Efficacy of ultra-low volume aerial application of an azadirachtin-based insecticide for control of the pine false webworm,<i>Acantholyda erythrocephala</i>(L.) (Hymenoptera: Pamphiliidae), in Ontario, Canada

Lyons, D. Barry; Helson, B. V.; Thompson, Dean G.; Jones, Gene; McFarlane, John; Robinson, A. G.; Mickle, R. E.

doi:10.1080/713867832

Cited by 6 publications

(7 citation statements)

References 21 publications

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Section: Discussionsupporting

confidence: 90%

“…In our experiments, azadirachtin, applied on fish with concentration of 18 mg/L or greater, strongly inhibited larvae development. This inhibit effect agrees with another experiment when neem is sprayed immediately after egg hatch of the sawfly Acantholyda erythrocephala (Lyons et al 2003). As larvae on azadirachtin-treated fish grew more slowly, or even stopped growing when developed to the second instar, damage on azadirachtin-treated fish was largely reduced compared to control fish.…”

Section: Effects Of Azadirachtin On the Growth And Mortality Of C Mesupporting

confidence: 88%

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LABORATORY STUDY ON AZADIRACHTIN TO PROTECT SALTED SUN-DRIED FISH FROMCHRYSOMYA MEGACEPHALAINFESTATION

Xia

2010

Journal of Food Processing and Preservation

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Laboratory investigations on azadirachtin to protect salted sun‐dried fish from blowfly infestation were conducted by studying the effects of azadirachtin on the repellence, oviposition, larval growth and mortality of Chrysomya megacephala, in salted sun‐dried fish during drying processing. The results on repellence and oviposition indicated that azadirachtin could repel C. megacephala and inhibit its oviposition on fish during drying days. When the salted fish were dipped for 1 min in aqueous azadirachtin preparation for a range of concentrations before sun‐drying, repellence of 89.25, 95.61 and 100% in the morning and 55.56, 71.23 and 94.52% in the afternoon of the first drying day was obtained by azadirachtin at the concentrations of 18, 54 and 162 mg/L, respectively. The inhibit concentrations (IC) of azadirachtin were 21.54 and 167.75 mg/L during the first drying day, 31.52 and 286.67 mg/L during the second drying day for IC50 and IC95, respectively. The results on larval growth and mortality showed that azadirachtin strongly inhibited larval growth and had high toxicity on larvae in fish. Concentrations of 6, 18 and 54 mg/L gave corrected mortalities of larvae by 14.67, 44.67 and 86.67% as compared with the control group. PRACTICAL APPLICATIONS Azadirachtin, an extract from neem, is efficient in protecting salted sun‐dried fish from Chrysomya megacephala infestation. Reductions of adult landing and egg laying on fish during drying processing result in azadirachtin having a repellent activity on adult blowfly and a potential inhibition on oviposition of blowfly on fish. Decreased growth rate and delayed larval pupation and high mortality of larvae make azadirachtin as growth deterrent and larvicide against blowfly larvae on fish. A 100% protection efficiency is obtained at the concentration of 160 mg/L azadirachtin, indicating that it is feasible to substitute chemical pesticides with azadirachtin for protecting salted sun‐dried fish from blowfly infestation.

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Section: Discussionsupporting

confidence: 90%

Section: Effects Of Azadirachtin On the Growth And Mortality Of C Mesupporting

confidence: 88%

LABORATORY STUDY ON AZADIRACHTIN TO PROTECT SALTED SUN-DRIED FISH FROMCHRYSOMYA MEGACEPHALAINFESTATION

Xia

2010

Journal of Food Processing and Preservation

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“…aggressiveness, has been reported when the extract is sprayed immediately after the hatching of the eggs of Acantholyda erythrocephala (Hymenoptera: Pamphiilidae) [38]. In the case of Cycloneda sanguinea (Coleoptera: Coccinellidae), the authors did not report any changes in the survival and duration of caterpillars that development from neem-treated eggs [36].…”

Section: Citationmentioning

confidence: 72%

Toxicity and Residual Activity of a Commercial Formulation of Oil from Neem, Azadirachta indica A. Juss. (Meliaceae), in the Embryonic Development of Diatraea saccharalis F. (Lepidoptera: Crambidae)

2013

J Biofertil Biopestici

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The effects of a commercial formulation of oil from neem, Azadirachta indica A. Juss (Meliaceae), on the eggs of sugarcane borer Diatraea saccharalis F.,1794 (Lepidoptera: Crambidae), at different stages of its embryonic development were investigated. To evaluate the ovicidal activity of the oil, eggs were sprayed with the product at concentrations of 0.1%, 0.3%, 0.5%, 1.0% and 2.0% at 1, 2, 3, 4, 5 and 6 days after day were laid. Controls were sprayed with distilled water. The neem oil was toxic to eggs, mainly when applied to 2-, 3-, 4-and 5-daysold eggs. The percentage of viability reduction was 31-99%. Higher levels of caterpillar eclosion were obtained in eggs treated with neem oil at older ages. However, the resulting caterpillars had fatal morphological anomalies, except those exposed to 0.1% neem oil. Neem oil is highly toxic when sprayed on D. saccharalis eggs, as demonstrated by severely reduced hatching, increased mortality of hatched caterpillars, impaired embryonic development, and residual activity in the production of new individuals. Therefore, neem oil may be a promising agent against the sugarcane borer, during the stage in which penetrates the stalk, causing heavy damage to the sugar-cane crop.da Silva et al., J

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“…Outbreaks in the U.S. and Canada can encompass thousands of hectares and persist for 20 yr or more (Asaro and Allen 1999;Allen 2000, personal observation), resulting in a growth reduction and increased mortality of host trees (MiddleKauff 1958;Syme 1981;Moody 1990;Lyons 1994;Asaro and Allen 2001;Mayfield et al 2005). Numerous strategies considered as a means of control for this pest have met with variable success including: application of synthetic pesticides (Lyons et al 1993), natural toxins such as neem extracts (Helson et al 1999;Lyons et al 1996Lyons et al , 1998Lyons et al , 2003, biological control (Wilson 1984;Lyons 1999;Kenis and Kloosterman 2001;Thompson et al 2003). However, many of these strategies require precise knowledge of the distribution and phenology of PFW over large tracts of forest.…”

Section: Introductionmentioning

confidence: 97%

Sex Pheromone of the Pine False Webworm Acantholyda erythrocephala

et al. 2009

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Females of the pine false webworm Acantholyda erythrocephala (L) produce the sex pheromone (Z)-6, 14-pentadecadienal, which attracts flying males in the field. By using gas chromatography coupled with electroantennographic detection (GC-EAD) and mass spectrometry (GC-MS), we detected (Z)-6,14-pentadecadienal in volatile collections and in whole body extracts of female A. erythrocephala. Females, but not males, also exhibited a 25-carbon cuticular hydrocarbon, (Z,Z)-1,9,15-pentacosatriene, which can oxidize to (Z)-6,14-pentadecadienal upon exposure to air and sunlight. (Z,Z)-1,9,15-Pentacosatriene and (Z)-6,14-pentadecadienal identifications were corroborated by comparison with synthetic standards. (Z)-6, 14-Pentadecadienal is the second pheromone identified for pamphilliid sawflies, and the first to elicit strong field attraction, and thus offer potential as a pheromone lure to aid in control of this forest pest.

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Efficacy of ultra-low volume aerial application of an azadirachtin-based insecticide for control of the pine false webworm,Acantholyda erythrocephala(L.) (Hymenoptera: Pamphiliidae), in Ontario, Canada

Cited by 6 publications

References 21 publications

LABORATORY STUDY ON AZADIRACHTIN TO PROTECT SALTED SUN-DRIED FISH FROMCHRYSOMYA MEGACEPHALAINFESTATION

LABORATORY STUDY ON AZADIRACHTIN TO PROTECT SALTED SUN-DRIED FISH FROMCHRYSOMYA MEGACEPHALAINFESTATION

Toxicity and Residual Activity of a Commercial Formulation of Oil from Neem, Azadirachta indica A. Juss. (Meliaceae), in the Embryonic Development of Diatraea saccharalis F. (Lepidoptera: Crambidae)

Sex Pheromone of the Pine False Webworm Acantholyda erythrocephala

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