsurvivingpeachesaresizingwellandlookgood,buttherearenotenoughonthetreestojustifyspraying.Peachesthathavehadtheirseedskilledaredroppingfromthetree,butsomearehangingonandwillfailtosize.Ihaven’ttalkedwithanygrowersincolderareasthathaveplumsorcherries.Inthelightofseverelossesinpartsofthestate,mostappleandpeachgrowerswillsourcefruitfromareaswherethecropsaregood.Plasticulturestrawberrygrowershadtoprotecttheircropsfromfrostastheynormallydoeveryyear.Thosethathadadequateprotection,insomecases

theuseofadoublelayeroffloatingrowcovershavegenerallydonewell.Itisdifficultformetoassessblueberrycropdamageimmediatelyafterafreeze.Again,likestrawberriesearliermaturingvarietiesbloomearlierandaremorepronetolosses.Initiallymanygrowersthoughtthattheyhadweatheredthefreezesuccessfully,butberrieshavecontinuedtodrop.Theblueberriesthataresizingnormallyareundamaged.Someofthesmalleronesthatareturningblueearlyandoftendroppingarefreezedamaged.Ifasmallerfruitiscutinhalf,browningisevidentwheretheseedshavebeeninjured.Undamagedlargerfruitwillbelightgreeninside,andtheseedswillbewhite.Seedsareimportantinmobilizingcarbohydratesandresourcesintothefruittohelpitsize.Blackberrygrowerswillalsohavelightercropsasmanyflowerseveninthebudstagewerekilled,butthesecontinuedtoopenandlooknormalexceptfortheblackcenters.Flowerbudsthatwerelessmatureatthetimeofthefreezeareproducingfruitnow.Fallbearingraspberrieshadsomeprimocaneinjuryincolderareas,butthiswillnotaffectthefallcrop.Junebearingraspberriesgenerallylostsomeflowersintheseareas,butstillhaveapartialcrop.PatsyWilsonaddressesthegrapecropsituationbelow.Persimmons,pawpaws,pecans,chestnuts,hickories,blackwalnutsandmanytreesinthewoodshadtheirleavesfrozenbackonceortwicewhicheliminatedallorjustaboutalloftheirflowersincolderareas.Thishassubstantiallyreducedfoodfor

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Figure 2.. Growing degree day accumulations (base 50°F) for 2020 and past years.

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wildlifeandgrowersshouldexpectintensifiedwildlifeproblemsonsurvivingfruitcrops.FruitgrowersinIndianaandOhioandstateseastofKentuckyalsohaveseverefruitcroplosses.MostsouthernIllinoisgrowershavecrops.

Insecticide and Calcium Program for 2020 if the Crop is LostBy Ric Bessin, UK Extension Entomologist and John Strang, UK Extension Horticulturist

Thereareafewinsectsthatdon’tmindthatthereisn’tacropandtheseshouldbeofprimeconcernthisseason.Thereisatendencytoforgetaboutsprayingtheorchardifthereisn’tacrop,butthereareseveralinsectpeststhatcanseriouslyaffectnextyear’scrop.Japanesebeetlescanbeaprobleminjustaboutallofourfruitcrops.Ifthesebuildupandcauseseriousdefoliation,controlwillbenecessary.Inapples,SanJosescaleisapestatthetopofthemustbecontrolledlist.Itisimportanttokeepupwiththedevelopmentofthispestandkeepthenumbersdown.CrawlersarenormallycontrolledduringthelatterpartofMayinKentucky.However,withthecool2020spring,emergenceislikelyclosertoendofthefirstweekinJune.Anotherpestthatcanaffectnextyear’scropisthewoollyappleaphid.Watchforthewhitesnowysignsofthispestonthelimbsanddon’tletitbuildupintheorchard.Ifanappleblockhasalightcropandisreceivingafullseasonsprayprogram,trytoincludecalciumchlorideinasmanycoverspraysaspossible.Treeswithalightcropundergoveryvigorousgrowthandavailableplantcalciumismobilizedtotheshoottips.Thisleadstofruitcalciumdeficiencyandseriouscorkspotandbitterpitproblems.PeachtreesshouldalsobewatchedforSanJosescaledevelopmentandcontrolsapplied.Peachtreeborersfindatreewithoutacropjustasenticingasonewithacrop.Makesurethatpeachtreeandlesserpeachtreeborerspraysareappliedattheappropriatetimes.Thismightbeagoodyeartogetcontrolsupintotheupperportionofthetreeforlesserpeachtreeborer,sincetherewon’tbecropresidueproblems.Evenwithoutfruit,Orientalfruitmothwillattackterminalgrowthandcausediebackonpeaches.Thiscanbeaseriousproblemonsmallertrees.Growers

shouldtreatat75to175DD(base45)afterpeakflightwhenusingpheromonetraps.Plumtreesshouldalsohavepeachtreeborercontrolsapplied.Onblackberriesandraspberries,checkthecrownsforraspberrycrownborer.Treatcrownsinlatefallorearlyspringifthepopulationwarrantsthis.

Disease Management for Non-Bearing Orchards: Spray Considerations after Freeze LossesBy Nicole Gauthier, UK Extension Plant Pathologist

Apple:•FireBlight–monitorforsecondaryandrattailblooms;usestreptomycintoprotectblossomsagainstfireblight;typicallythroughApril.Apogeeatpetalfalliseffectiveformanagementofshootblight.•CedarAppleRust–maintainfungicidescheduleforrust;typicallythroughMay.•BitterRot,BlackRot,WhiteRot–fruitrotfungicaninfectandsurviveintwigsandstems;usemancozebandcaptanthroughthefirstorsecondcovertomanagesporeloadintheorchard,typicallythroughJuneorlongerifweatheris rainy.•PowderyMildewandScab–thesediseasesareusuallynotmajorconcernsforKYgrowers;monitororchardsandsprayifdiseaseispresent.

Peach:•PeachLeafCurl–managepeachleafcurlduringdormancy.•BlossomBlight&BrownRot–usecaptanthroughshucksplitforblossomblight.•PeachScab&CherryLeafSpot–maintainaregularsprayschedule(7to14dayintervals)withlowerratesoffungicide;usehigher/regularratesifweatherisrainy;captaniseffectiveforfungalleafspots.•BacterialSpot–maintainaregularsprayscheduleforbacterialspot;useoxytetracyclineatpetalfallandshucksplit;lowratesoffixedcoppermaybeusedforearlycoverspraysifdiseasepressureishighorifweatherisrainy.•PowderyMildew–monitorforpowderymildew;

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usesulfurifneededoriforchardhasahistoryofpowderymildew.

Grapes and FrostBy Patsy Wilson, U.K. Extension Viticulture Specialist

Aftermultiplefreezeeventsitlookslikeweareheadedintosomerainy,butconsistentlywarmtemperatures.Asexpected,manyofyouhavehadnumerousquestionsaboutwhattodoandwhattoexpectafterthesecoldevents.Rightnow,vinesarepushingnewshootsfromsecondary,tertiary,latent,orbasalbudsiftheprimaryshoots/budswerekilledineitherofthefreezes.Inmostcasestherewillbevaryingstagesofshootdevelopmentduetothefrostdamage.Historically,bloomtimeforthemajorityofcultivarsinKentuckyaveragesaroundthethirdweekinMay.However,basedonpost-freezedevelopmentattheresearchvineyardweareabouttwoweeksbehindandanticipatingstaggeredbloomtimeevenwithinthesamecultivar.

What should I expect from frost-damaged vines?Immediatelyfollowingalatefreezeevent(s)thevinesalwayslookprettybad.Insomecases,howevernotallislost!!Returnfruitfulnesscanbedrasticallydifferentbasedonnumerousfactors.Generallyspeakingreturnfruitfulnesswillbebestfor:

*Large-clusteredcultivars*Cultivarswithfruitfulbasaland/orfruitfulnon-countshoots*Vinesolderthan1-2years*Spurprunedvines(theytendtohavemoreone-yearoldbudsafterdormantpruningthancanbeprunedvines)*Vinesthatmaintainedahealthyopencanopythepreviousseason(shootdensity3-5shootsperfootofrow)*Vinesthatmaintainedanappropriatebalanceofcropvs.leafareainthepreviousseason (balancednotover-croppedvines)

Forvineswith100%primaryshootdamagefromfrost:(thismeansallactivelygrowingshootsweredamagedbyfrost/freeze)

*Retainbasalshootsthathadnotyetpushed(thesecanbehighlyfruitful)*Watchformorethannormalamountsofnon-countshoots.Thesecanquicklyleadtoover-crowdedshootdensityandunnecessarycanopyshadingwithlittlerewardoffruit.Adjustshootdensityifnecessary.

Forvineswithlessthan100%primaryshootdamagefromfrost:(thismeanssomebutnotallgrowingshootsweredamagedbyfrost/freeze)

*Assessthenumberoffruitfulshootsthat remain,whilealsokeepinganeyeonthe numberoffruitfulbasalshootsthatemerge afterthefrost.

*Basalshootscantake2-3weekstobegin togrow.Thiscanleadtounevenclusterdevelopmentandripening.Thisdelayin clusterdevelopmentmayrequiremultiple harvesttimestocarefullyselectclusters fromthefirstsetofshoots(thatwerenot frosted)followedbyfruitfulbasalshoots thatemergedmuchlaterthanthefirst setofclusters.

So,whatdoesthismean?Preandpostbloomarethecriticalwindowsfordiseasemanagement.Inaseasonlikethis,timingofthosesprayscanbealittlechallengingsincebloomtimecanbevariable.Maintainyourdiseasemanagementprogram!Eveniftheemergingshootsarenotfruitfulitisessentialtocontinueyoursprayprogram.Themostcriticalwindowtosprayfordiseasesis2weeksprebloomand4-6weekspostbloom.Maintainingshoothealtheveninyearswithlittlefruitiscriticaltothevinesoverwinteringsurvivalandfruitfulnessinthefollowingyear. Belowisasurveycreatedtocollectinformationonstate-widevinedamagefromtheAprilandMayfreezeevents.Itshouldonlytakeafewminutesandwouldbeextremelyhelpfulifyoucouldfillitout.Therearealsohelpfullinksrelatedtograpephenologyandpestmanagement.Questions?ContactPatsyatemail:[email protected]:859-494-16572020KentuckyFrostSurvey-https://docs.google.com/forms/d/e/1FAIpQLSfk5u5vBmFQNBWBvGLP-HtqHmGehGsyUYqOOTq2g1n3mIs0jw/viewform

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Culturalcalendarforcommercialgrapeproduction-https://plantpathology.ca.uky.edu/files/ppfs-fr-s-27.pdfMidwestfruitpestmanagementguide-https://plantpathology.ca.uky.edu/files/ppfs-fr-s-23.pdfHomegrapegrowersprayguideSprayworksheetandsamplesprayguides-https://plantpathology.ca.uky.edu/files/ppfs-fr-s-23.pdf

Woolly Apple Aphids Flaring in Some OrchardsBy Ric Bessin, U.K. Extension Entomologist

WhileIhavenotreceivedreportsyetofwoollyappleaphidactivityonappletrees,therewereseveralcommercialorchardslastyearwithseriousinfestations.Insomeyears,thiscanbeattributedtowoundscausedbyperiodicalcicada,butithasbeenseveralyearssincethesehaveemerged.Thismaybeduetotheincreasinguseofpyrethoidsinsecticidestomanageotherpests.Pyrethroidinsecticides(IRACgroup3A)arehighlytoxictonaturalenemies,anditisthosenaturalenemiesthatkeepwoollyappleaphidnumberslow.

Woollyappleaphidisaseriouspestofapples,particularlyyoungtrees.Maturetreesusuallysufferlittledamagefromrootinfestations.Above-groundcoloniesformatwoundsitesontrunks,limbs,andtwigs,wheretheyfeedthroughtenderbark(Figure3).Besidescicadaegg-layingwounds,pruningandhaildamagecancreatethewoundsitesforattackbythispest.Aspopulationsgrow,aphidsarecommonlyfoundonwatersproutsinthecenterofthetree.Thetreewillbegintoswellandformgallsatthefeedingsites.Evenaftertheyarecontrolled,theseswollennodesthatremainaresignsofpreviousinfestations.Thewoollyappleaphiddiffersfromotherappleaphidsinappearance,lifecycle,andthetypeofdamageinflicted.Acolonyappearsasacottonymassgenerallyclusteredinwoundsandpruningscarsonthetrunkandbranchesofthetree.Theaphidsthemselvesarepurplishincolorsurroundedbywhite,cottonysecretions.Woollyappleaphidisasuckinginsectpestthatweakensthetreebyfeedingonlimbsandrootsandproduceshoneydew.Longstrandsofwhitewaxareproducedthathelptoprotectthecolonyofpurpleaphidsfrompredatorsandpesticidesprays.Asthenumberofaphidsontheabovegroundportionofthetreeincrease,manyworktheirwaydowntotherootsbelowgroundsurface.Itisthefeedingontherootsthatproducesthegreatestdamage.Controloftheseaphidsisverydifficultwhentheyattacktheroots.

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Figure 3. Woolly apple aphid colonies form where the bark is thin, often on new growth or near wounds to the bark. (Photo: Ric Bessin, UKY)

Figure 4. Yellowed leaves can be a sign of wooly apple aphid infestations. (Photo: Ric Bessin, UKY)

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Duringthesummer,repeatedwoollyappleaphidgenerationsofwinglessindividualsareproduced.Yellowishfoliageisasignthatwoollyappleaphidmaybeinfestingroots(Figure4).Therootsystemsofnurserystockcanbedamaged,andsevererootinfestationscanstuntorkillyoungtrees.Infestedtreesoftenhaveshortfibrousroots,whichpredisposesthemtobeingeasilyuprooted.Swollengallsalsoformonroots;gallsincreaseinsizefromyeartoyearandaresiteswherefungicanattack.Aphidfeedingontherootsystemsalsodisruptsthenutrientbalanceofroottissue,whichcanaffectgrowthofotherpartsofthetree.Rootstocksvaryinsusceptibilitytowoollyappleaphidandsusceptiblerootstockswillformgallsaroundtheinfestationsites.TheMM.111orMM.106rootstockserieshassomeresistance,buttheG.41,G.213,G.214,G.22,G.202,G.210,G.890,G.969haveevenhigherlevelsofresistance.RootstocksappearingmoresusceptibletowoollyappleaphidinfestationincludeB.9,M.9,andM.26.Itisrelativelyeasytofindwherethecolonieshaveformed.Whenmonitoringforwoollyappleaphid,examinefourpruningscarsoneachof5scaffoldlimbspertree.Carefullyexaminewoollyappleaphidcoloniestodetermineifliveaphidsarepresent.Predators,suchasladybeetles,syrphidflylarvae(Figure5),andlacewinglarvaecancompletelydestroythecolony,butthewaxyresiduewillremain.Whenexaminingcolonies,blowhardonthebranchtoremovethewaxyfilamentstorevealliveaphids.Treatmentsforwoollyappleaphidarerecommendedwhen10%ofthepruning/egglayingscarsareinfestedwithlivecolonies.Therearefewinsecticidesspecificallylabeledforcontrolofwoollyappleaphid.Admire,Beleaf,Closer,Diazinon(commercialuseonly),Movento,PQZ,andVersysarerecommendedforcontrolofabove-groundinfestations.

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Figure 5. Natural enemies, like this syrphid fly larva, play a key role in keeping wooly apple aphid numbers low. (Photo: Ric Bessin, UKY)

Kentucky Fruit Grower Retail Prices for 2019By Chris Smigell, UK Extension Associate for Small Fruits & Vegetables and John Strang, UK Extension Fruit Specialist KentuckygrowersthatparticipateintheNoninsuredCropDisasterAssistanceProgram(NAP)arerequiredtoprovidetheircroppricesandyieldsfromprioryearstotheirFarmServiceAgencyoffice(FSA)tocalculatetheassistancefundingthattheyreceive.Ifagrowerdoesnotsupplytheseprices,nationalwholesalepricesareused,whicharesubstantiallylowerthanwhatKentuckygrowerstypicallyreceiveintheretailmarket.TheKentuckyStateFSAofficeacceptsaverageKentuckyfruitpricesprovidedbyU.K.ExtensionifaKentuckygrowerdoesnothavehistoricalpricerecords.BelowaretheresultsofKentuckygroweron-farmmarketandfarmers’marketpricesfor2019.Thepricesshownintables1and4areretailmarketfruitpricescombininggroweron-farmmarketand*farmers’marketprices.Thesetableslistaveragetree-andsmallfruitprices-aswellasthehighestandlowestpricesreportedaspricesper-unitandper-pound.Tables2and5showaveragetreeandsmallfruitpricesper-unitandper-pound,allowingcomparisonsbetween2019,2018and2017.Table3showsaverage,lowandhighappleciderpricesfor2019,2018and2017.Generally,thehighestpriceswereobtainedfromLexington,LouisvilleandBowlingGreenareafarmers’marketreports.The2019averagepricesincreasedfrom2018(Tables2and5)forapples,peaches,blackberries,blueberries,raspberriesandmattedrowstrawberries,butdecreasedforpears,plums,plasticulturestrawberriesandapplecider.TheNAPprogramprovidesfinancialassistancetoproducersofnon-insurablecropsthathavesignedupfortheprogramwhenlowyields/grazingloss,lossofinventoryorpreventedplantingoccurduetonaturaldisastersincludingdrought,freeze,hail,excessivemoisture,excessivewindorhurricanes.Moreinformationcanbefoundat:https://www.fsa.usda.gov/state-offices/Kentucky/index

*Farmersmarketpricereportscanbefoundat:https://www.uky.edu/ccd/pricereports/KYFM

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North American Raspberry & Blackberry

Association Grower Pricing Survey

ResearchersattheNorthCarolinaStateUniversity,incollaborationwiththeNorthAmericanRaspberry&BlackberryAssociation(NARBA)andtheUniversityofArkansasareconductingasurveytolearnmoreaboutcaneberrypricingandretailstrategiesfor2020,aswellastheimpactsofCOVID-19.Informationcollectedinthesurveywillbeusedtogainabetterunderstandingofthemarketing,pricing,andsalesstrategiescurrentlybeingusedbycaneberryproducersacrosstheUnitedStatesandCanada.ResultswillbepublishedintheNorthAmericanRaspberryandBlackberryAssociation’s(NARBA)membernewsletter.Areportwillalsobeemailedtoallparticipantswhorequestthisoption.Thesurveyshouldonlytakearound10minutestocomplete.Yourparticipationiscompletelyvoluntary.Yourresponseswillberecordedanonymouslyandnoidentifyingpersonalinformationwillbecollectedwithinthesurvey.Youarefreetorefusetoparticipateintheresearchandtostopcompletingthesurveyatanytime.ThissurveyclosesMonday,June22.Thankyouforyourparticipation!

Toaccessthesurvey,pleaseclickhere:https://ncsu.qualtrics.com/jfe/form/SV_cIVQbVyaGsI23BP

Ifyouhaveanyquestionsaboutthesurveyitself,pleasecontactDr.DanielTregeaglebyemailattregeagle@ncsu.eduorbyphoneat919-515-6091.Inaddition,youcancontacttheNCStateIRBOfficeviaemailatirb-director@ncsu.eduorviaphoneat919-515-8754.YoumayalsocontactNARBAbyemailat

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[email protected],orbyphoneat919-542-4037.

Consider These Digital Wallet Options for Credit Card PaymentsFrom the KCARD website Thenameofthegamethesedaysissocialdistance.Sohowdoyouacceptpaymentsfromcustomerswithoutgettingcloserthan6feetorhavingtohandlecash?Digitalwalletsarefinancialaccountsthatallowuserstostorefunds,maketransactions,andtrackpaymenthistoriesbycomputerorphone.Herearesomeofthemostpopularoptionsthatwillallowyoutotakepaymentswithouthavingtogetacreditcardreader(andsomethatconnectwithSquare).

Venmo(https://venmo.com)Afreedigitalwalletappthatallowsyoutosendorreceivemoneyeasily.Youlinkyourbankaccountordebitorcreditcardtosendorreceivemoney.Ontheappyouwillcreateausernamethatyourcustomerscanusetofindyou.Oncecustomerssendmoney,Venmowillholdthemoneyinyourprofileuntilyoutransferthemoneyintoyourbankaccount.Fees:$0iflinkedtoyourbankaccount,3%iflinkedtoyourcreditcard.

PayPal(https://www.paypal.com/us/home)Asecurewaytosendorreceivepayments.Youcanlinkbankaccounts,debitcards,andcreditcardstoyourPayPalaccounttotransfermoney.UsingPayPalallowscustomerstopaywithPayPal,Venmo,andmajorcreditanddebitcards.YoucanalsotrackandsendinvoicesthroughPayPal.Fees:2.7%feepercardswipesale,3.5%+$0.15forkeyed-insale,2.9%+$0.30feepertransactionforonlinepayments.FacebookPay(https://pay.facebook.com/)AwaytomakepaymentsonFacebook.YouenteryourpaymentaccountinformationonceandthenuseFacebookPay.SimplylinkaPayPalaccount,creditordebitcardtosendandreceivemoney.

Facebook Pay(https://pay.facebook.com/)AwaytomakepaymentsonFacebook.YouenteryourpaymentaccountinformationonceandthenuseFacebookPay.SimplylinkaPayPalaccount,creditordebitcardtosendandreceivemoney.FacebookPayis

integratedwithFacebookandFacebookMessenger.FrauddetectionandpersonalizedPINforyourdeviceworktogethertopreventunauthorizedtransactions.RequiresanactiveFacebookaccount.Fees:None.

Apple Pay(https://www.apple.com/apple-pay/) AllowsyoutosendandreceivemoneywithAppleusers.ReceivedmoneyiskeptinAppleCashuntiltransferringtoyourbankaccountordebitcardassociatedwithyouraccount.Addabankaccount,credit,ordebitcardtoyourAppleWallettochoosefromwhenmakingapayment.ApplePaycanalsobeusedthroughSquaresoftwarewiththecontactlesspaymentmethod,meaningcustomerscanholdtheirdevicenearthepaymentreadertopay.Toacceptthesepayments,youmusthaveacontactlesscardreader,whichcanbepurchasedandusedwithSquareSoftware.Fees:1%feeforinstanttransfertoadebitcard.

Google Pay(https://pay.google.com/about/)Awaytopayonline,inapps,andinstoresusingthecardssavedtoyourassociatedGoogleAccount.GooglePaymayalsobedownloadedintheAppleAppstore,makingitaccessibleforbothAppleandGooglephoneusers.GooglePayisalsoacceptedinstoresthroughthecontactlesspaymentmethod.Toacceptthesepayments,youmusthaveacontactlesscardreaderwhichcanbepurchasedandusedwithSquareSoftware.Fees:None.Toreadtheentirearticle,https://www.kcard.info/news2/2020/4/17/new-methods-of-accepting-payments-online

An IPM Scouting Guide for Common Problems of Peach in Kentucky (ID-260)By Cheryl Kaiser, Plant Pathology Extension Support and Nicole Gauthier, Plant Pathology Extension Specialist

ScoutingandmonitoringcropstodeterminepotentialproblemsbeforetheyresultinseriouseconomiclossiskeytotheIntegratedPestManagement(IPM)approach.ThisIPMguidewasdesignedtoaidintheidentificationofcommonproblemsencounteredinpeachplantingsinKentucky.Diseases,insects,weeds,abioticdisorders,andwildlifedamagearediscussed.Descriptionsareaccompaniedbyoneormorecolorimages,aswellasbriefmanagementcomments.

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ThispublicationistheresultofacollaborativeeffortbetweenUKExtensionSpecialistsinPlantPathology,Entomology,Horticulture,andForestry(wildlife).AnIPMScoutingGuideforCommonProblemsofPeachinKentucky(ID-260-http://www2.ca.uky.edu/agcomm/pubs/ID/ID260/ID260.pdf)isavailableonline.Thepeachscoutwebsiteforuseonyourphoneortabletisavailableathttps://peachscout.ca.uky.edu/.

Receiving Fruit Facts on the Internet By subscribing to the email notification service youwill receive an email announcement when each newissue is posted on the web with a link.

To subscribe, send an email message:

TO: [email protected]: Fruit FactsMESSAGE: subscribe KY-FRUITFACTS Followed by a blank line OR to unsubscribe, the lines: signoff KY-FRUITFACTS Followed by a blank line

You should receive confirmation by return email. Ifyou have a problem, or if you wish to communicatewith a person about “fruitfacts”, the owner’s address(the TO: line of the message) is: [email protected]

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thank you! To All Essential Workers for Everthing You Have

Done for Everyone!