Although pesticides are generally very effective at controlling pests, the disadvantage of using them arises when we realise how harmful they are to the environment. It’s important to remember at this stage that pesticides are extremely powerful chemicals. As a result, long after the pests have left, signs of them can sometimes be found where they were used. Those traces inevitably wash down to the water bodies, where they cause havoc with the (non-pest) plants and animals that live there. Have a look at Team Veterans Pest Control to get more info on this.
Concerns about chemical pest control’s environmental effects prompted concerns about whether a more environmentally friendly form of pest control could not be created. The end result was the investigation of alternatives, such as biological pest control, to see if it is really the answer to the questions posed regarding (chemical-based) pest control.
Other species that are considered to be predators to the pests are released upon the said pests, eating them up and thus resolving the pest problem. Instead of spraying an environmentally unfriendly chemical to control aphids, other species that are known to feed on aphids are introduced into the field where the problem is to feed on the aphids.
The issue with biological pest control, on the other hand, is that it is mostly ineffective. Although chemical pest control is usually rigorous, leaving no pests or even traces of them, this is not always the case for biological pest control. Implementing biological pest control on a wide scale (for example, over a thousand-hectare plantation) can be a herculean task. In the end, it is factors like these that motivate us to continue developing more environmentally sustainable pest control methods. This is because, while biological pest control addresses the environmental issues posed by chemical pest control, it does not appear to be effective (or scalable) enough in the eyes of the majority of people.