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Results for “INSECT CONTROL”

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At least 91 records · Page 5Linked to original sources
PubMed1997

[Preliminary evaluation of the incidence and control of insects--pest control in Polish hospitals].

The evaluation of the infestation and methods of insect disease vectors control in 748 hospitals in Poland in the period of 1990 to 1995 were done. The insect species, places of their occurrence and control agents were analysed. Blattella germanica L. occurred most frequently (71% hospitals). Blatta orientalis and Monomorium pharaonis were found in 40% and 17% hospitals respectively. Kitchens, laundries and baths were most infested. Sometimes insects were found also in central sterilization units and operating theaters. Controls of insects in hospitals were performed one to four times a year mostly by spraying with residual formulation. The control agents contained pyrethroids (mostly permethrin, but also deltamethrin and cypermethrin) and carbamates (bendiocarb, propoxur). Baits with hydramethylnon, boric acid, methoprene and chlorpyrifos were used not very often. The authors suggest reduction in using the spraying agents. The baits are recommended because they delay the development of the resistance to pesticides in controlling insect populations and are safer.

Animals↗
PubMed1992

V-ATPase-energized epithelia and biological insect control.

Background is provided for the experimentally detailed contributions concerning the structure, distribution and function of V-ATPase-based ion pumps in insect epithelia. The mode of action of an insecticidal bacterial protein, which is dependent upon the V-ATPase-energized state in larval lepidopteran midgut for activity, is discussed.

Adenosine Triphosphatases↗
PubMed2000

Bacillus thuringiensis and its use in transgenic insect control technologies.

The insecticidal activity of Bacillus thuringiensis (Bt) is mainly due to the production of crystals containing insecticidal crystal proteins (ICPs). These proteins are very selectively active against certain insect species, including some agronomically important pest species. Some ICP genes have been used for bioengineered crop protection, resulting in transgenic crop plants with excellent insect protection.

Bacillus thuringiensis Toxins↗
PubMed1971

Insect control by genetic manipulation of natural populations.

The possible use of chromosome rearrangements is considered as a means for introducing genes into insect populations for their own control. The release of laboratory-constructed strains differing from the field population for a number of chromosome interchanges should create an unstable situation leading to the rapid replacement of the field population. This replacement should allow introduction of genes for insecticide susceptibility, cold sensitivity, or the like. The process would produce sterile hybrids while the genetic displacement occurs which itself will contribute to a reduction in pest numbers.

Animals↗
PubMed2006

Delivery methods for peptide and protein toxins in insect control.

Since the introduction of DDT in the 1940s, arthropod pest control has relied heavily upon chemical insecticides. However, the development of insect resistance, an increased awareness of the real and perceived environmental and health impacts of these chemicals, and the need for systems with a smaller environmental footprint has stimulated the search for new insecticidal compounds, novel molecular targets, and alternative control methods. In recent decades a variety of biocontrol methods employing peptidic or proteinaceous insect-specific toxins derived from microbes, plants and animals have been examined in the laboratory and field with varying results. Among the many interdependent factors involved with the production of a cost-effective pesticide--production expense, kill efficiency, environmental persistence, pest-specificity, pest resistance-development, public perception and ease of delivery--sprayable biopesticides have not yet found equal competitive footing with chemical counterparts. However, while protein/peptide-based biopesticides continue to have limitations, advances in the technology, particularly of genetically modified organisms as biopesticidal delivery systems, has continually progressed. This review highlights the varieties of delivery methods currently practiced, examining the strengths and weaknesses of each method.

Agriculture↗