Kaolin and copper-based products applications: Ecotoxicology on four natural enemies

Bengochea, Paloma; Amor, F.; Saelices, R.; Hernando, S.; Budia, F.; Adán, Alfredo; Medina, Pilar

doi:10.1016/j.chemosphere.2013.01.034

Cited by 31 publications

(22 citation statements)

References 33 publications

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“…In addition, different functional groups are affected, from predaceous and parasitoids to arthropods with other food habits. Laboratory studies have also shown some negative effects of kaolin on different beneficial arthropods like predatory Heteroptera (Anthocoridae), parasitoid Hymenoptera (Braconidae, Pteromalidae), Neuroptera (Chrysopidae) or Araneae (Bengochea et al, 2013(Bengochea et al, , 2014aBenhadi-Marín et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…Laboratory studies have also reported negative biological and behavioral effects of kaolin particle film on entomophagous arthropods (Ulmer et al, 2006;Porcel et al, 2011;Bengochea et al, 2013Bengochea et al, , 2014aBenhadi-Marín et al, 2016). In addition, although some field trials did not find negative effects of kaolin on certain natural enemies (Karagounis et al, 2006;Sackett et al, 2007;Porcel et al, 2011) in other studies, populations of different taxa of parasitoid and predatory arthropods were reduced after kaolin applications (Knight et al, 2001;Showler & Sétamou, 2004;Lombardini et al, 2005;Jaastad et al, 2006;Markó et al, 2006Markó et al, , 2008Markó et al, , 2010Stelinski et al, 2006;Sackett et al, 2007;Pascual et al, 2010;Scalercio et al, 2010).…”

Section: Introductionmentioning

confidence: 97%

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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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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

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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show abstract

“…Probably this is due to a greater focus on conventional pesticides because they have a high spectrum of action and are known to affect target and non-target organisms (Raguraman & Kannan, 2014). Also, it is expected that if there is any impact of pesticides used in organic agriculture on non-target organisms, they are only at the time of application (Bengochea et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

“…Copper-based defensive agents generally have negative effects on the reproduction or life cycle of beneficial organisms. In the predator Chrysoperla carnea, the Bordeaux mixture induced a small reduction in fecundity when it was residually exposed to larvae or adults (Bengochea et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Ecotoxicological potential of bordeaux mixture and Neem oil on non-target soil organisms

Rosa

Scoriza

Correia

et al. 2017

Agraria

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The use of alternative pesticides has as main function to maximize agricultural production with little or no environmental impact. However, due to the lack of studies and repeated application in certain cultures it is important to check whether there are adverse effects on non-target soil organisms. Thus, the aim of this study was to evaluate the effect of Neem oil and Bordeaux mixture on survival and reproduction Enchytraeus crypticus and Folsomia candida. The tests followed the relevant standards, where the pesticides are applied separately in tropical artificial soil, the tested doses 0, 0.3, 0.5, 1, 3 and 5%, corresponding to concentrations of 0.41, 0.69, 1.38, 4.15 and 6.91 mg g -1 soil. Effects on the organisms survival were only observed at doses equal to or higher than 3%. However, doses equal to or less than recommended (1%) had negative effects on reproduction. These results have a potential impact of Neem oil and Bordeaux mixture on non-target soil organisms, which must be proven with field studies.Key words: organic agriculture; alternative defensive; terrestrial ecotoxicology Potencial ecotoxicológico da calda bordalesa e óleo de Neem sobre organismos não-alvo do solo RESUMO O uso de defensivos alternativos tem como principais funções a maximização da produção agrícola com baixos impactos ecológicos, contudo é importante comprovar se há efeitos adversos sobre organismos não-alvo do solo. Com isso, o objetivo deste trabalho foi avaliar o efeito do óleo Neem e da calda Bordalesa sobre a sobrevivência e reprodução de Enchytraeus crypticus e Folsomia candida. Os ensaios seguiram as normas da Associação Brasileira de Normas Técnicas, onde os defensivos foram aplicados separadamente em solo artificial tropical, nas doses 0, 0,3, 0,5, 1, 3 e 5%, que correspondem a concentração de 0,41, 0,69, 1,38, 4,15 e 6,91 mg g -1 no solo. Os efeitos na sobrevivência dos organismos foram observados apenas em doses iguais ou superiores a 3%. Entretanto, doses iguais ou inferiores a recomendada (1%) apresentaram efeitos negativos na reprodução de ambos organismos. Estes resultados apresentam um potencial impacto do óleo Neem e da calda Bordalesa sobre organismos não-alvo do solo, o que deve ser comprovado com estudos realizados no campo.

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“…The effect on beneficial arthropods has been less studied and side effects were reported for Coccinellidae and parasitoids such as Aphelinidae and Pteromalidae by Pascual et al (2010) and species such as Anthocoris nemoralis (F.) (Hemiptera: Anthocoridae), Chilocorus nigritus (F.) (Coleoptera: Coccinellidae), Chelonus inanitus (L.) (Hymenoptera: Braconidae) and Scutellysta cyanea Motschulsky (Hymenoptera: Pteromalidae) by Bengochea et al (2013). Concerning spiders, Sackett et al (2007), Marko et al (2010) and Pascual et al (2010) observed a reduction of density of spiders in crop fields.…”

Section: Introductionmentioning

confidence: 99%

Effects of kaolin particle films on the life span of an orb-weaver spider

2016

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Kaolin and copper-based products applications: Ecotoxicology on four natural enemies

Cited by 31 publications

References 33 publications

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

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

Ecotoxicological potential of bordeaux mixture and Neem oil on non-target soil organisms

Effects of kaolin particle films on the life span of an orb-weaver spider

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