Do Beneficial Insects kill all of the pest?
There is no known method, chemical, physical or biological that will eradicate a insect pest problem. Chemicals will knock down a insect problems, but it will return in a day or two. Likewise beneficial insects do not eradicate pests, however they are a method to reduce the pest problems to an acceptable level. This level depends on the tolerance of each individual gardener. Some will apply more that suggested number of beneficials because they do not wish to see the pests, while some individuals are willing to put up with some plant damage.
