Termite resistance of wood–plastic composites treated with zinc borate and borax

López-Naranjo, Edgar J.; Alzate‐Gaviria, Liliana; Hernández-Zárate, Galdy; Reyes-Trujeque, Javier; Cruz-Estrada, Ricardo Herbé

doi:10.1177/0892705714563343

Cited by 5 publications

(8 citation statements)

References 17 publications

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“…Concentrations of ≥2.25% boric acid in a 10% sucrose solution were shown to deter feeding in house flies (Hogsette and Koehler 1994) and ≥ 6.25% boric acid in dry-mixed and wet-mixed baits deterred German cockroaches from feeding (Strong et al 1993). Deterrence of boric acid at high concentrations has prompted the use of borates to protect and preserve wood against termites (Kartal 2010, Han et al 2012, Lopez-Naranjo et al 2016) and wood-boring beetles (Robinson 1967, French 1969, Palanti et al 2012.…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of Boric Acid by Ingestion, But Not by Contact, Against the Common Bed Bug (Hemiptera: Cimicidae)

Sierras

Wada‐Katsumata

Schal

2018

Journal of Economic Entomology

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Boric acid has been used as an insecticide in the successful control of agricultural, public health and urban pests long before the advent of synthetic organic pesticides. Boric acid products, formulated as dusts, sprays, granular baits, pastes, gels, and liquids, are widely available to consumers and pest management professionals, especially to control pest infestations within homes. Boric acid dust is commonly used against bed bugs (Cimex lectularius L. [Hemiptera: Cimicidae]), but its efficacy has not been demonstrated. We evaluated the efficacy of boric acid as an ingestible and residual contact insecticide on bed bugs, and compared its efficacy on the German cockroach (Blattella germanica L. [Blattodea: Ectobiidae]) which is known to be susceptible to boric acid by both routes. Dose-response studies of 0-5% boric acid in blood demonstrated that ingested boric acid caused rapid mortality at concentrations of ≥2%, and even 0.5% and 1% boric acid caused 100% mortality, albeit at a slower time course. In contrast, bed bugs survived contact with high concentrations of boric acid dust. Smaller boric acid particles did not increase mortality of either unfed or recently fed bed bugs. The same boric acid products were effective at causing mortality of German cockroaches by both contact and ingestion. We thus conclude that although boric acid is an excellent candidate active ingredient for an ingestible bait formulation, residual applications of dust or spray would be ineffective in bed bug interventions.

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Section: Discussionmentioning

confidence: 99%

Effectiveness of Boric Acid by Ingestion, But Not by Contact, Against the Common Bed Bug (Hemiptera: Cimicidae)

Sierras

Wada‐Katsumata

Schal

2018

Journal of Economic Entomology

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“…The treated wood samples were air-dried and implanted in termiteinfested areas (Lahmar region, southwest of Algeria). They were exposed to termite attacks for four weeks (López-Naranjo et al, 2014), then collected, cleaned, dried, and weighed to determine the weight loss (Figures 1 and 2).…”

Section: Repellent Test (Weight Loss)mentioning

confidence: 99%

Efficacy of Anti-termite Extracts from Four Saharan Plants against the Harvester Termite, Anacanthotermes ochraceus

Mahmoudi¹,

Cheriti²,

Benkeblia³

et al. 2021

JTAS

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This study aimed to examine the anti-termite potential of four Saharan plant extracts, namely, the apple of Sodom or rubber bush, Calotropis procera; pergularia, Pergularia tomentosa; jimsonweed, Datura stramonium, and Egyptian henbane, Hyoscyamus muticus from Bechar (southwest of Algeria) on workers of the harvester termite, Anacanthotermes ochraceus (Isoptera: Hodotermitidae). A direct contact application test was conducted with five fractions from aqueous extracts of each part of plant species (leaves, stems) using hexane, dichloromethane, ethyl acetate, butanol, and exhausted fraction. A repellent test was realized with aqueous extracts (10%) of plant species leaves and stems. According to the direct contact application test, all tested plants fractions showed termiticidal activities with different degrees. Butanolic fractions presented the best effects from leaves of C. procera and P. tomentosa with median lethal time (LT50) = 231.03 and 244.96 min, respectively. In the second test, wood samples were exposed to termite attack for four weeks, and the weight loss percentage was determined. The weight loss ranged from 0.034 to 16.90% at concentrations of 10% of plant extracts. The best repellent effect was obtained from leaves of C. procera (weight loss = 0.034%) and leaves of D. stramonium (weight loss = 1.29%). It was concluded that some Saharan plants are a good source of anti-termite compounds, especially C. procera.

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“…[8][9][10][11][12] Environmental factors include biotic factors such as insects, fungi, and bacterial activity, as well as abiotic factors like temperature, humidity, and sunlight, among others. 13,14 One of the main advantages of WPC over wood is its increased resistance to biotic factors due to the partial or total encapsulation of the dispersed phase (i.e., wood flour particles) by a polymeric matrix. 9,10 The degradation of WPC generally begins when abiotic factors cause the initial breakdown of the polymeric matrix, leading to microcracks on the surface that exposes the dispersed phase to both biotic 15,16 and abiotic factors.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have investigated the resistance of WPC to termite attack. [8][9][10][11][12][13]20,21 Some of these studies have focused on determining the weight loss of materials due to termite activity, as well as its relationship with termite mortality and its effects on physical, mechanical, and chemical properties. [1][2][3]6 Other works have explored the impact of weathering and termite attack on the properties of exposed WPC.…”

Section: Introductionmentioning

confidence: 99%

Effect of teak wood on recycled HDPE/pine wood composites subjected to termite attack and accelerated weathering

Cruz-Estrada,

Guillén-Mallette,

López-Naranjo

et al. 2023

Journal of Thermoplastic Composite Materials

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This study aimed to investigate the impact of including teak wood in recycled high-density polyethylene wood plastic composites (WPC) with pine wood on their resistance to degradation caused by termite attack and accelerated weathering. A 23 factorial experimental design was conducted with three repetitions in the center to analyze the weight loss and termite mortality during the experiments. The factors studied were the days of exposure to accelerated weathering, days of exposure to termite attack, and the concentration of teak wood in the composite. Surface characterizations (SEM and FTIR) were carried out to analyze the exposed surfaces and determine the chemical modification of the composite components. The results showed that the WPC manufacturing process promotes a heterogeneous distribution of the wood particles, being greater within the center of the samples than on the surface. Specimens exposed to both accelerated weathering and termite attack resulted in a certain weight loss and termite mortality, depending on the material, conditions of exposure, and the content of teak wood in the WPC. When those compounds were subjected to accelerated weathering followed by termite attack they exhibited a higher termite attack. The presence of teak wood in the WPC produced a reduction in the effects of termite attack and accelerated weathering on weight loss and an increase in termite mortality compared to the WPC with only pine wood, as teak wood contains extractables with termiticidal action. The lowest value of weight loss (0.06%) was observed for the WPC with the highest amount of teak wood with termite attack, resulting in a termite mortality rate of 100% after 17 days of exposure.

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Termite resistance of wood–plastic composites treated with zinc borate and borax

Cited by 5 publications

References 17 publications

Effectiveness of Boric Acid by Ingestion, But Not by Contact, Against the Common Bed Bug (Hemiptera: Cimicidae)

Effectiveness of Boric Acid by Ingestion, But Not by Contact, Against the Common Bed Bug (Hemiptera: Cimicidae)

Efficacy of Anti-termite Extracts from Four Saharan Plants against the Harvester Termite, Anacanthotermes ochraceus

Effect of teak wood on recycled HDPE/pine wood composites subjected to termite attack and accelerated weathering

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