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1 August 2008 Comparing Oxalic Acid and Sucrocide Treatments for Varroa destructor (Acari: Varroidae) Control Under Desert Conditions
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Abstract

The effectiveness of oxalic acid (OA) and Sucrocide (S) (AVA Chemical Ventures, L.L.C., Portsmouth, NH) in reducing populations of the varroa mite Varroa destructor Anderson & Trueman (Acari: Varroidae) in honey bee, Apis mellifera L. (Hymenoptera: Apidae) colonies was measured under the desert conditions of Arizona, USA. OA and S were applied three times 7 d apart. A 3.2% solution of OA was applied in sugar syrup via a large volume syringe, trickling 5 ml per space between frames in the colony. S was applied at a concentration of 0.625% (mixed with water), according to the label directions, using a compressed air Chapin sprayer at 20 psi to apply 59 ml per frame space. Varroa mites, collected on a sticky board before, during, and after the treatments, were counted to assess the effectiveness of the treatments. This study showed that a desert climate zone did not confer any positive or negative results on the acaricidal properties of OA. Even with brood present in colonies, significant varroa mite mortality occurred in the OA colonies. In contrast, we found that Sucrocide was not effective as a mite control technique. Despite its ability to increase mite mortality in the short-term, varroa mite populations measured posttreatment were not affected any more by Sucrocide than by no treatment at all.

D. Sammataro, J. Finley, and R. Underwood "Comparing Oxalic Acid and Sucrocide Treatments for Varroa destructor (Acari: Varroidae) Control Under Desert Conditions," Journal of Economic Entomology 101(4), 1057-1061, (1 August 2008). https://doi.org/10.1603/0022-0493(2008)101[1057:COAAST]2.0.CO;2
Received: 3 October 2007; Accepted: 25 February 2008; Published: 1 August 2008
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