Ladybug (Coccinellidae) taint in wine

Botezatu, Andreea; Pickering, Gary J.

doi:10.1533/9781845699987.2.418

Cited by 8 publications

(10 citation statements)

References 30 publications

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“…In many wine regions, including Ontario, Canada, it is the most prevalent ladybug species, being observed in vineyards at or around harvest. Botezatu and Pickering and Botezatu et al . reported on the capacity of C. septempunctata to taint wines if sufficient beetles are incorporated with wine‐processing operations, consistent with anecdotal evidence from Germany in the 1980s.…”

Section: Introductionsupporting

confidence: 64%

“…The specific MP(s) responsible for LBT of wine is more equivocal in the literature. While IPMP is the putative candidate, questions are raised by the lack of such finding by Galvan et al ., the co‐elution of some MPs in the aforementioned study of Botezatu and Pickering (their Table 5) and a suggested contribution from SBMP or IBMP in grape juice and wine …”

Section: Discussionmentioning

confidence: 99%

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Methoxypyrazine composition of Coccinellidae‐tainted Riesling and Pinot noir wine from Germany

et al. 2014

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Section: Introductionsupporting

confidence: 64%

Section: Discussionmentioning

confidence: 99%

Methoxypyrazine composition of Coccinellidae‐tainted Riesling and Pinot noir wine from Germany

et al. 2014

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“…Given the significantly higher levels of IBMP in both 7 Spot wines, this compound, or its ratio to the other MPs, may be useful in chemically diagnosing wines suspected of being tainted by 7 Spot. Interestingly, despite these differences in the MP composition of wines made from these different Coccinellidae species, the data from Botezatu and Pickering suggest that they elicit similar sensory profiles.…”

Section: Resultsmentioning

confidence: 98%

“…In many wine regions, including Ontario, Canada, it is now the most prevalent ladybug species, and it is often observed in vineyards at or around harvest. In a preliminary study, Botezatu and Pickering reported on data indicating the capacity of 7 Spot to also contribute to LBT in wine. This finding is consistent with anecdotal evidence that 7 Spot adversely affected the quality of wines in Germany in the 1980s, although at the time the relationship between ladybeetles and wine quality was not yet known.…”

Section: Introductionmentioning

confidence: 99%

Occurrence and contribution of alkyl methoxypyrazines in wine tainted by Harmonia axyridis and Coccinella septempunctata

et al. 2012

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Both Harmonia axyridis and Coccinella septempunctata can contribute alkyl methoxypyrazines, and particularly isopropyl methoxypyrazine, to wine at concentrations that can have a negative impact on wine quality. These findings will allow grape growers and winemakers to be more aware of the risks posed by 7 Spot beetles, and to take the appropriate preventative and remedial actions. Furthermore, this is the first time dimethyl methoxypyrazine is reported in wine, either as an endogenous or Coccinellidae-derived odorant.

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“…In many cases, the innate dispersal behavior of H. convergens has prevented it from being successfully used in large-scale biocontrol releases [29,30]. Finally, H. convergens adults exhibit aggregation behaviors [29,30] and if large populations were to subsist in the vineyard during grape harvest, when crushed, H. convergens can impart a combination of methoxypyrazines that result in a wine flaw referred to as Ladybird taint [31,32].…”

Section: Plos Onementioning

confidence: 99%

Spissistilus festinus (Hemiptera: Membracidae) susceptibility to six generalist predators

Kron

Sisterson

2020

PLoS ONE

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Spissistilus festinus (Say) (Hemiptera: Membracidae) was shown to transmit Grapevine red blotch virus (GRBV) in a greenhouse study. Grapevines infected with GRBV exhibit reduced sugar accumulation, altered secondary metabolite production and delayed berry maturation that negatively impacts wine quality and economics. Augmentative biocontrol may be a useful integrated pest management (IPM) tool for suppressing S. festinus populations in vineyards, but minimal research has been conducted on testing potential predators against the different life stages of S. festinus. The susceptibility of S. festinus adults and nymphs (1st through 5th instar) to predation by six commercially available biocontrol agents in petri dish and bell bean plant arenas was determined under greenhouse conditions. No significant mortality of S. festinus nymphs or adults occurred when exposed to Cryptolaemus montrouzieri adults, C. montrouzieri larvae and Sympherobius barberi adults in petri dish or bell bean plant arenas. Significant mortality of 1st and 2nd instar nymphs of S. festinus in the presence of Zelus renardii nymphs was observed in petri dish but not in bell bean arenas. Hippodamia convergens adults and Chrysoperla rufilabris larvae both consumed a significant number of S. festinus nymphs in petri dish and bell bean arenas. No significant predation of S. festinus adults was documented in this experiment. Results of this study aid in identifying predators that may be suitable candidates for additional field testing to determine their potential efficacy as biocontrol agents of S. festinus in a vineyard setting.

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Ladybug (Coccinellidae) taint in wine

Cited by 8 publications

References 30 publications

Methoxypyrazine composition of Coccinellidae‐tainted Riesling and Pinot noir wine from Germany

Methoxypyrazine composition of Coccinellidae‐tainted Riesling and Pinot noir wine from Germany

Occurrence and contribution of alkyl methoxypyrazines in wine tainted by Harmonia axyridis and Coccinella septempunctata

Spissistilus festinus (Hemiptera: Membracidae) susceptibility to six generalist predators

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