如果后院烧烤、野营、庭院工作或体育冒险让你不得不去拿罐装和瓶装的杀虫剂来驱赶恼人的昆虫,那么在你把有毒化学混合物喷洒到你的孩子和你自己身上之前,请停下来,三思而后行,这些混合物通常含有避蚊胺等有毒成分。
Consider safe, chemical-free alternatives that do the job of repelling critters without the health risks inherent in most commercial insect repellents.
Essential Oils
Stop allowing the fear of being “eaten alive” keep you indoors. Essential oils, safe for people and pets,effectively repel bugs without dangerous toxic chemicals. Different essential oils repel different bugs. Invest in a few pungent and potent essential oils and experiment with what works best for the insect pests you typically encounter.
- Ticks and Fleas: Thyme, Melaleuca, Peppermint, Geranium, Cedarwood, Lavender, Orange
- Flies: Peppermint, Patchouli, Eucalyptus, Cedarwood, Melaleuca, Rosemary, Basil, Pine, Wooly Sage, Orange
- Mosquitos: Lemon, Lavender, Thyme, Clove, Sage, Geranium, Lemon, Rosemary, Cinnamon, Peppermint, Spearmint, Orange
- 飞蛾、蟑螂和蠹虫:Thyme, Peppermint, Rosemary, Orange
- Gnats, Ants, Spiders: Orange, Lemon, Eucalyptus, Patchouli, Thyme, Rosemary
Addressing the health concern of using commercial chemical insect repellents WebMd.comadvises using Oil of lemon eucalyptus (PMD). They say: “Several studies have found this natural bug repellent as effective as DEET in repelling mosquitoes.”
If using lavender essential oil as an insect repellent, select Lavandula angustifolia, which is especially effective in repelling a broad assortment of insect predators.
Homemade Essential Oil Insect Repellent Recipes
It’s easy to prepare your insect repellents at home. Experiment to find the combination of essential oils that are most effective for your particular insect problem. Utilize small 3-4 ounce plastic spray bottles, large enough to allow enough space in the container to be able to give the liquid a good shake to blend the ingredients before each application.
- Three tablespoons of one or a combination of the following: vodka, gin, or witch hazel
- Three tablespoons of one or a combination of the following: almond oil, grapeseed oil, jojoba oil, neem oil or olive oil, or neem oil, which in itself has insect repellent properties.
- Combine the above ingredients, add 100-to-120 drops of your favorite essential oil and mix well. For best results use pure food-grade essential oils available for purchase online or from your local organic market or health food store. Although many essential oils repel insects, orange oil is the most effective against all types of insect predators.
- Apply every three to four hours as needed.
Diseases And Discomfort Transmitted By Fleas, Ticks, And Spiders
For those of us in North America, these are the insects most likely to spread disease.
Fleas
Fleas, tiny insects that can jump 150 times their body length, are externally parasitic to pets and people. Fleas can transmit a wide range of diseases including parasitic dermatitis, Lyme disease, Rocky Mountain spotted fever, meningeoencephalitis, and tapeworms.
Ticks
In addition to tick-borne diseases such asRocky Mountain Spotted Fever在美国,蜱虫叮咬会携带唾液,可能会导致缓慢、渐进的瘫痪,这种情况被称为“蜱虫瘫痪”。蜱虫叮咬也可能导致一些人出现轻微到严重的过敏反应。
Spiders
Common across North America,Black Widow spiders咬一口,注射一种神经毒素,产生炎症、肿胀和剧烈疼痛。咬痕可以通过皮肤上的两个小孔识别。毒液不仅会引起咬伤部位的不适,还会扩散到腹部、胸部或全身。
Mosquito-Borne Disease
One of the deadliest insects in the world, mosquitoes carry disease and death. Millions of people worldwide die each and every year from a diverse range of mosquito-borne disease such as the Zika virus, Dengue fever, Chikungunya viruses, and West Nile Virus.
Editor’s note: If you’re in an area with any of these deadly diseases, mosquito bites are a greater risk to your health than the chemicals in insect repellent. Usethe EPA’s search toolto find an appropriate repellent.
Zika Virus
Transmitted by the bite of an infected mosquito, theZika virusis a dire threat to women that are pregnant or plan to become pregnant. If bitten by an infected Andes species mosquito (Ad aegypti or Ae. Albopictus) a pregnant woman can transmit the Zika virus to her unborn child during the pregnancy or at the time of birth.
The Zika virus is a contributing cause of microcephaly and a diverse arrive of severe fetal brain defects. Ongoing medical research studies indicate the Zika virus also presents a wide range of other potential health problems during pregnancy.
West Nile Virus
West Nile virusis another nasty mosquito-borne infection. While most persons infected show no symptoms, the infection can be deadly in persons with a suppressed immune system, children and the elderly. Symptoms typically manifest within 2-to-15 days and may include fever, nausea, vomiting, headaches, fatigue, and loss of appetite.
While most cases of West Nile virus are mild, West Nile meningitis causes inflammation in the protective membranes that cover the spinal cord and the brain. There is no protective vaccine to prevent West Nile fever. The only way to prevent infection is to avoid being bitten by an infected mosquito. In 2012, during one of the worst outbreaks of the disease, 286 people in Texas died from complications of West Nile virus.
Dengue Fever
A mosquito-borne illness,dengue fever这种疾病也被称为“骨折热”,由五种不同的伊蚊型蚊子传播,主要是埃及伊蚊。症状通常在感染后3至14天表现出来,可能包括严重的关节和肌肉疼痛、恶心、呕吐、高烧和典型的皮疹。
In a small amount of cases the disease develops into life-threatening dengue hemorrhagic fever or into dengue shock syndrome which may cause dangerously low blood pressure. In sub-tropical and tropical climates worldwide, dengue affects more than 528 million people annually: approximately 10,000 to 20,000 people die.
Dengue fever is found in 110 countries including the United States. In 2015, more than 160 cases were reported in Hawaii. The only way to prevent the spread of dengue fever is by controlling mosquito infestations and limiting exposure to mosquito bites.
Chikungunya
Presenting symptoms similar to dengue,chikungunyais a mosquito-borne viral disease that causes severe joint pain, fever, nausea and a rash. Treatment involves relieving symptoms: there is no cure for the disease. While found primarily in Asia, Africa and India, chikungunya has been reported in other sub-tropical and tropical regions including the Caribbean.
When not working in her garden in Northwestern Montana, Marlene Affeld writes of her love of nature and all things natural.
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