Oral Toxicity of a Boric Acid - Sucrose Water Bait to Florida Carpenter Ants (Hymenoptera: Formicidae)

1996 ◽  
Vol 31 (1) ◽  
pp. 9-12 ◽  
Author(s):  
John H. Klotz ◽  
James I. Moss
Keyword(s):  
Boric Acid ◽  
Laboratory Tests ◽  
Oral Toxicity ◽  
Solubility In Water ◽  
Dosage Range ◽  
Carpenter Ants ◽  
Carpenter Ant ◽  
Water Based

The oral toxicity of boric acid to the Florida carpenter ant, Camponotus abdominalis floridanus (Buckley), was evaluated in laboratory tests. The ants were provided a sucrose water-based bait containing various concentrations of boric acid. Over the dosage range from 0.02 M (0.13% w/v) to 0.50 M (3.13% w/v) boric acid, median lethal times (LT50s) (95% CL) ranged from 9.7 (8.1–13.3) days to 1.5 (1.2–1.7) days. Over the same dosage range (0.02 M to 0.50 M), LT90s (95% CL) ranged from 27.1 (18.0–59.5) days to 4.2 (3.6–5.1) days. Some of the advantages of using boric acid as a bait toxicant for ants include its delayed activity and its solubility in water.

scholarly journals Effect of boric acid on poly vinyl alcohol- tannin blend and its application as water-based wood adhesive

2020 ◽  
Vol 23 (1) ◽  
pp. 188-196
Author(s):  
Ravindra V. Gadhave ◽  
Vineeth S.K. ◽  
Pritam V. Dhawale ◽  
Pradeep T. Gadekar
Keyword(s):  
Boric Acid ◽  
Vinyl Alcohol ◽  
Wood Adhesive ◽  
Poly Vinyl Alcohol ◽  
Water Based

Ecotoxicity of boric acid in standard laboratory tests with plants and soil organisms

Ecotoxicology ◽  
2017 ◽  
Vol 26 (4) ◽  
pp. 471-481 ◽  
Author(s):  
Juliska Princz ◽  
Leonie Becker ◽  
Adam Scheffczyk ◽  
Gladys Stephenson ◽  
Rick Scroggins ◽  
...  
Keyword(s):  
Boric Acid ◽  
Laboratory Tests ◽  
Standard Laboratory ◽  
Soil Organisms

Painting of Arc Sprayed Zinc Coatings with Water-Based Paints

2000 ◽  
Author(s):  
R.T. Lahtinen ◽  
P.J.T. Jokinen
Keyword(s):  
Laboratory Tests ◽  
Atmospheric Corrosion ◽  
Zinc Coating ◽  
Field Tests ◽  
Steel Structures ◽  
Coating Process ◽  
Paint Systems ◽  
Large Steel ◽  
Water Based ◽  
Zinc Coatings

Abstract Hot dip galvanized zinc coatings on steel structures are known to have superior atmospheric corrosion resistance properties compared to painted structures. However, the zinc coating can not be applied by this method on large steel structures. The protection of large steel structures against atmospheric corrosion is traditionally done by painting. The environmental pressure to eliminate solvent based paints has forced the painting contractors to move towards water based paints or completely rethink the coating process. One solution to this problem is to use arc sprayed zinc as the "primer" and water based paints as a sealer and a top coat. The research and field tests conducted and supervised by VTT has produced promising results that are described in the paper. The possibility to apply water based paints directly over the arc sprayed zinc is discussed and results of field and laboratory tests are given. The economic aspects of both water based and traditional paint systems over the arc sprayed zinc are discussed in the paper.

scholarly journals Laboratory tests of 5-p-chlorophenyl silatrane as a rodenticide

1974 ◽  
Vol 73 (1) ◽  
pp. 39-43 ◽  
Author(s):  
J. H. Greaves ◽  
R. Redfern ◽  
H. Tinworth
Keyword(s):  
Mus Musculus ◽  
Rattus Norvegicus ◽  
Laboratory Tests ◽  
Field Conditions ◽  
Oral Toxicity ◽  
Stomach Tube ◽  
Wild Mice ◽  
Laboratory Rats ◽  
Wild Rats ◽  
Rats And Mice

SUMMARYThe properties of 5-p-chlorophenyl silatrane as a rodenticide against Rattus norvegicus and Mus musculus were investigated in the laboratory. The high oral toxicity of the compound was confirmed. When the compound was given to laboratory rats and mice by stomach tube at lethal dosages, signs of poisoning were observed within a minute. When caged wild rats and mice were given a choice between plain and poisoned baits the optimum rodenticidal concentration in the bait was about 0.5% for both species, producing 50% mortality in wild rats and 95% mortality in wild mice. The results are discussed in relation to safety in use and the probable effectiveness of the compound as a rodenticide in field conditions.

scholarly journals Space, Habitat and Isolation are the Key Determinants of Tree Colonization by the Carpenter Ant in Plantation Forests

Forests ◽  
2019 ◽  
Vol 10 (8) ◽  
pp. 630 ◽  
Author(s):  
Adam Véle ◽  
Jakub Horák
Keyword(s):  
Norway Spruce ◽  
Ad Hoc ◽  
Spatial Scales ◽  
Brown Rot ◽  
Forest Plantations ◽  
Ant Nests ◽  
Real Nature ◽  
Carpenter Ants ◽  
Carpenter Ant ◽  
Coniferous Plantation

Forest plantations are still often considered the antithesis of real nature. However, plantations can host many organisms. The problem is that some of the hosted species are regarded ad hoc as pests. The main aim of our paper was to study the carpenter ant (Camponotus ligniperdus) in windstorm habitats. We studied forests in East Bohemia, Czech Republic, and focused on the spatial distribution of snapped trees and the influence of selected forest characteristics on the incidence of ant nests. We found that the nests in the study area mainly occurred in Norway spruce, which is the most commercially important tree in the majority of Central Europe. More than one quarter of the snapped trees were inhabited by the ants. We found that nests exhibited a spatially autocorrelated pattern that differed on spatial scales. The most important characteristic of the host tree for determining carpenter ant nests was the presence of brown rot, and the majority of tree nests were isolated from forest openings. The presence of carpenter ants in forest plantations is, therefore, not harmful. Their presence could be used by forest managers as an indication of unsuitable stand conditions for the successful growth of the Norway spruce and other coniferous plantation trees.

The Biology of Carpenter Ants in New Brunswick

1964 ◽  
Vol 96 (6) ◽  
pp. 894-909 ◽  
Author(s):  
C. J. Sanders
Keyword(s):  
Life Cycle ◽  
New Brunswick ◽  
Forest Floor ◽  
Wood Chips ◽  
Balsam Fir ◽  
Carpenter Ants ◽  
Carpenter Ant ◽  
Eastern White Cedar ◽  
Cycle Covers ◽  
Frequency Curves

AbstractThirty-five colonies of three species of carpenter ant were examined: 25 of Camponotus herculeanus, 9 of C. noveboracensis, and 1 of C. pennsylvanicus. Workings were examined in about 150 trees. No major differences were noticed in the biology of the first two species.All individuals were taken from two overwintering, torpid, C. herculeanus colonies; the larger contained 6,000 workers, 550 winged forms, and 6,500 larvae. Larvae were of two sizes and it is thought that the life cycle covers two years in New Brunswick. Frequency curves of worker head widths show that there are majors and minors, the minors being more numerous, especially in small colonies.Each colony typically occupied several trees, only one of which contained the brood; the others had less extensive workings. Entrances were underground and led to tunnels connecting the trees within each colony. Surplus wood chips were buried in the ground. Ant activity in the tunnels was continuous through the day and night; few ants were seen on the forest floor.Woodpeckers are important enemies and had attacked one third of the brood trees.The workings frequently assist wind breakage and damage butt logs. From the roots they extend to a height of 4-6 ft., occasionally higher. 1% of the spruce, and 2-4% of the balsam fir examined had been attacked. This may lead to loss of 10% of merchantable volume, and possibly a higher figure for eastern white cedar.

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