Inert dust insecticides: Part I. Mechanism of action

Alexander, Peter; Kitchener, J. A.; Briscoe, H. V. A.

doi:10.1111/j.1744-7348.1944.tb06225.x

Cited by 80 publications

(27 citation statements)

References 10 publications

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“…Alexander et al [13] showed that the mode of action for inert dust insecticides was independent of chemical reactivity. We have previously shown that concrobium dust causes mortality in Reticulitermes flavipes [14].…”

Section: Introductionmentioning

confidence: 99%

The role of particle size of particulate nano-zinc oxide wood preservatives on termite mortality and leach resistance

et al. 2011

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Historically most residential wood preservatives were aqueous soluble metal formulations, but recently metals ground to submicron size and dispersed in water to give particulate formulations have gained importance. In this study, the specific role nano-zinc oxide (ZnO) particle size and leach resistance plays in termite mortality resulting from exposure to particulate ZnO-treated wood was investigated. Southern yellow pine (SYP) sapwood impregnated with three concentrations of two particle sizes (30 and 70 nm) of ZnO were compared to wood treated with soluble zinc sulphate (ZnSO4) preservative for leach resistance and termite resistance. Less than four percent leached from the particulate nano-ZnO-treated specimens, while 13 to 25% of the zinc sulphate leached from the soluble treated wood. Nano-ZnO was essentially non-leachable from wood treated with 5% formulation for the 30-nm particle size. In a no-choice laboratory test, eastern subterranean termites (Reticulitermes flavipes) consumed less than 10% of the leached nano-ZnO-treated wood with 93 to 100% mortality in all treatment concentrations. In contrast, termites consumed 10 to 12% of the leached ZnSO4-treated wood, but with lower mortality: 29% in the 1% treatment group and less than 10% (5 and 8%, respectively) in the group of wood blocks treated with 2.5 and 5.0% ZnSO4. We conclude that termites were repelled from consuming wood treated with nano-ZnO, but when consumed it was more toxic to eastern subterranean termites than wood treated with the soluble metal oxide formulation. There were no differences in leaching or termite mortality between the two particle sizes of nano-ZnO.

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Section: Introductionmentioning

confidence: 99%

The role of particle size of particulate nano-zinc oxide wood preservatives on termite mortality and leach resistance

et al. 2011

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“…Mineral particles have been studied for insecticide action (Alexander et al 1944;David and Gardiner 1950) and for effects on fungal infection (Farmer 1993). New forms of hydrophobic mineral particles were discovered to deter feeding of fruit-damaging insects such as pear psylla (Cacopsylla pyricola Foerster) (Glenn et al 1999;Puterka et al 2000).…”

Section: Mots Clésmentioning

confidence: 99%

Response of bean to applications of hydrophobic mineral particles

Tworkoski¹,

Glenn²,

Puterka³

2002

Can. J. Plant Sci.

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Tworkoski, T. J., Glenn, D. M. and Puterka, G. J. 2002. Response of bean to applications of hydrophobic mineral particles. Can. J. Plant Sci. 82: 217-219. Foliar applications of hydrophobic mineral particles can protect plants from some insects, but plant response to particle applications is not known. Bean (Phaseolus vulgaris L.) plants were grown for 8 wk in a greenhouse and the shoots were sprayed weekly with small-diameter hydrophobic mineral particles. Photosynthesis was similar in particle-treated and control bean plants over a photosynthetic photon flux (PPF) range from 0 to 1548 µmol m -2 s -1 . The shoot-to-root dry weight ratio was 56% greater and pod weight was 20% lower in particle-treated plants than control plants, suggesting that particle films may alter dry weight partitioning of plants. In bean, particle residues of 2.71 mg cm -2 leaf area altered plant development without affecting photosynthesis. Le ratio entre le poids sec des pousses et des racines avait augmenté de 56 % et les gousses étaient 20 % plus légères chez les plants traités, comparativement aux plants témoins, signe que les particules pourraient modifier la répartition du poids sec chez la plante. Des résidus de particules de 2,71 mg cm -2 de surface foliaire affectent le développement du haricot sans modifier la photosynthèse.

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“…Insect mortality is induced primarily as a result of water loss (1) (Alexander et al, 1944a(Alexander et al, , 1944b) and absorption of waxy layer from insect's cuticle (silica gels and diatomaceous earth containing amorphous silicon dioxide). Other possible causes are blocking the spiracles and causing insects to die from asphyxiation and ingestion of the dust particles causing the gut destruction (Ebeling, 1971;Maceljski and Korunic, 1972;Le Patourel, 1986).…”

Section: Introductionmentioning

confidence: 99%

LABORATORY TESTS ON INSECTICIDAL EFFECTIVENESS OF DISODIUM OCTABORATE TETRAHYDRATE, DIATOMACEOUS EARTH AND AMORPHOUS SILICA GEL AGAINST Sitophilus oryzae (L.) AND THEIR EFFECT ON WHEAT BULK DENSITY

Korunić¹,

Rozman

Liška

et al. 2017

Poljoprivreda

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Laboratory tests on insecticidal effectiveness of disodium octaborate tetrahydrate, diatomaceous earth and amorphous silica gel against Sitophilus oryzae (L.) and their effect on wheat bulk densityLaboratorijska testiranja insekticidne učinkovitosti dinatrijevog oktaborat tetrahidrata, dijatomejske zemlje i amorfnoga silika gela na Sitophilus oryzae (L.) te njihov utjecaj na hektolitarsku masu pšenice Korunić, Z., Rozman, V., Liška, A., Lucić, P. Original scientific paper Izvorni znanstveni članak SUMMARY We examined insecticide effectiveness of three different inert dusts: disodium octaborate tetrahydrate (DOT) and diatomaceous earth (DE) Celatom ® Mn 51 applied as powder and suspension, and silica gel Sipernat® 50 S applied as powder against Sitophilus oryzae (L.) and their reduction of grain bulk density. Sipernat ® 50 S was the most effective dust with a very fast initial effectiveness. DE and DOT generated similar effectiveness against S. oryzae. DOT generated low initial effectiveness but after prolonged exposure time of 8 and especially after 21 days, the mortality was very high (100%), similar to the effectiveness of DE. The similar order of dusts was obtained in the reduction of wheat bulk density. Applied at dose of 200 and 500 ppm, the lowest bulk density difference in regard to bulk density of untreated wheat had DOT (-1.1 and -1.9 kg hl -1 , respectively), followed by Celatom ® Mn 51 (-3.5 and -4.3 kg hl -1 , respectively) and Sipernat ® 50 S (-5.2 and -5.5 kg hl -1 , respectively). Due to the effect on wheat bulk density DOT belongs to the group with the least negative effect on bulk density and therefore, it is a promising dust to control stored grain insect pests.

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Inert dust insecticides: Part I. Mechanism of action

Cited by 80 publications

References 10 publications

The role of particle size of particulate nano-zinc oxide wood preservatives on termite mortality and leach resistance

The role of particle size of particulate nano-zinc oxide wood preservatives on termite mortality and leach resistance

Response of bean to applications of hydrophobic mineral particles

LABORATORY TESTS ON INSECTICIDAL EFFECTIVENESS OF DISODIUM OCTABORATE TETRAHYDRATE, DIATOMACEOUS EARTH AND AMORPHOUS SILICA GEL AGAINST Sitophilus oryzae (L.) AND THEIR EFFECT ON WHEAT BULK DENSITY

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