Gall wasps look like almost any other wasp. They have the usual wasp shape and look. However gall wasp are a two edged sword. Not only do gall wasp look to sting you but they also are parasitic in their larvae stage. Basically what gall wasps do are they mate with another wasp and then they need a safe place to lay their eggs. The gall wasps have the special ability to burrow into plants. The majority of gall wasps will enter into oak trees. The wasps will simply burrow into the oak tree with their drills located on their abdomen. This will create holes in the oak trees, in which the gall wasps will place their eggs. However oak trees arent the only trees that gall wasps will attack. Gall wasps have also been known to go after rose bushes, maple trees, and other herbs.
Therefore gall wasps can be a big pest problems for gardeners. Once the gall wasps eggs hatch they enter their larvae stage. The larvae grow by eating the pith of the tree or bush. The pith is very important to the plant for several reasons. The pith is what gives the plant structure. Without the pith the plant would be unable to stand up straight. The pith is also responsible for adding a protective layer around the vascular tissue of the plant. The vascular tissue is what brings minerals and water to other parts of the plant. If the vascular tissue is damaged in any way the plant will not be able to continue growth and will eventually die. Therefore it is very bad if the larvae of the gall wasps get into your plants as they will begin eating the plant from the inside out. If too much damage is done to the pith of the plant the plant will eventually die.
Gall wasps are very difficult to treat and there are not insecticides or pesticides that have been produced that are very effective at treating them. The best way to treat a gall wasp infestation is to first locate the plant that the gall wasps are targeting. The way to do this is to look for signs of wasp activity in the area. You can look for wasps flying around in areas around certain plants. Also if the wasps are in the birthing stage of the cycle. The gall wasps plant their eggs in things called galls. These almost look like large blob like structures that will be along the twigs of a plant. Now the key is to find these galls before the larvae have a change to come out. For once the larvae emerge from the galls they will start their burrowing into the bark of the plant. Once they are inside the plant it can be to late and there could be a lot of damage done to the plant. Therefore in order to treat a gall wasp infestation simply find the galls and tear them off the plant. Once this is done the infestation should be cleared up.