What is Autocidal control?
Definition of autocidal : controlling or eradicating populations of noxious insects (such as the screwworm) by reducing their capacity to produce viable or fertile offspring (as by the introduction of sterile males) autocidal procedures autocidal effects.
What is male sterile technique?
The SIT involves mass breeding huge quantities of target insects in a “factory” and sterilizing the males by exposing them to low doses of radiation. These sterile male flies are then released by air over infested areas, where they mate with wild females.
How do you sterilize insects?
Exposing the insects to ionizing radiation is the current method of choice, when it comes to sterilizing insects so they may no longer produce. Isotopic sources such as cobalt-60 or cesium-137 are used to produce gamma radiation for sterilizing the insects.
Who is called Father of male sterility technique?
The idea of using sterile males was first written about by the Russian geneticist A.S. Serebrovsky in 1940 but the English speaking world came up with the idea independently and applied it practically around the 1950s.
What are sterilized insects?
The principle of the technique is to introduce sterility by rearing large numbers of the target pest, reproductively sterilize them, and release them into the wild. When the sterile males mate with wild females, the females produce no viable offspring.
Why is sterile insect technique important?
The sterile insect technique (SIT) is a control strategy that uses radiation to produce genetic mutations or chromosomal breaks to generate sterile adult insects. These sterile insects are released into the wild to suppress and eventually eradicate wild pest populations (reviewed in Reichard, 2002).
What is the process of sterilization?
Sterilization can be achieved through various means, including heat, chemicals, irradiation, high pressure, and filtration. Sterilization is distinct from disinfection, sanitization, and pasteurization, in that those methods reduce rather than eliminate all forms of life and biological agents present.
How do they sterilize mosquitoes?
How scientists irradiate mosquitoes. Large numbers of mosquitoes are raised in a lab. Male mosquito pupae are separated from female pupae. Males are irradiated, using ionizing radiation, to make them sterile.
What is meant by CMS line?
Three-line system, which is composed by three different breeding lines: the cytoplasmic male sterility (CMS) line (A line), the maintainer line (B line), and the restorer line (R line), is a main system in hybrid rice production.
What is SIT for mosquito?
The Sterile Insect Technique (SIT) is a form of insect birth control. The process involves rearing large quantities of sterilized male mosquitoes in dedicated facilities, and then releasing them to mate with females in the wild. As they do not produce any offspring, the insect population declines over time.
What are the 5 methods of sterilization?
Sterilization can be achieved by a combination of heat, chemicals, irradiation, high pressure and filtration like steam under pressure, dry heat, ultraviolet radiation, gas vapor sterilants, chlorine dioxide gas etc.