What is biological control of pest Class 8?

Hint: Using Biological methods for preventing plant pests and diseases is termed Biological control. This is the most effective and the best way to reduce pests naturally. Complete Answer: In biological control living organisms which are natural enemies of the pests are introduced to the plants to control the pests.

What are the benefits of biological control?

Advantages of biological control An effective agent will search out all suitable plants of the weed. Biological control has no adverse effect on human health or the environment. Biological control is self-sustaining.

What is biological method of pest control?

Biological control, biocontrol, or biological pest control is a method of suppressing or controlling the population of undesirable insects, other animals, or plants by the introduction, encouragement, or artificial increase of their natural enemies to economically non–important levels.

What are some of the benefits of the biological control of pests and parasites?

What are the advantages of biological control?

It is usually highly specific to a particular pest.
Although expensive to introduce (mainly due to research costs), it can be very cheap in the long term.
It can provide a long-term solution to a pest problem.
There is no environmental contamination.

What are the merits and demerits of biological control?

Advantages & Disadvantages of Biological Control

Minimized Safety Concerns. Unlike chemical pesticides, biological control agents, also called bioagents, leave behind no long-lasting residues that remain in the environment.
Increased Selectivity.
Cost Considerations.
Dedication of Time.
Skill Level.
New Pests.

What are biocontrol agents and give three examples?

Beneficials and Biocontrol agents – an overview:

Aphidius – parasitoid of aphids.
Cucumeris – predatory mite of thrips.
Encarsia – parasitoid of whitefly.
Entomopathogenis nematodes – insecticidal nematodes which attack a range of insect pests.
Hypoapsis – predatory mite of fungus gnats.

What is an example of a biological control?

Examples of biological control include the destruction of the citrophilus mealybug in California by two parasitic species of chalcid wasps imported from Australia, Coccophagus gurneyi and Tetracnemus pretiosus; the effective predation of an Australian ladybird beetle, or vedalia beetle (Rodolia cardinalis), on the …

Is used in biological pest control?

Biological control involves the mass-production and release of natural enemies such as parasitoids and predators to control pest insects in an environmentally sound manner. Radiation is used to increase the applicability, cost-effectiveness and safety of rearing, shipping and deploying such natural enemies.

What are the advantages and disadvantages of biological control of plant disease?

Let’s Recap:

Pros	Cons
Specific to a particular pest	Can sometimes fail in its specificity
Self-sustaining system	It’s a slow process
Cheap after startup	Expensive at startup
It works most of the time	Doesn’t completely destroy a pest

How is biological pest control used to control pests?

Biological pest control is a method of maintaining pest populations below damaging levels by using living organisms instead of relying completely on chemicals. This method uses natural mechanisms such as herbivory, predation, or parasitism to control weeds, plant diseases, mites, and insects.

How does biological control work in the real world?

When a natural enemy is successfully established it rarely requires additional input and it continues to kill the pest with no direct help from humans and at no cost. Unfortunately, classical biological control does not always work. It is usually most effective against exotic pests and less so against native insect pests.

What are the pros and cons of biological control?

They can also contaminate soil and water. Biological control is a method of controlling pest populations naturally, without the use of toxic chemicals. Instead, biocontrol makes use of natural predators to control pest populations and protect garden plants.

What are the advantages and disadvantages of pest control?

Despite the appealing advantages of biological pest control, there may be important disadvantages to the activity. Artificially increasing the population of a certain predator may have unforeseen consequences.