Posts Tagged ‘Biological pest control’

Bats | Biological Pest Control Using Natural Predators

September 29th, 2008

Bats | Biological Pest Control Using Natural Predators


Going batty can be a great way to help control unwanted insect pests. Bats eat mosquitoes as about 10 percent of their overall diet, and a lot of other annoying insects as well, including the moths that are the adults of the infamous “bole weevil” and “corn ear worm”. Bats consume from about 60 to 90 percent of their body mass per night.

Some argue that bats are not effective as mosquito control, since they only consume about 10 percent as a part of their diet, and that bats and birds can only consume a small part of the millions of insects. The argument also states that insect populations increase at a rate so high that no purely physical means of dealing with them is effective.

To counter this argument, let me say this:

  • If the mosquito populations are that high in an area, there are other factors that need to be dealt with, such as draining the swamp you are living in!
  • That each mosquito removed from the population at large, is one less mosquito to bite you, one less potential disease hazard, and one less left to breed and carry on the species!
  • That the numbers of bats should be commensurate with the mosquito population if this is used as a means of controlling them.
  • That the use of biological controls such as birds and bats should be a single part of a much wider Integrated Pest Management system. No one I know who uses these control methods thinks that the use of bats is all that one need do to control mosquitoes.

As a part of our services we now offer custom bat houses, built and installed to your specific needs.

Biological Pest Control

September 24th, 2008

Biological Pest Control


Biological pest control is a double edged sword. Biological controls can be an environmental disaster, or they can be a safe and effective alternative to other methods that might present other problems. The pivot point on this issue is the point of origin of the biological agent.

This is easy to illustrate in the case of exotic vegetation. When invasive exotic vegetation invades an area, it’s natural predators normally don’t come along for the ride. The plant was not invasive in it’s natural habitat, probably as a result of those predators, and it’s natural habitat. Once the plant migrates to a fertile region, with long growing seasons, and other advantages, it will thrive in that area. One method for dealing with this problem is by introducing it’s natural predators. The problem with this method is that we now have 2 non native biological life forms in the region. It is not likely, but is possible, that the biological pest control, can itself, become a pest problem.

The safe method is to encourage native predators to take care of the problem. In the case of problematic insects, birds and bats can be encouraged by providing shelter and meeting their other needs. This is the best method of biological pest control.