Boric acid-based baits against pharaoh ants

2021 ◽  
pp. 41-47
Author(s):  
Olga Yurevna Eremina ◽  
◽  
Veronika Valentinovna Olifer ◽  
Keyword(s):  
Boric Acid ◽  
Mechanism Of Action ◽  
Sodium Tetraborate ◽  
Ant Colonies ◽  
Laboratory Conditions ◽  
Food Attractants

For control of the Pharaoh ant, liquid baits based on 5–6 % boric acid or sodium tetraborate, with a high content of food attractant and an agent that prevents drying, are effective. The death of workers, queens and brood occurs within 2–4 weeks. In laboratory conditions, when colonies of the Pharaoh ant feed with such baits, depletion of the colony was noted by the 4th week of the experiment (death of queen was 75–100 %, and critical decrease in the number of live workers and brood was occured). Dry boric baits do not significantly affect the viability of ant colonies. Solutions of sodium tetraborate in glycerol are ineffective due to the lack of food attractants, the death of workers is comparable to that obtained in the variant with starving control. The mechanism of action and sterilizing properties of boric acid and sodium tetraborate for insects are discussed.

Validation of the method for evaluating the efficacy of food baits against pharaoh ant colonies

2021 ◽  
pp. 24-32
Author(s):  
Olga Yurevna Eremina ◽  
◽  
Veronika Valentinovna Olifer ◽  
Keyword(s):  
Boric Acid ◽  
Growth Regulators ◽  
Sodium Tetraborate ◽  
Active Ingredients ◽  
Boron Compounds ◽  
Insect Growth Regulators ◽  
Ant Colonies ◽  
Insect Growth ◽  
Chemical Groups

The validation of the method for testing the effectiveness of food baits against colonies of the Pharaoh ant using experiments with commercially produced and laboratory-prepared sugar baits containing insecticides from different chemical groups was carried out. We studied baits based on boron compounds (boric acid and sodium tetraborate), neonicotinoids (thiamethoxam, imidacloprid, and acetamiprid), oxadiazines (indoxacarb), phenylpyrazoles (fipronil), carbamates (methomyl), pyrroles (chlorfenapyr) amidinohydrazones (hydramethylnon), avermectins (abamectin), and insect growth regulators (pyriproxyfen). The proposed algorithm for conducting experiments covers the whole variety of active ingredients of insecticides used in baits. The verification of several dozen products intended for the elimination of colonies of the Pharaoh ant has shown that most of the products are suitable for the requirements for efficacy indices. Keywords: Pharaoh ant, insecticidal baits.

scholarly journals IDENTIFIKASI KANDUNGAN BORAKS PADA BAKSO DI KABUPATEN BULUKUMBA

2019 ◽  
Vol 4 (1) ◽  
pp. 1-10
Author(s):  
Arfiani Nur ◽  
Artati
Keyword(s):  
Experimental Study ◽  
Boric Acid ◽  
Chemical Compound ◽  
Test Methods ◽  
Sodium Tetraborate ◽  
Food Ingredients ◽  
Qualitative Test

Abstrack The background of this research is that Borax is a chemical compound called sodium tetraborate (NaB407 10 H20). If dissolved in water it will become hydroxide and boric acid (H3B03). Borax is often misused as an additional ingredient not permitted in foods that are adapted to Permenkes RI No. 1168 / Menkes / Per / X / 1999 concerning food ingredients. The purpose of this study was to determine the content of borax in meatballs in the district of Bulukumba. This type of research is a laboratory experimental study using qualitative test methods. The sample of this study was that curcumin paper did not produce changes in color on curcumin paper, the color of curcumin paper remained yellow indicating that the sample did not contain hazardous borax.

Boric acid and acetate anion binding to subclass B3 metallo-β-lactamase BJP-1 provides clues for mechanism of action and inhibitor design

2018 ◽  
Vol 470 ◽  
pp. 331-341
Author(s):  
Flavio Di Pisa ◽  
Cecilia Pozzi ◽  
Manuela Benvenuti ◽  
Jean-Denis Docquier ◽  
Filomena De Luca ◽  
...  
Keyword(s):  
Boric Acid ◽  
Mechanism Of Action ◽  
Anion Binding ◽  
Acetate Anion ◽  
Inhibitor Design

Isolation of an extremely boron-tolerant strain of Bacillus firmus

2012 ◽  
Vol 58 (6) ◽  
pp. 811-814 ◽  
Author(s):  
Matthew F. Verce ◽  
Amanda R. Stiles ◽  
Karen C. Chong ◽  
Norman Terry
Keyword(s):  
Boric Acid ◽  
Sodium Tetraborate ◽  
Growth Media ◽  
Bacillus Firmus ◽  
Tolerant Strain

A strain of Bacillus firmus (designated strain KC) isolated from a boron (B) mine in California exhibited extreme tolerance to B, provided it was first acclimated at intermediate B supply concentrations. Strain KC tolerated up to 1000 mmol/L B (boric acid-B) and 1800 mmol/L B (sodium tetraborate-B), and attained the greatest growth (as measured by absorbance) at 300 mmol/L B. Despite its extreme tolerance to high B, there was no evidence that it was able to remove significant quantities of B from the growth media, suggesting that strain KC is not likely to be useful for the removal of B from wastewaters in an engineered bioreactor.

Osmotic and activity coefficients of some simple borates in aqueous solution at 25°

1969 ◽  
Vol 47 (12) ◽  
pp. 2271-2273 ◽  
Author(s):  
R. F. Platford
Keyword(s):  
Boric Acid ◽  
Activity Coefficients ◽  
Solubility Limit ◽  
Sodium Tetraborate ◽  
Sodium Metaborate ◽  
Partial Association ◽  
The Mean ◽  
Vapor Pressure Measurements ◽  
Mean Activity Coefficients ◽  
Osmotic Behavior

Activity coefficients for sodium tetraborate, potassium tetraborate, sodium metaborate, sodium fluoroborate, and orthoboric acid were derived from isopiestic vapor pressure measurements. The osmotic behavior of sodium tetraborate, at concentrations up to its solubility limit, was the same as that of the more soluble potassium salt. The mean activity coefficients of both tetraborates were quite low: 0.355 at 0.1 m; the activity coefficients of sodium metaborate and fluoroborate were less than those of sodium chloride, indicating partial association in solution.The boric acid results were not very reliable because boric acid apparently volatilized during the measurements, but the results obtained indicated that it behaves like a non-electrolyte at all concentrations up to saturation, with an activity coefficient never less than 0.92.

scholarly journals Identifikasi Kandungan Boraks Pada Bakso Di Kabupaten Bulukumba

2019 ◽  
Vol 4 (1) ◽  
pp. 1-10
Author(s):  
Arfiani Nur ◽  
Artati
Keyword(s):  
Experimental Study ◽  
Boric Acid ◽  
Chemical Compound ◽  
Test Methods ◽  
Sodium Tetraborate ◽  
Food Ingredients ◽  
Qualitative Test

The background of this research is that Borax is a chemical compound called sodium tetraborate (NaB407 10 H20). If dissolved in water it will become hydroxide and boric acid (H3B03). Borax is often misused as an additional ingredient not permitted in foods that are adapted to Permenkes RI No. 1168 / Menkes / Per / X / 1999 concerning food ingredients. The purpose of this study was to determine the content of borax in meatballs in the district of Bulukumba. This type of research is a laboratory experimental study using qualitative test methods. The sample of this study was that curcumin paper did not produce changes in color on curcumin paper, the color of curcumin paper remained yellow indicating that the sample did not contain hazardous borax.

Mechanism of Action of Potent Boron-Containing Antifungals

2020 ◽  
Vol 16 (5) ◽  
pp. 552-556
Author(s):  
Costa Arvanitis ◽  
Trevor Rook ◽  
Ian Macreadie
Keyword(s):  
Boric Acid ◽  
Mechanism Of Action ◽  
Boronic Acids ◽  
Boron Compounds ◽  
Inhibit Protein Synthesis ◽  
Trade Name ◽  
Antifungal Action ◽  
Underlying Mechanisms ◽  
Rate Limiting ◽  
Fungistatic Effect

Background: Boron is unusual to organic chemists, yet boron interacts greatly with organic biochemicals and has considerable bioactivity, especially as an antifungal and insecticide. The bestknown bioactive boron compounds are boric acid, its salt borax, and the closely related boronic acids. A newcomer is tavaborole (trade name Kerydin), recently developed and approved in 2014 for topical treatment of onychomycosis, a fungal infection of nails and the nail bed. It is timely to review the literature and explore the way in which these compounds may work. Methods: The focus of this review is to examine peer-reviewed literature relating to boric acid, boronic acid and tavaborole, the most bioactive boron-containing compounds, and the evidence for their proposed mechanism of antifungal action. In parallel with the literature, we have examined the fungistatic effects of boric acid on yeast. Results: All three compounds are reported to inhibit protein synthesis but their mechanism of action may differ. Chemistry studies indicate an interaction of boric acid with ribose and ribose-containing moieties such as NAD. In this review, we discuss the activity of boric acid and use both tavaborole and the boronic acids to exemplify the similar underlying mechanisms used. As there is a push to develop new antimicrobials, we demonstrate that boric acid’s fungistatic effect is alleviated with ribose, NAD and tryptophan. Conclusion: We speculate that boric acid inhibits yeast growth by disrupting tryptophan synthesis as well as downstream NAD, a rate limiting co-enzyme, essential for cellular function.

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