Oxalic Acid(草酸,乙二酸) Trickling

发布时间:2011-09-24 12:39    文章来源:湖北天马养蜂场    浏览量:2106 次    【字体大小:正常 偏大 最大

ManythingshasbeentestedinthefightaginstVarroadestructor.Organicacidshaveshownreasonablygoodresultsandandhavebeenusedformorethan10yearsinEurope.ThefirstacidusedwasFormicacidthatwasevaporatedataslowspeedinsidethehive.Itisstillinusewhenit'stheonlyacidthatpenetratesthewaxandkillmitesinsidethecappedcells.Itdoeshavesomedrawbackswhenitdependsonseveralfactorsliketemperature,hivevolumeandhivetype,andhastobemonitoredcarefullyforefficiancy.

LatelyOxalicacidhasproventobeuseful,researchisgoingoninanumberofcountriesinEuropeandiscoordinatedtocompareresultsfromdifferentregions.

OxalicAcid(草酸,乙二酸)Trickling

Tricklingasolutionofwater-sugar-oxalicacidisapromisingmethodtokeepVarroalevelsdown.

Ithastobedonelateintheseasonwhenthereisnobroodinthehive.

Alargesyringemakesiteasytocontrolthevolumegiventoeachhive.

Itismuchfaster,safer,andcheaperthanusingavaporiser.

UseonlyOxalic-2-hydrate(C2H2O2*2H2O),notthewaterfreeOxalic.

Mix7,5partsOxalicto100partswaterand100partssugarbyweight

75gOxalic-1literwater-1kgsugarwillmake1,66litersolutionthatisenoughfor50hives.Thismixedupsolutionwillkeepforafewweeksonlyandshouldbeusedatonce.

Use20to35mlsolutionforeachhivedependingonthesizeofthetreatedcolony.

OxalicAcid(草酸,乙二酸)Trickling

Ona2boxhivethesolutionisdistributedaccordingtotheamountofbeesineachbox.Thetopboxnormallyholdsmorebeesandisgiven70%ofthesolution.

OxalicAcid(草酸,乙二酸)Trickling

Thebottomboxisgiven30%ofthetotalsolution.

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Thesolutionisdistributedevenlyinthegapbetweenthetopbars,soitwilldripdownandreachasmanybeesaspossible.

Timeperhive1,5min.Costperhive0,1€.

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