Sterile Insect Technique
Sterile Insect Technique - Related Videos
08:58
Preparing Irradiated and Marked Male Aedes aegypti Mosquitoes for Release in an Operational Sterile Insect Technique Program
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Cited by 5 •
2021
The sterile insect technique (SIT) is used to control specific, medically important mosquito populations that may be resistant to chemical controls. Here, we describe a method of mass rearing and preparation of sterile male mosquitoes for release in an operational SIT program targeting the Aedes aegypti mosquito.
12:29
Sterile Tissue Harvest
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2016
Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN In 1959 The 3 R's were introduced by W.M.S. Russell and R.L. Burch in their book The Principles of Humane Experimental Technique. The 3 R's are replacement, reduction, and refinement of the use of animals in research. The use of cell lines and tissue cultures that originated from research animals is a replacement technique, as it allows for many experiments to be conducted in vitro. Harvesting...
01:47
Osmoregulation in Insects
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2019
Malpighian tubules are specialized structures found in the digestive systems of many arthropods, including most insects, that handle excretion and osmoregulation. The tubules are typically arranged in pairs and have a convoluted structure that increases their surface area. Malpighian tubules extend from the digestive tract, typically the area between the midgut and hindgut, into the hemolymph—a mixture of blood and interstitial fluid found in insects and other arthropods, as well as most...
03:54
A Technique to Establish a Bacterial Infection Model in Insect Larvae
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2025
This video demonstrates a method to establish a Mycobacterium bovis infection model in the larvae of the greater wax moth, Galleria mellonella. A bioluminescent strain of Mycobacterium bovis BCG is injected into the hemolymph of the larva to establish infection, and the bioluminescence is measured at predefined intervals to study the progress of infection.
12:47
A Technique to Screen American Beech for Resistance to the Beech Scale Insect (Cryptococcus fagisuga Lind.)
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Cited by 8 •
2014
Beech bark disease is initiated by feeding activities of the beech scale insect that create fungal entry points in the bark. Trees that are resistant to the scale insect are also disease resistant. Here we present the protocol we have developed to screen individual beech trees for beech scale resistance.
FAQs
The key population effect occurs when sterile males mate with fertile wild females. Although mating takes place, the resulting eggs do not produce viable offspring, so fewer insects enter the next generation. The impact becomes more significant when sterile males successfully compete for mates, because each unproductive mating reduces the reproductive contribution of the wild population.
The approach targets a particular insect species rather than broadly affecting many organisms. This species-specific action can help limit crop damage while reducing effects on non-target organisms and surrounding ecosystems. Its selectivity is especially relevant in environmental pest management, where preserving ecological functions and avoiding unnecessary disruption are important alongside suppressing the target population.
A single release is not presented as sufficient for sustained suppression. Repeated releases continually add sterile males to the population, maintaining mating competition with fertile wild males over time. This ongoing pressure can progressively reduce population density and supports area-wide control, particularly when management aims to lower pest abundance across an entire designated region.
The process begins by mass-rearing the target insect under controlled conditions. The insects are then sterilized, typically through irradiation, and the sterile males are released into the target area. This sequence links production, sterilization, and deployment into one management program, with repeated releases used when continued population suppression is required.
The Sterile Insect Technique can be incorporated into integrated pest management, where it helps suppress target insects while reducing reliance on conventional insecticides. It is also suited to area-wide control programs that coordinate releases across a defined region. These applications are useful when management goals include lowering pest abundance and limiting chemical residues.
By reducing the number of viable offspring, the technique can lower insect population density and help limit crop damage. Its use may also support ecosystem protection and management of disease-vector insects. Because it does not introduce persistent chemical residues, the approach can contribute to pest control strategies designed to reduce dependence on conventional insecticides.