yes they are very dangerous and are super aggressive and will sting you without you doing anything
yes they are. They are called wood wasps because they like to hang around wood or timber.
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.
the female has a stinger but the male does not
Brown you mean.They are Mud Wasp.
The female Sirex wood wasp can be considered dangerous as it has a venomous sting that it uses to inject toxic spores into pine trees. These spores can lead to the death of the tree. However, the Sirex wood wasp does not pose a direct threat to humans.
The potter wasp uses mud The European wasp ( USA yellow jacket ? ) chews wood The carpenter bee drills a horizontal hole in wood.
To find food, they eat wood burrowing grubs and many other wood-dwelling Arthropods
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.
Japanese hornet I actually found out what it is. Its a horn tailed wasp...also called a wood wasp
You can spray wasp spray into a wood pile to get rid of the wasps. You can also smoke them out.
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.
An anaxyelid is a member of the Anaxyelidae, an insect better known as the cedar wood wasp.