yes they are very dangerous and are super aggressive and will sting you without you doing anything
Yes - there are many types of wasps in California including: German yellowjacket, western yellowjacket, California yellowjacket, paper wasp, mud dauber, fig wasp, Western sand wasp, square headed wasp, bee wolf, Pacific burrowing wasp, gall wasp, soldier wasp, club horned wasp, burrowing wasp, blue mud wasp, cutworm wasp, thread-waisted wasp, mason wasp, potter wasp, and pollen wasp. Obviously this is not a complete list - just scratching the surface really - but it does demonstrate that California has plenty of wasps.
Brown you mean.They are Mud Wasp.
No wasp eats wood. There is a big species of wasp that has larvae eating wood, the Horntail (Uroceras gigas). Other wasps chew wood and use it to construct their nests. The hornet feeds itself with sap from the bark of trees and uses wood for nestbuilding also.
The sirex wood wasp is toxic to trees, but not to humans. The wasp injects a toxic mucus and a fungus while she is laying her eggs in the bark of susceptible pine trees.
the female has a stinger but the male does not
To find food, they eat wood burrowing grubs and many other wood-dwelling Arthropods
The potter wasp uses mud The European wasp ( USA yellow jacket ? ) chews wood The carpenter bee drills a horizontal hole in wood.
You can spray wasp spray into a wood pile to get rid of the wasps. You can also smoke them out.
Japanese hornet I actually found out what it is. Its a horn tailed wasp...also called a wood wasp
To protect itself from predators. Most predators will avoid it, thinking it may be a poisonous wasp or hornet. It is harmless.....unless you are a tree.....it bores into wood.
It eats dead wood. Sure u cannot be as stupid as that!
An anaxyelid is a member of the Anaxyelidae, an insect better known as the cedar wood wasp.