No, but they are a real pest of plants.
yes they do
yes.
A few I know of are aphids, mealy bugs, and cicadas
yes it makes them meow alot
You never totally rid African Violets of mealy bugs. For bad infestation take plant out of pot trim most of roots off rinse off and, replant in a clean pot. Go to garden center get soil mealy but pesticide.
A mealybug is attracted by moist and wet climates. If you have a basement that is warm and gets wet regularly, they might make their basement their home.
No bugs are not dangerous but, some bugs can be very harmful to people, animals, and other bugs too.
Mealy bugs, slugs, scale and snails can bother your sedum. Bees will pollinate it.
Stink bugs chase away attackers with a horrific smell. Stink bugs are not dangerous to humans, they just have a bad smell.
Sugarberry is another name for hackberry which is a tree in the southeast US. The berries secrete a sweet sticky substance in the autumn that attracts gazillions of mealy-bugs. The mealy-bugs gorge themselves with the secretions and produce a dew-like substance of saccharine sweetness known as ghost rain. Many songbirds eat the sweetish fruits and help disperse the seeds.
Their larvae is to a few species of bugs (since they work as parasites on them they get to)
Ladybugs do eat yellow jacket larvae. They also help to take care of other pests such as mealy bugs, aphids, leafhoppers, and other crop-destroying bugs.