Original Articles Varroa jacobsoniBernhard Kraus, Nikolaus Koeniger & Stefan Fuchs Download citation /10.1080/00218839.1994.11100847 Translator disclaimer Original Articles Screening of substances for their effect on Varroa jacobsoni: attractiveness, repellency, toxicity and masking effects of ethereal oils References Citations Metrics Reprints & Permissions Get access Tests were developed to enable the screening of substances for effect on the orientation of the honey bee parasite Varroa jacobsoni.Mites collected from young bees in an Apis mellifera carnica colony were used in the tests, which employed wax tubes incorporating the test substances.During a test, mites could remain in a tube containing a test substance or move from it into a tube of pure wax without the test substance.Twenty-two out of 32 tested ethereal oils had a clear repellent effect on the mites.Oil of clove and oil of cinnamon proved to be the only ones with a clear attractant effect on the mites.

The most pronounced repellent effect was caused by oil of citronella.Oil of marjoram was clearly capable of masking odours.In toxicity tests, most of the tested oils caused a distinct increase in mortality of mites which were exposed to them incorporated in wax at a concentration of 0.1 %.ethereum gpu speedThe other tested ethereal oils caused an increase in mite mortality at a concentration of 1.0% or more.bitcoin difficulty profitThe repellents oil of marjoram and oil of citronella, and the attractant oil of clove, were mixed into the comb foundation wax of test colonies.litecoin news chinaThe infestation rates of V. jacobsoni in capped brood cells was clearly higher in colonies with oil of clove foundation than in control colonies with normal foundation.bitcoin hash explained

The infestation rate was only slightly lower in colonies with oil of citronella, but clearly lower in colonies with oil of marjoram foundation, than in control colonies.This result indicates that a treatment with oil of marjoram might be a way to decrease the population growth of this parasite.Keywords: honey beesApis melliferaVarroa jacobsoniorientationessential oilsattractantsrepellentstoxicity Article Metrics 5 1bitcoin vice chairmanThis is Part 1 of a two-part series.bitcoin calculator redditHere are 5 examples of direct quotes (excuse grammar) from some of the adverse effects from our new Injury Report, scheduled to come out in February 2015.borsa con bitcoinThese are short quotes from the reports, not the report or our words.bitcoin tableau

You will be able to see the details of each entry we received when the report comes out.Most all of these were due to bad advice from misinformation.This is why we believe that education is the key to safety.We love our essential oils and our fellow humans, and we want to help put an end to dangerous and unsafe practices.ethereum miner listMost all of these cases were better once the oil use was discontinued.Here is a list of the 10 Worst Adverse Effects we received this past year.We've included a summary and quoted text directly from the testimonials.10.Undiluted oils applied to small sore:  "blend/frankincense" was used and next day skin turned red, bubbled up and peeled.When concerns were voiced she was told it was "detox, that there's no way to be allergic or have a bad reaction to the oil since they are natural."Most qualified aromatherapists will not acknowledge the claim on "detox" to be true.Dr. Robert Pappas has busted this myth on this page.

Undiluted on wrist: Two drops of clary sage and ylang ylang were used on wrists several times a day for about 10 days.Wrist started itching, broke out in red blotches which turned into blisters which spread into an area of approximately 3 cm x 4 cm.After a month with no oils and jojoba it cleared up."Lesson learned: Always dilute your oils and never use neat oil application to the skin."YES!We love this lesson.Read about this and more in our new FREE safety sheet available for download in our store.Undiluted on mouth sores: "Between 25-35 drops of essential oil on canker sores in mouth on tongue after being told it was safe.This resulted in a trip to ER because of racing heart, panicking, gagging, dry heaving, extremely hot, fever, dizzy and sick and high blood pressure."I thought I was going to die."It is so heartbreaking to read these sometimes.But it is our mission to spread this information so that we don't have any deaths due to misuse.Undiluted long term leads to sensitization: Used essential oils since 1997, and by 2005 got small reactions.

Finally by 2014, found help to understand sensitization and the safe use of essential oils.Now she can only use in low dilutions (if at all) and have turned to hydrosols & flower essences, but "now have A LOT of sensitivities and allergies to a wide range of fragrances and EOs."Thoughwe can become sensitized to a single oil, we can also become sensitized to many single oils and blends.By overusing now, we deprive ourselves of being able to use in the future.Remember the saying, "Less IS more."6.Oral use: Due to ingesting a "lot of" oils - multiple drops multiple times a day - of lemon and grapefruit in water, this person now has been diagnosed with stomach problems, chronic digestive upset, and is looking at possible gallbladder removal.How sad it is to read these stories of people who are looking for alternative health care, possibly to save money or avoid surgery, who then cause even worse problems for themselves or their families.Knowledge is power, never forget that it is in your hands.