18875
hi
no no no no no
10,000
Its over 9000!
dipididoda
Many different types of alcohol are poisonous to insects. Ethyl alcohol is commonly used to exterminate dust mites and other insects.
A 30-gram jar will hold about 1.058 ounces.
Dust is mainly discarded human skin scales and other debris. Dust mites are very tiny spider type scavengers that recycle dust particles into editable food. They recycle so well that they can actually continue to eat what other dust mites have expelled.
Tens of thousands probably, sometime more, sometimes less. Control methods include vacuuming and reducing the humidity in your home. However, you can cover beds in mite proof materials, preferably without any chemicals (as these can be just as harmful). Unfortunately just reducing the humidity won't necessarily reduce the mite population in a bed. They (especially the males) huddle together to conserve moisture, hence ensure you air the bed well and take the opportunity on hot sunny days to get your pillows and duvets outside. Washing at 60°C (and it must reach these temperatures for 20 mins) can also significantly reduce both the allergen and dust mites numbers. Dyson did a test to prove this with their contrarotator washing machine, which was the first to pass the British Allergen Foundation approval for a wash cycle. I know as I developed the test with them whilst working at Dyson. Do some homework before answering these questions a typical bed can house up to 10 million dust mites.
over 6 billion
Not directly as they do not bite. They are not predatory and do not live on humans. They themselves are relatively harmless feeding on our skin. However their parts and especially their excrement is a potent allergen and can be very harmful to those with allergies to house dust. Hence indirectly I suppose they are harmful and can hurt us.
Ladybugs primarily feed on aphids, mealybugs, and other small insects. While they may inadvertently consume some dust mites while foraging for food, dust mites are not a significant part of their diet. Ladybugs are beneficial insects that help control pest populations in gardens and agricultural settings.