Effects of organic‐farming‐compatible insecticides on four aphid natural enemy species

Jansen, J. P.; Defrance, T.; Warnier, A. M.

doi:10.1002/ps.1924

Cited by 20 publications

(15 citation statements)

References 39 publications

(46 reference statements)

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“…To reinforce the action of the pyrethrum, some synergistic molecules can be added to the formulation; the main molecule is piperonylbutoxide (PBO). Pyrethrum containing some PBO is allowed in organic farming but is subject to controversy due to its toxicity (Jansen et al, 2010). …”

Section: Main Mode Of Action Of Bio-control Agentsmentioning

confidence: 99%

Resistance to bio-insecticides or how to enhance their sustainability: a review

Siegwart

Graillot

Lopez³

et al. 2015

Front. Plant Sci.

153

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After more than 70 years of chemical pesticide use, modern agriculture is increasingly using biological control products. Resistances to conventional insecticides are wide spread, while those to bio-insecticides have raised less attention, and resistance management is frequently neglected. However, a good knowledge of the limitations of a new technique often provides greater sustainability. In this review, we compile cases of resistance to widely used bio-insecticides and describe the associated resistance mechanisms. This overview shows that all widely used bio-insecticides ultimately select resistant individuals. For example, at least 27 species of insects have been described as resistant to Bacillus thuringiensis toxins. The resistance mechanisms are at least as diverse as those that are involved in resistance to chemical insecticides, some of them being common to bio-insecticides and chemical insecticides. This analysis highlights the specific properties of bio-insecticides that the scientific community should use to provide a better sustainability of these products.

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Section: Main Mode Of Action Of Bio-control Agentsmentioning

confidence: 99%

Resistance to bio-insecticides or how to enhance their sustainability: a review

Siegwart

Graillot

Lopez³

et al. 2015

Front. Plant Sci.

153

View full text Add to dashboard Cite

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“…On the other hand, application of wide-spectrum bioinsecticides upsets natural biodiversity and affects population abundance of predators, which has a reverse negative effect on production sustainability and inevitability of repeated treatments (Fitzgerald, 2004;Jansen et al, 2010). The present study aimed to investigate the possibility of effective control of A. pomi on apple trees in organic production by minimal treatment with a bioinsecticide product in combination with the activity of an autochthonous predator population.…”

Section: Introductionmentioning

confidence: 99%

Control of green apple aphid (Aphis pomi De Geer) in organic apple production

2013

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SuMMARYThe efficacy of different methods for controlling populations of green apple aphid (Aphis pomi De Geer) in organic apple orchard was compared over three consecutive years. The following three control methods were tested: a) predator activity (Coccinela septempunctata), b) predator activity (C. septempunctata) + selective spraying of trees with infestation level exceeding 10% with a botanical insecticide (NeemAzal T/S), and c) predator activity (C. septempunctata) + total spraying of all orchard trees with the botanical insecticide (NeemAzal T/S). In terms of maintaining a biological balance within an orchard, the combination of natural regulation by C. septempunctata and selective spraying of individual trees with NeemAzal T/S proved to be the most efficient method.

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“…No negative effect of insecticidal soaps on natural enemies have been reported in many studies (Natarajan, 1990;Bigler & Waldburger, 1994;Jacas Miret & García-Marí, 2001; Karagounis et al, 2006;Jansen et al, 2010). However, in others, negative effects of soaps applications were found on some groups of natural enemies (Oetting & Latimer, 1995;Smith & Krischik, 2000;Stansly et al, 2002;Kraiss & Cullen, 2008;Raudonis et al, 2010;Hall & Richardson, 2013;Smaili et al, 2014).…”

Section: Introductionmentioning

confidence: 98%

Compatibility of organic farming treatments against Monosteira unicostata with non-target arthropod fauna of almond trees canopy

Sánchez‐Ramos

Marcotegui

Pascual

et al. 2017

Span. j. agric. res.

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Field trials had shown that 1-2 applications of kaolin and potassium salts of fatty acids combined with thyme essential oil (PSTEO) reduced the abundance of the lace bug Monosteira unicostata (Mulsant & Rey) (Hemiptera: Tingidae), an important pest of almond trees in the Mediterranean region. These products could be useful for the control of this pest in organic production of almonds, but higher number of applications could be necessary. However, the possible detrimental effects on the almond orchard ecosystem should be evaluated. In the present work, the effects observed on the non-target arthropod fauna of the almond trees canopy in those field assays are shown. First, a comprehensive report of the non-target arthropod fauna of the almond tree is provided. Regarding natural enemies, most of the predatory arthropods captured were spiders belonging to different families like Salticidae, Thomisidae, Philodromidae, Theridiidae, Araneidae or Oxyopidae. Other predatory families that appeared in significant numbers were Chrysopidae, Anthocoridae, Aeolothripidae, Coccinellidae, Phytoseiidae, Erythraeidae or Forficulidae. Among parasitoids, the most abundant families were Eulophidae, Scelionidae and Dryinidae. Kaolin reduced the abundance of natural enemies and other non-target arthropods as well as their diversity and number of species. On the contrary, PSTEO only produced a slight reduction in the number of natural enemies, whereas no effect was found on the diversity and species richness. These effects were observed despite the reduced number of applications, so greater effect is expected if its frequency is increased in order to achieve an efficient control of M. unicostata.Additional keywords: kaolin; insecticidal soaps; thyme essential oil; organic almond production; Prunus dulcis; natural enemies Abbreviations used: PRC (principal response curve analysis); PSTEO (potassium salts of fatty acids combined with thyme essential oil). (Tables S1, S2, S3 and S4) accompanies the paper on SJAR's website.

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Effects of organic‐farming‐compatible insecticides on four aphid natural enemy species

Cited by 20 publications

References 39 publications

Resistance to bio-insecticides or how to enhance their sustainability: a review

Resistance to bio-insecticides or how to enhance their sustainability: a review

Control of green apple aphid (Aphis pomi De Geer) in organic apple production

Compatibility of organic farming treatments against Monosteira unicostata with non-target arthropod fauna of almond trees canopy

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