What is pest resurgence?

Pest resurgence is observed when pests previously targeted and successfully controlled by pesticide recur, but in higher numbers than they did before. The reason for this is the removal of predators together with pests. They either die from the pesticide, or move away because their food source has disappeared.

1. What is pest resurgence and how does it occur?
2. What is pest outbreak?
3. What is pest mitigation?
4. What does pest status mean?
5. What is Antixenosis and Antibiosis?
6. What causes pest outbreaks?
7. What is ETL and EIL?
8. What is pest monitoring?
9. What are the 3 methods of pest control?
10. How long do pesticides last in house?
11. How long does pest control last?
12. What is the most common method of pest control?
13. What are some examples of pest?
14. What are secondary pests?
15. How many types of pest are there?

What is pest resurgence and how does it occur?

Insect and mite pest resurgence occurs when an insecticide or acaricide treatment destroys the pest population and kills, repels, irritates or otherwise deters the natural enemies of the pest. ... A dose-response phenomenon called hormesis can occur in pest populations exposed to sublethal doses of pesticides.

What is pest outbreak?

Introduction: - Pest outbreak means, any organism which is economically harmful to human being and increases. its population more than the ETL value (economic threshold level). Or a sudden increase in the population of the. harmful organism is called pest outbreak.

What is pest mitigation?

Pest control is the regulation or management of a species defined as a pest, a member of the animal kingdom that impacts adversely on human activities. ... Ploughing and cultivation of the soil before sowing mitigate the pest burden and there is a modern trend to limit the use of pesticides as far as possible.

What does pest status mean?

Pest status is usually associated with a real or perceived medical threat, a persistent nuisance, or on economic loss. The majority of arthropods in this environment qualify for one or more of these categories. Pest status may change with the abundance of the pest species.

What is Antixenosis and Antibiosis?

Antixenosis operates by disrupting normal arthropod behavior, whereas antibiosis adversely affects a pest's physiological processes, thereby impairing arthropod survival, growth, development, and behavior. Antixenosis and antibiosis involve both plant and arthropod characteristics.

What causes pest outbreaks?

Destruction of forest or bringing forest area under cultivation – shift to cultivated crops. (eg) Hairy caterpillar attack on crop plants near forest areas. Indiscriminate use of pesticides leads to destruction of natural enemies, pest resistance,pest resurgence.

What is ETL and EIL?

The economic threshold Level (ETL) is the population density at which control measures should be determined to prevent an increasing pest population from reaching the Economic injury level (Fig. 2). EIL is the lowest pest population which will cause economic damage.

What is pest monitoring?

Refers to the constant watch on the population dynamics of pests, its incidence and damage on each crop at fixed intervals to forewarn the farmers to take up timely crop protection measures.

What are the 3 methods of pest control?

As mentioned above, there are many pest control methods available to choose from, but they can be loosely grouped into six categories: Hygienic, Biological, Chemical, Physical, Fumigation, Fogging and Heat treatment.

How long do pesticides last in house?

Pesticide half-lives can be lumped into three groups in order to estimate persistence. These are low (less than 16 day half-life), moderate (16 to 59 days), and high (over 60 days). Pesticides with shorter half-lives tend to build up less because they are much less likely to persist in the environment.

How long does pest control last?

How Long Should Pest Control Last? The strongest products on the market last 60-90 days. After that, they biodegrade and become a part of the natural environment; otherwise, they wouldn't be registered with the Environmental Protection Agency (EPA).

What is the most common method of pest control?

Chemical Control. The most common method of pest control is the use of pesticides—chemicals that either kill pests or inhibit their development. Pesticides are often classified according to the pest they are intended to control.

What are some examples of pest?

What are pests? A pest is any organism that spreads disease, causes destruction or is otherwise a nuisance. Some examples of pests are mosquitoes, rodents, and weeds.

What are secondary pests?

Abstract. Secondary pest outbreaks occur when the use of a pesticide to reduce densities of an unwanted target pest species triggers subsequent outbreaks of other pest species.

How many types of pest are there?

There are approximately 70 000 pest species and diseases that damage agricultural crops worldwide (Pimentel, 2009).