Compatibility of spinosad with predaceous mites (Acari) used to control <i>Frankliniella occidentalis</i> (Pergande) (Thysanoptera: Thripidae)

Rahman, Tasmina; Spafford, Helen; Broughton, Sonya

doi:10.1002/ps.2144

Cited by 23 publications

(12 citation statements)

References 50 publications

(50 reference statements)

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“…High Araneus pretensis (Emerton) mortality was observed owing to the ingestion of prey treated with low spinosad rates (2.5–25% of the maximum recommended field rates) 53. Risk assessment on predatory mites revealed that the survival of some species belonging to the genera Hypoaspis, Neoseiulus, Typhlodromus and Typhlodromips was significantly affected by contact with dried spinosad residues on leaves (see supporting information Table S1) 54–57. In addition, Rahman et al 57 showed, in a more realistic experimental set‐up, the synergic lethal effect from the exposure to residues and ingestion of prey previously fed on treated leaves.…”

Section: Side Effects Of Spinosyns On Non Target Organisms Reported mentioning

confidence: 99%

“…Risk assessment on predatory mites revealed that the survival of some species belonging to the genera Hypoaspis, Neoseiulus, Typhlodromus and Typhlodromips was significantly affected by contact with dried spinosad residues on leaves (see supporting information Table S1) 54–57. In addition, Rahman et al 57 showed, in a more realistic experimental set‐up, the synergic lethal effect from the exposure to residues and ingestion of prey previously fed on treated leaves. The new, semi‐synthetic spinosyn spinetoram was also very toxic when applied on eggs and larvae of the western predatory mite Galendromus occidentalis (Nesbitt), while 100% mortality of females was recorded after 72 h of exposure.…”

Section: Side Effects Of Spinosyns On Non Target Organisms Reported mentioning

confidence: 99%

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The non‐target impact of spinosyns on beneficial arthropods

Biondi¹,

Mommaerts²,

Smagghe³

et al. 2012

Pest Management Science

341

169

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Spinosyn-based products, mostly spinosad, have been widely recommended by extension specialists and agribusiness companies; consequently, they have been used to control various pests in many different cropping systems. Following the worldwide adoption of spinosad-based products for integrated and organic farming, an increasing number of ecotoxicological studies have been published in the past 10 years. These studies are primarily related to the risk assessment of spinosad towards beneficial arthropods. This review takes into account recent data with the aim of (i) highlighting potentially adverse effects of spinosyns on beneficial arthropods (and hence on ecosystem services that they provide in agroecosystems), (ii) clarifying the range of methods used to address spinosyn side effects on biocontrol agents and pollinators in order to provide new insights for the development of more accurate bioassays, (iii) identifying pitfalls when analysing laboratory results to assess field risks and (iv) gaining increasing knowledge on side effects when using spinosad for integrated pest management (IPM) programmes and organic farming. For the first time, a thorough review of possible risks of spinosad and novel spinosyns (such as spinetoram) to beneficial arthropods (notably natural enemies and pollinators) is provided. The acute lethal effect and multiple sublethal effects have been identified in almost all arthropod groups studied. This review will help to optimise the future use of spinosad and new spinosyns in IPM programmes and for organic farming, notably by preventing the possible side effects of spinosyns on beneficial arthropods.

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Section: Side Effects Of Spinosyns On Non Target Organisms Reported mentioning

confidence: 99%

Section: Side Effects Of Spinosyns On Non Target Organisms Reported mentioning

confidence: 99%

The non‐target impact of spinosyns on beneficial arthropods

Biondi¹,

Mommaerts²,

Smagghe³

et al. 2012

Pest Management Science

341

169

View full text Add to dashboard Cite

show abstract

“…The adoption of thresholds for timing insecticide treatments is likely to reduce the selection pressure for resistance and therefore maintain or improve the efficacy of insecticides (Denholm and Jespersen 1998), as well as reducing the side-effects on natural enemies (Rahman et al 2011). Most thresholds developed for strawberry crops are based on assessment of thrips density in flowers, as there is a strong correlation between numbers of F. occidentalis per flower and fruit damage (Steiner and Goodwin 2005b; Coll et al 2007; Sampson 2014).…”

Section: Introductionmentioning

confidence: 99%

Predatory mites double the economic injury level of Frankliniella occidentalis in strawberry

Sampson

Kirk

2016

BioControl

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The western flower thrips Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) causes bronzing to strawberry fruit. Management of insecticide-resistant strains relies on the integration of predators with carefully timed use of the few insecticides available. Effective management requires better understanding of economic injury levels (EILs) and the factors that affect them. The densities of F. occidentalis and the predatory mite Neoseiulus cucumeris (Oudemans) (Acari: Phytoseiidae) were manipulated in field experiments. All stages of flower and fruit were susceptible to thrips damage, but larvae caused nearly twice as much damage as adults per individual. The EIL was about four adult thrips per flower in the absence of predators, but increased to over eight at densities of N. cucumeris typical of good establishment in crops. The EIL could be increased by about 0.7 adult thrips per flower for every N. cucumeris per flower. The results were supported by measurements of EILs in commercial crops.

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“…In a previous study, we reported that these species effectively reduced F. occidentalis numbers in strawberry grown under controlled conditions (Rahman et al., 2011a). Moreover, multiple‐species releases of these predatory mites are more effective than single‐species releases (Rahman et al., 2011b). However, these studies were carried out in controlled environments (25 ± 2 °C, 50–60% r.h.), but the use of these predatory mites in semi‐field protected crops such as low tunnel (floating cover) in relatively cooler condition (<20 °C) is not known.…”

Section: Introductionmentioning

confidence: 99%

“…The biopesticide spinosad is very effective against F. occidentalis in a range of crops including strawberry (Steiner & Medhurst, 2003; Broughton & Herron, 2009b). In our previous studies, we reported that spinosad application followed by releases of predatory mites in two‐ or three‐species combinations is the most effective in controlling F. occidentalis (Rahman et al., 2011b). We also reported that spinosad has no detrimental effects on predatory mites if released 5–6 days post‐treatment (Rahman et al., 2011c).…”

Section: Introductionmentioning

confidence: 99%

Use of spinosad and predatory mites for the management of Frankliniella occidentalis in low tunnel‐grown strawberry

Rahman

Spafford

Broughton

2012

Entomologia Exp Applicata

Self Cite

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Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) is a major pest of strawberry. The efficacy of three species of predatory mites, Typhlodromips montdorensis (Schicha), Neoseiulus cucumeris (Oudemans) (both: Acari: Phytoseiidae), and Hypoaspis miles (Berlese) (Acari: Laelapidae), and their compatibility with spinosad for the control of this thrips was evaluated in commercial strawberry in spring. Low tunnel‐grown strawberry was treated with ‘water then mites’, ‘spinosad then mites’, or ‘mites then spinosad’. Predatory mites were released as single‐, two‐ and three‐species combinations. Overall, spinosad‐treated plants had fewer thrips than water‐treated plants (control). In all treatment regimes, each species of predatory mite reduced the number of thrips relative to those plants that received no mites. Predatory mites were most effective in reducing thrips when released after spinosad was applied. Any multiple‐species combination of predatory mites reduced thrips numbers more than single‐species releases. The two‐species combination of T. montdorensis (foliage inhabiting) and H. miles (soil dwelling) was the most effective in suppressing thrips. The next most effective combination was a three‐species release. Of multiple‐species combinations, the two‐species combination of T. montdorensis and N. cucumeris was the least effective in suppressing thrips numbers. The spinosad and mites only temporarily reduced the numbers of F. occidentalis. This suggests that further application of predatory mites, spinosad, or both is required to maintain F. occidentalis populations below an economically damaging level.

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Compatibility of spinosad with predaceous mites (Acari) used to control Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae)

Abstract: Predatory mites can be safely released 6 days after spinosad is applied for the management of F. occidentalis.

Cited by 23 publications

References 50 publications

The non‐target impact of spinosyns on beneficial arthropods

The non‐target impact of spinosyns on beneficial arthropods

Predatory mites double the economic injury level of Frankliniella occidentalis in strawberry

Use of spinosad and predatory mites for the management of Frankliniella occidentalis in low tunnel‐grown strawberry

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