Rapid Desiccation of Drywood Termites with Inert Sorptive Dusts and Other Substances

Ebeling, Walter; Wagner, Robert E.

doi:10.1093/jee/52.2.190

Cited by 69 publications

(34 citation statements)

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“…of Sitophilus oryzae adults exposed for 4 days on rice treated with bulk and nano silica at 3 dose rates with control Nanoparticle 0 g kg -1 0.5 g kg -1 1 g kg -1 2 g kg -1 Within each column, means followed by the same lower case letter are not significantly different, within each row means followed by the same upper case letter are not significantly different; Tukey-Kramer HSD test; P = 0.05 Table 5 Mean mortality (±S.E.) of Sitophilus oryzae adults exposed for 7 days on rice treated with bulk and nano silica at 3 dose rates with control Nanoparticle 0 g kg -1 0.5 g kg -1 1 g kg -1 2 g kg -1 Wagner (1959) proposed that insecticidal efficacy of the dust becomes enhanced if the particles are finely divided. This was also evident from our experiment, where nanosilica was far more effective than bulk silica because of their enormously increased exposed surfaces which could interact with the insect cuticle.…”

Section: Discussionmentioning

confidence: 99%

Entomotoxic effect of silica nanoparticles against Sitophilus oryzae (L.)

et al. 2010

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Fumigants and residual insecticides are commonly used to combat stored grain pests. In recent years, consumer awareness of the health hazard from residual toxicity and the growing problem of insect resistance to these conventional insecticides have led the researchers to look for alternative strategies for stored grains protection. For example, diatomaceous earth (DE) can be effective against stored grain insects. In this study, DE was used to design amorphous nano sized hydrophilic, hydrophobic, and lipophilic silica in 15-30 nm size range. Nanocides are expected to reduce the volume of application and kinetics of development of resistance in pests. We hypothesized that surface-functionalized silica nanoparticle (SNP) might be a viable alternative to conventional pesticides. Entomotoxicity of SNP was tested against rice weevil Sitophilus oryzae and its efficacy was compared with bulk-sized silica (individual particles larger than 1 lm). Amorphous SNP was found to be highly effective against this insect pest causing more than 90% mortality, indicating the effectiveness of SNP to control insect pests.

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Section: Discussionmentioning

confidence: 99%

Entomotoxic effect of silica nanoparticles against Sitophilus oryzae (L.)

et al. 2010

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“…Between the 1950s and 1960s, non-abrasive sorptive dusts like montmorillonite and attapulgite were found to remove the thin lipid layer covering the epicuticle of dry wood termites. The ability of finely divided particles to adsorb and remove the cuticular waxes of insects was proved by Ebling and Wagner (1959). Interest in the control of insects with inert dusts has transitioned from minerals to synthetic compounds like silica aerogels and fumed silicas by 1970.…”

Section: History Of Mineral Particle Film Usementioning

confidence: 99%

Particle films and their applications in horticultural crops

Sharma

Reddy

Datta

2015

Applied Clay Science

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“…Hydrophilic Þlms are apparently less absorbent to cuticular waxes; however, our data suggest that this property can be inßuenced by formulation. Other studies on the lethality of mineral particles to other insects found that several days are needed before sufÞcient cuticle abrasion or absorption occurs to cause death by desiccation (Alexander et al 1944a, Kalmus 1944, Wigglesworth 1944, Hunt 1947, David and Gardiner 1950, Ebling and Wagner 1959. Nymphal mortality was rapid enough as to suggest another mechanism of action.…”

Section: Discussionmentioning

confidence: 98%

Action of Particle Films on the Biology and Behavior of Pear Psylla (Homoptera: Psyllidae)

Puterka¹,

Glenn²,

Pluta³

2005

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Particle films with different properties have been developed for arthropod pest control. Two basic film types are hydrophobic and hydrophilic films. The hydrophilic film formulations differ in the amount and kind of spreader-sticker that is incorporated into the kaolin particles. The effects of particle film type (hydrophobic versus hydrophilic) and formulation (Surround versus Surround WP) on the biology and behavior of pear psylla, Cacopsylla pyricola (Foerster), were investigated on pear in a series of laboratory studies. Scanning electron microscopy determined that the number of particles that attached to the front tibia of adult psylla differed by particle formulation but the particle sizes were fairly uniform and ranged from 3.6 to 4.5 microm in diameter. Adults had difficulty grasping particle film-treated leaves, and this effect was influenced by film type and leaf surface. Choice and no-choice tests indicated that adult settling and oviposition were very low, regardless of film type or formulation. Under no-choice conditions, adult mortality was low, in part, because the adults were able to feed through all 3% particle films, but at reduced rates. However, the mortality of adults sprayed with 3% particle film solutions ranged from 22.2 to 62.5% within 72 h after treatment, and mortalities differed most between the hydrophilic formulations. Nymphs born on particle film-treated foliage incurred high mortalities ranging from 58.9 to 82.0% by the time they reached the fifth instar and were affected most by particle film type. Nymphal development was not affected by particle film type or formulation. Egg fertility and nymphal hatch also were unaffected by particle films. These studies determined that there are a number of biological effects particle films have on pear psylla beyond the deterrence of adult settling and oviposition.

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Rapid Desiccation of Drywood Termites with Inert Sorptive Dusts and Other Substances

Cited by 69 publications

References 0 publications

Entomotoxic effect of silica nanoparticles against Sitophilus oryzae (L.)

Entomotoxic effect of silica nanoparticles against Sitophilus oryzae (L.)

Particle films and their applications in horticultural crops

Action of Particle Films on the Biology and Behavior of Pear Psylla (Homoptera: Psyllidae)

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