?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Kontrolle+der+Gloeosporium-F%C3%83%C2%A4ule+bei+der+Lagerung+von+%C3%83%C2%84pfeln+aus+biologischem+Anbau+&rft.subject=Post+harvest+management+and+techniques&rft.description=The+aim+of+the+project+is+to+find+an+alternative+to+hot+water+immersion.+Preliminary+research+during+several+years+with+different+oxidative+substances+and+products+(H2O2%2C+per-acidic-acid%2C+nitrite)+and+with+Ozone+did+not+reveal+sufficient+control.%0D%0A%0D%0AAmong+the+variou+apple+storage+diseases%2C+Gloesporium+sp.+causes+extraordinary+difficulties+with+organic+fruit+compared+with+conventional+fruit.+This+is+due+to+the+fact+that+organic+fungicides+sprayed+against+scab+or+powdery+mildew+have+no+effect+on+Gloeosporium+spores.+Thus%2C+infection+can+cause+very+severe+losses+with+up+to+80-100+%25+with+sensitive+cultivars+such+as+Topaz+or+Pinova.+%0D%0A%0D%0ACurrently+the+Gloeosporium+disease+can+be+partly+controlled+by+post-harvest+by+immersion+of+the+apples+in+50-52+Degree+Celius+hot+water.+Although+this+method+is+approved+by+the+organic+standards+and+reliably+prevents+the+spreading+of+the+disease+its+disadvantages+are+%0D%0Ai)+high+equipment+costs%0D%0Aii)+high+energy+consumption%0D%0Aiii)+pre-harvest+infestation+is+not+controlled+and+becomes+visible+after+immersion.%0D%0A%0D%0AThe+project+aim+is++therefore+to+develop+alternative+post-+and+pre-harvest+methods+to+control+Gloeosporium+storage+disease+in+organic+apple+growing.%0D%0A%0D%0AMethods+applied+are%0D%0A-+Pre-harvest+treatment+with+organic+fungicides+on+the+varieties+Pinova+and+Topaz.+%0D%0A-+Post-harvest+dipping+in+cold+water+electrolyte+solutions.+%0D%0AHot+water+dipping+is+the+reference+treatment.%0D%0A%0D%0AResults%0D%0A%0D%0ASince+2004+we+have+had+significant+control+success+with+the+use+of+clay+powder+for+pre-harvest+control+and+with+dipping+in+cold+water+electrolyte-solutions+for+post-harvest+treatments.+Both+control+strategies%2C+pre-+and+post-harvest+have+to+be+verified+and+optimized.+Additionally%2C+the+technical+equipment+for+fruit+dipping+in+electrolyte+solutions+has+to+be+developed+for+practical+conditions.&rft.type=Project+description&rft.type=NonPeerReviewed&rft.identifier=%7BProject%7D+Gloeosporium+control%3A+Kontrolle+der+Gloeosporium-F%C3%83%C2%A4ule+bei+der+Lagerung+von+%C3%83%C2%84pfeln+aus+biologischem+Anbau.+[Control+of+Gloeosporium+storage+disease+in+organic+apple+growing.]+Runs+2001+-+2007.+Project+Leader(s)%3A+Weibel%2C+Franco%2C+Research+Institute+of+Organic+Agriculture+(FiBL)%2C+CH-5070+Frick.+More+information+online+at+%3Chttp%3A%2F%2Fwww.fibl.org%2Fde%2Fschweiz%2Fforschung%2Fanbautechnik-pflanzenbau.html+%3Chttp%3A%2F%2Fwww.fibl.org%2Fde%2Fschweiz%2Fforschung%2Fanbautechnik-pflanzenbau.html%3E%3E.&rft.relation=http%3A%2F%2Forgprints.org%2F6288%2F