2015年2月24日 · Vaporization of oxalic acid in a field trial with 1'509 colonies Austria 2000 The content of oxalic acid in the treated colonies was between 22,8 and 37,7 mg/kg honey (fig. 9). …

2025年2月2日 · I Wanted to ask all the people that use spraying of oxalic acid solution on frames, in Radmacher and Harz review they suggested that a 3% OA dehydrate solution with only …

2025年2月1日 · So the amount of oxalic acid in honey is trivial compared to many other foods. Spinach is 6600 mg/kg. Almonds are 4300 mg/kg. If you use OAV 10 TIMES at 3g/time, and …

2020年7月10日 · How does oxalic vaporization work? In the CRC Handbook of Chemistry and Physics we find that upon heating oxalic acid, the water of hydration boils off first, then at …

2021年7月25日 · How does oxalic acid kill mites, don't know, with some tests done it appears if the mite comes into contact with OA crystals it dies. Maybe some of the mites just die of fright …

2023年1月3日 · Looking at Mannlake's website they currently have two brands for oxalic acid. 12.35 oz bag of Api-Bioxal (Oxalic Acid) for $50 ($65 / pound) 10 pound bag of Oxalic Acid …

2021年4月24日 · The use of wood bleach, oxalic-acid rich plants, or oxalic acid from chemical supply companies are not registered products. Use of oxalic acid that does not adhere to label …

2010年11月22日 · Hi. I did Oxalic Acid Vapor twice about a month ago and it didn't hurt my bees. You should be fine as long and you do it correctly, 1 gramm of acid per hive body, 2 hive …

2024年10月23日 · Bees do die from excessive OA exposure. Yes, it has been well shown that 1 gram dosage is not nearly effective enough. 2 grams dose per brood box has been shown to …

2011年12月30日 · Oxalic acid residues Just before the spring treatments the mean natural concentration of oxalic acid (±S.E.M.) was measured to be between 19.56±0.83 ppm and …