01752nas a2200181   4500008004100000020001400041245009100055210006900146260001200215300001400227490000700241520109400248100001601342700001201358700001601370700002201386856016201408       1989                        eng d  a0044-843500aActivity of essential oils of Lamiaceae on Ascosphaera apis and treatment of an apiary0 aActivity of essential oils of Lamiaceae on Ascosphaera apis and   c1989///  a221 - 2280 v203 aThe first part of the experiment consists of the measurement of fungistatic and fungicidal activities of essential oils of different Labiaceae: Origanum vulgare (2 varieties), Satureia montana (4 varieties), Thymus vulgaris . In vitro, the most effective oils generally have a rich carvacrol content (higher than 30%). The clone of thyme (number 133) shows anti-fungal properties relatively constant through time. The second part of the experiment is a field study to assay the therapeutic value of an oil, which is active and palatable for bees, the essential oil of savory (Satureia montana ), imported from Albania. This is mixed with sugar-candy (dilution: 0.1%; dose of 1 ml per colony) and fed at the end of wintering (February). Seven colonies were experimentally treated, 7 colonies were unfed and another 7 received simple sugar-candy. The evolution of chalkbrood was estimated by counting, two times a week, the dead larvae gathered at the entrance of the hive, during the 75 following treatment. Under these conditions, the efficacy of the essential oil of savory is significant1 aLarribau, E1 aBoue, T1 aColin, M, E1 aDucosdeLahitte, J  uhttp://muse.lib.auth.gr:9797/com/csa/?MuseHost=www-mi2.csa.com&MuseFirst=1&id=2&recnum=7&SID=55360d1a6858ae31d3e80acbc52d3e6b&MusePath=/ids70/view_record.php01446nas a2200145   4500008004100000020001400041245006700055210006700122260001200189300001200201490000800213520090100221100001601122856016201138       1990                        eng d  a0931-204800aEssential oils of Labiatae for controlling honey bee varroosis0 aEssential oils of Labiatae for controlling honey bee varroosis  c1990///  a19 - 250 v1103 aThe efficiency of Labiatae essential oils was compared with a classical aerosol treatment, including the acaricidic substance amitraz at the 0.25 concentration. The tested concentrations of the experimental mixture were 1% of thyme (Thymus vulgaris L.) and 0.5% of sage (Salvia officinalis L.). These products were also injected into each colony by the aerosol way for one minute. 4 applications in an interval of 3 or 4 cays constitute the treatment. The dead mites (Varroa jacobsoni Oud.) were counted everyday. The number of surviving mites was estimated by means of a fluvalinate control treatment. No difference in the global efficiency was found for the moderately infested colonies (less than 1300 mites, a few mutilated pupae), which contained a small brood area. A weak grade of post-therapeutic residues in honey was only detected by gas chromatography just after aerosol administration1 aColin, M, E  uhttp://muse.lib.auth.gr:9797/com/csa/?MuseHost=www-mi2.csa.com&MuseFirst=1&id=2&recnum=6&SID=55360d1a6858ae31d3e80acbc52d3e6b&MusePath=/ids70/view_record.php