Some Factors Influencing the Ovicidal Effectiveness of Saturated Petroleum Oils and Synthetic Isoparaffins1

Fiori, B. J.; Smith, E. H.; Chapman, P. J.

doi:10.1093/jee/56.6.885

Cited by 10 publications

(8 citation statements)

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“…When applied topically to either newly laid or black-headed egg masses, Purespray Green caused significant egg mortality in a dosedependent manner. This supports the hypothesis that oils with a long carbon chain (>nC23), like Purespray Green, have strong ovicidal activity even at low concentrations because of their high spreading coefficient and low volatility (Pearce and Chapman 1952;Fiori et al 1963). These properties allow the oil to create a physical bar-rier over the egg surface for an extended period of time, and eggs may be killed through a combination of anoxic conditions, a buildup of toxic metabolites, and disruption of membrane function (Smith and Pearce 1948).…”

Section: Tablesupporting

confidence: 75%

“…The no-choice assays in the current study showed that Purespray Green is toxic to C. rosaceana eggs; residual spray from a fresh 2% oil treatment significantly reduced larval hatch. The reasons for this remain unclear because a residual treatment should not physically interfere with gas exchange across egg membranes -the generally accepted explanation for the ovicidal effect of oil in arthropods (Smith and Pearce 1948;Fiori et al 1963;Taverner 2002). However, there is evidence that oils can be absorbed into insect membranes and displace protective lipids (Taverner et al 2001).…”

Section: Tablementioning

confidence: 99%

“…Oils applied to adults enter through the spiracles, penetrate the trachea for a short distance, and impede gas exchange (Taverner 2002). Oils applied to eggs coat the surface and induce suffocation (Pearce and Chapman 1952;Fiori et al 1963). Long carbon chain oils (i.e., >nC23) are the most effective formulations for egg suffocation because they spread evenly over the surface and have low volatility (Pearce and Chapman 1952;Fiori et al 1963).…”

Section: Introductionmentioning

confidence: 99%

“…Oils applied to eggs coat the surface and induce suffocation (Pearce and Chapman 1952;Fiori et al 1963). Long carbon chain oils (i.e., >nC23) are the most effective formulations for egg suffocation because they spread evenly over the surface and have low volatility (Pearce and Chapman 1952;Fiori et al 1963). In addition, residual oil sprayed onto foliage may have ovicidal activity (Larew and Locke 1990;Riedl et al 1995) and deter oviposition in several insect species (Larew and Locke 1990;Mensah et al 1995;Sun 2002;Liu et al 2006;Nguyen et al 2007).…”

Section: Introductionmentioning

confidence: 99%

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Effect of horticultural oil on oviposition behaviour and egg survival in the obliquebanded leafroller (Lepidoptera: Tortricidae)

et al. 2009

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The effects of the horticultural oil Purespray Green on oviposition behaviour and egg development in the obliquebanded leafroller, Choristoneura rosaceana (Harris), were investigated through dual-choice and no-choice bioassays and topical applications of oil to developing eggs. A residual 2% (v/v) oil spray on wax-paper and apple-leaf substrates significantly reduced both the number of eggs laid and egg survival in no-choice assays; however, this effect diminished 3 days after treatment. In dual-choice assays, females laid significantly fewer eggs on oil-treated apple leaves than on control leaves, but laid equal numbers of eggs on the oil-treated wax paper and the untreated wax-paper controls. Topical application of oil caused significant dose-dependent mortality of both newly laid eggs and eggs just before hatch, and these two egg stages were equally susceptible to the oil. Topical application of 2% oil caused >99% egg mortality. Our data indicate that gravid female C. rosaceana can assess and reject oil-sprayed surfaces and that the oil can kill eggs through both contact toxicity and suffocation. These characteristics suggest that highly purified horticultural oils like Purespray Green could play a role in an integrated pest management program for this important pest species.

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Section: Tablesupporting

confidence: 75%

Section: Tablementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of horticultural oil on oviposition behaviour and egg survival in the obliquebanded leafroller (Lepidoptera: Tortricidae)

et al. 2009

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“…Although acaricidal properties of neem oil are known (Mansour and Ascher 1983, Sanguanpong and Schmutterer 1992, Mansour et al 1993, its activity has been suggested to be unique and not generic to a wider subset of vegetable and petroleum-based oils. However, horticultural and veterinary oils are widely used as agents to control mite pests (Smith and Pearce 1948, Fiori et al 1963, Guiamaraes and Tucci 1992, Agnello et al 1994, Herron et al 1996. Our results demonstrate that the acaricidal activity of neem oil is not a unique property but is shared by other oils.…”

Section: Discussionmentioning

confidence: 67%

Comparative Laboratory Toxicity of Neem Pesticides to Honey Bees (Hymenoptera: Apidae), Their Mite ParasitesVarroa jacobsoni(Acari: Varroidae) andAcarapis woodi(Acari: Tarsonemidae), and Brood PathogensPaenibacillus larvaeandAscophaera apis

Melathopoulos¹,

Winston²,

Whittington³

et al. 2000

J Econ Entomol

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Laboratory bioassays were conducted to evaluate neem oil and neem extract for the management of key honey bee (Apis mellifera L.) pests. Neem pesticides inhibited the growth of Paenibacillus larvae (Ash, Priest & Collins) in vitro but had no effect on the growth of Ascophaera apis (Olive & Spiltoir). Azadirachtin-rich extract (neem-aza) was 10 times more potent than crude neem oil (neem oil) against P. larvae suggesting that azadirachtin is a main antibiotic component in neem. Neem-aza, however, was ineffective at controlling the honey bee mite parasites Varroa jacobsoni (Ouduemans) and Acarapis woodi (Rennie). Honey bees also were deterred from feeding on sucrose syrup containing > 0.01 mg/ml of neem-aza. However, neem oil applied topically to infested bees in the laboratory proved highly effective against both mite species. Approximately 50-90% V. jacobsoni mortality was observed 48 h after treatment with associated bee mortality lower than 10%. Although topically applied neem oil did not result in direct A. woodi mortality, it offered significant protection of bees from infestation by A. woodi. Other vegetable and petroleum-based oils also offered selective control of honey bee mites, suggesting neem oil has both a physical and a toxicological mode of action. Although oils are not as selective as the V. jacobsoni acaricide tau-fluvalinate, they nonetheless hold promise for the simultaneous management of several honey bee pests.

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Post-harvest disinfestation of lightbrown apple moth,Epiphyas postvittanaWalker (Lepidoptera: Tortricidae), with an alkane

Taverner

Bailey

Hodgkinson³

et al. 1999

Pestic. Sci.

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Lightbrown apple moth (LBAM), Epiphyas postvittana Walker was used as a test insect to evaluate a post‐harvest oil, C15 Ampol CPD, and a spray oil, C23 Ampol DC‐Tron NR, both applied as dips. CPD was much more efficacious than C23 DC‐Tron NR against exposed third‐instar larvae. Higher oil concentrations were required to penetrate and kill larvae sheltering under the calyx of oranges. LBAM eggs were more susceptible to CPD oil than larval stages. LBAM larvae dipped in sub‐lethal doses of oil continued to develop, but the fecundity of both males and females was reduced. DC‐Tron had a significant effect on egglaying. CPD and C23 DC‐Tron NR affected the fertility of eggs laid. CPD oil sprayed at 50 ml litre−1 on adult LBAM moths reduced their fertility. Factors contributing to the higher efficacy of CPD and its potential use as a post‐harvest treatment are discussed. © 1999 Society of Chemical Industry

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Some Factors Influencing the Ovicidal Effectiveness of Saturated Petroleum Oils and Synthetic Isoparaffins1

Cited by 10 publications

References 0 publications

Effect of horticultural oil on oviposition behaviour and egg survival in the obliquebanded leafroller (Lepidoptera: Tortricidae)

Effect of horticultural oil on oviposition behaviour and egg survival in the obliquebanded leafroller (Lepidoptera: Tortricidae)

Comparative Laboratory Toxicity of Neem Pesticides to Honey Bees (Hymenoptera: Apidae), Their Mite ParasitesVarroa jacobsoni(Acari: Varroidae) andAcarapis woodi(Acari: Tarsonemidae), and Brood PathogensPaenibacillus larvaeandAscophaera apis

Post-harvest disinfestation of lightbrown apple moth,Epiphyas postvittanaWalker (Lepidoptera: Tortricidae), with an alkane

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