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A male Xylocopa virginica (Eastern Carpenter bee) on Redbud (Cercis canadensis). Bees can suffer serious effects from toxic chemicals in their environments. These include various synthetic chemicals, particularly insecticides, as well as a variety of naturally occurring chemicals from plants, such as ethanol resulting from the fermentation of organic materials.
Diatomaceous earth will also kill mites by disrupting their cuticles, which dries out the mites. Dicofol, a compound structurally related to the insecticide DDT, is a miticide that is effective against the red spider mite Tetranychus urticae. Lime sulfur is effective against sarcoptic mange.
Acaricides, which kill mites and ticks, are not strictly insecticides, but are usually classified together with insecticides. Some insecticides (including common bug sprays) are effective against other non-insect arthropods as well, such as scorpions , spiders , etc. Insecticides are distinct from insect repellents , which repel but do not kill.
Trombiculid mites are found throughout the world. In Europe and North America, they tend to be more prevalent in the hot and humid regions. In northern Europe, including the British Isles where they are called harvest mites, the species Neotrombicula autumnalis are found during the summer and autumn (in French, harvest mites are called aoûtat because they are common in August [19]).
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In addition, alcohol, including methylated spirits, also kills mites. Rinsing the microfibre clothes in ammonia (15% to 20% NH 3 to total volume of water used) is one of the few ways to effectively kill mites on microfibre mop heads and microfibre cloths. It should also be noted that mites are extremely difficult to clean up.
Spider mites are a pain, but can be killed with a few measures, including proper watering, pruning, and use of natural oils to keep infestations under control.
A disadvantage is that, although the insects are quickly stunned by ethyl acetate, it kills them slowly and specimens may revive if removed from the killing jar too soon. Isopropyl alcohol is an easy to find and use killing agent for amateurs.