Different Types of Biological Pest Control Methods

Different Types of Biological Pest Control Methods

Different Types of Biological Pest Control Methods increased understanding of the negative effects of pesticide use on the environment and human health has led to initiatives to lessen the dependency on chemical controls in recent years. Pest Control Methods include Pesticide manufacture, registration, and their use which has become increasingly, tightly regulated in many nations, raising the cost and reducing the availability of these instruments. Pesticide resistance is all about Pest Control Methods and is now a widespread reality in many weeds, insects, and diseases, and the pests themselves have highlighted the need for change in many cases.

Natural enemies have a long history of minimizing insect effects. Observing that ants were good controllers of many citrus pests, the ancient Chinese increased their populations by removing ant nests from nearby environments and installing them in their plantations which is also an ancient Pest Control Methods. Insectaria and the air-freight transfer of natural enemies across the county or around the world are only modern versions of these fundamental concepts.

In this post, we will look at several biological Pest Control Methods and how one can use them in current pest management.

Approaches to Biological Pest Control Methods

Importation, augmentation, and conservation of natural enemies are the three main ways of biological Pest Control Methods. In a biological control programme, you can utilize each of these strategies alone or in combination.


You can use importation of natural enemies or classical biological Pest Control Methods when a pest of foreign origin is the goal of a bio-control programme. People continuously introduce pests are into places where they are not native, whether by mistake or on purpose. Many of these introductions fail to establish, or if they do, the organisms are unlikely to become pests. However, due to a lack of natural enemies to control their populations, it is fairly uncommon for some of these introduced creatures to become pests.

Farmers discover the pest’s place of origin; exploration of the pest’s native land can begin in search of potential natural enemies. And people can study such enemies in their original nation for their potential influence on the pest organism, or you can transport into the new country for further research, this can also be one of the Pest Control Methods.

The use of natural enemies to suppress the alfalfa weevil is an example of a successful approach. The alfalfa weevil, a European native, was first discovered in the United States in Utah in 1904. In 1951, a second introduction was discovered on the East Coast. The weevil had spread to all 48 contiguous states by 1970 and had become a severe alfalfa problem. Natural enemies were first imported in 1911, but it was not until 1957 that a substantial effort targeted at biological control of the weevil was launched. USDA ARS staff performed overseas exploration throughout Europe as part of this initiative, which resulted in the introduction of 12 parasitoid species.


The direct modification of natural threats to boost their effectiveness is augmentation, it is one of the best Pest Control Methods. One or both of two broad strategies can be used to attain this: bulk manufacturing and periodic colonization; the first method, in which natural enemies help in insectaries, and people use this method widely.

In locations where a particular natural enemy cannot overwinter, for example, an inoculative discharge each spring may allow the population to establish and control a pest effectively. Inundative releases are when a big number of natural enemies act in such a way that their population entirely outnumbers that of the pest. When natural enemies are not there or can’t respond rapidly enough to the pest population, augmentation will come into the picture. As a result, unlike importation or conservation measures, augmentation rarely results in permanent pest reduction.


Natural enemy conservation is an important factor of any biological control programme. This involves finding the factor(s) that may restrict the efficiency of a specific natural enemy and altering them to improve the beneficial species’ effectiveness. Natural enemy conservation, in general, includes decreasing conditions that limit natural enemies or supplying resources that natural enemies require in their ecosystem.

A natural enemy’s effectiveness can be limited by a variety of causes. Pesticide applications can kill natural enemies directly or indirectly by reducing the quantity of or availability of hosts. Plowing and agricultural trash burning are examples of cultural practices that can destroy natural enemies or make the crop habitat unsuitable. Repeated plowing in gardens can cause dust deposits on leaves, killing small predators and parasites and increasing insect and mite infestations.Conservation

Finally, host plant responses such as chemical defenses that are harmful to natural enemies but beneficial to the insect can reduce biological control efficiency. Some pests can retain harmful components from their host plant and use them to defend themselves against their own enemies. Physical properties of the host plant, such as leaf hairiness, may limit the natural enemy’s capacity to identify and attack hosts in other circumstances.

Present Applications in Biological Pest Control Methods

Biological control is an interesting science since new knowledge and approaches are continually available.

Modern Approaches

This method of biological control has adapted itself to commercial development because most augmentation requires mass-production and periodic colonization of natural enemies. Biological control agents for dozens of pests, weeds, and plant pathogens are commercially available.

In contrast to importation and conservation, the fundamental purpose of augmentation is not to make permanent changes in an agro ecosystem to better biological control. Augmentation, on the other hand, aims to adapt natural opponents to fit into established manufacturing processes.

The three main techniques to biological insect control are the importation, augmentation, and conservation of natural enemies. To satisfy the changing needs of pest management, specific techniques within these approaches are constantly being created and altered. More effective augmentation programmes have come from advancements in rearing and release processes, as well as genetic development of natural enemies. The application of modern ecological theory is changing the way we think about natural enemy conservation. The full potential of this biologically based pest management strategy leads to more development and adaption of biological control methodologies and applications.

Present Applications in Biological Pest Control Methods

Related Questions

  1. What are the 4 main methods of biological pest control?

Predators, parasites, parasitoids, and pathogens are the four basic categories of natural enemies of insects and mites, based on how they use their prey or hosts.

  1. What are the types of biological pest control?

Insect-parasitic bacteria, fungus, protozoa, viruses, and nematodes are the most common disease-causing organisms. Microbial control is a term for describing biological control utilizing diseases. The bacterium Bacillus thuringiensis is a well-known commercially accessible microbial control agent.

  1. What is a biological control method?

Biological control is a way of limiting the effects of hazardous animals, pathogens, and plants by employing other useful creatures that inhibit the harmful organisms, such as microbes, insects, and plants.

  1. What is biological control describe types of biological control?

Biological control, or bio-control, is a way of using other organisms to control pests such as insects, mites, weeds, and plant diseases. Predation, parasitism, herbivore, and other natural mechanisms are applicable, although it usually includes direct human management.

  1. What is classical biological pest control?

Classical biological control (CBC) is the introduction of an unusual biological control agent into a pest-infested area for permanent establishment and long-term pest management.

Different Types of Biological Pest Control Methods

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