Unfortunately, the advancement of biological control is not only limited by economical concerns alone, but this needed system is held back by ill-informed perceptions that controlling pests through a predator controlled relationship is not effective enough to be used seriously. Resistance occurs when a portion of targeted pests are able to tolerate the chemical toxins that are place against them. Resistance is a difficult problem because insects that develop it survive and pass their genetic material on to future generations. The new generations are therefore unaffected by chemical toxins. Many of their widely used pesticides are no longer effective at economical and safe rates.
Biological control is a logical and important tool to the agricultural industry.
It is not only the physical nature of the environment that is important but its biotic characteristics as well. An example of an effective bacterium is an anti-pest agent called Thuricide. Once the bacteria in this natural insecticide forms crystalline bodies on plant tissue, the destructive herbaceous larva consumes the crystalline substance and dies from a stomach poison. Parasites are the second most prominent form of biological control At one time, the gypsy moth, notorious for their defoliation ability, was a great concern for both agriculturists and homeowners. Fortunately, the gypsy moth was found to be susceptible to several types of parasitic insects that attack the moth throughout its different life stages.