Reduced-risk fungicides help manage brown rot and other fungal diseases of stone fruit

Adaskaveg, J. E.; Förster, Helga; Gubler, W. D.; Teviotdale, B. L.; Thompson, David F.

doi:10.3733/ca.v059n02p109

Cited by 40 publications

(24 citation statements)

References 2 publications

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“…The introduction of new reduced-risk fungicides, as low mammalian toxicity, low toxicity to nontarget organisms, low potential for groundwater contamination, compatible with integrated pest management practices (Adaskaveg et al, 2005), opens the possibility to use chemical control strategies to protect strawberries, prolonging their shelf life. Among these fungicides, boscalid (= nicobifen) has been suggested to control B. cinerea and R. stolonifer on strawberry and other fruit crops (Latorre et al, 2002b;Adaskaveg et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Effect of boscalid on postharvest decay of strawberry caused by Botrytis cinerea and Rhizopus stolonifer

Sallato

Torres

Zóffoli

et al. 2007

Span. j. agric. res.

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Strawberry (Fragaria x ananassa Duch.) is a nonclimateric fruit characterized by a short postharvest life, often estimated in less than 5 days. It is very prone to rapid dehydration, physiological disorders, bruising and other mechanical injuries, and to infections caused by several pathogens that can rapidly reduce quality of ripe fruits. These factors hinder to achieve export market and have limited strawberry production in Chile. Effect of boscalid on AbstractIn Chile, gray mold (Botrytis cinerea) and leak (Rhizopus stolonifer) are the major storage diseases of strawberry (Fragaria x ananassa Duch.) that considerably reduce yields and quality, limiting its international commercialization. The effect of preharvest fungicide treatments and postharvest treatments against storage decays was studied. Based on the results obtained, the incidence of B. cinerea and R. stolonifer was significantly lower on 'Camarosa' strawberry fruits treated with boscalid or boscalid + pyraclostrobin between blossom and harvest. Similarly, incidence of B. cinerea and R. stolonifer significantly decreased at 5ºC and 20ºC after immersion treatments with boscalid (600 to 700 mg L -1 ) or cyprodinil + fludioxonil (371 + 250 mg L -1 ). These postharvest treatments provided 5 and 15 days protection against these molds when strawberry fruits were stored at 20ºC and 5ºC, respectively. Fenhexamid (750 mg L -1 ) arrested B. cinerea, but it was ineffective against R. stolonifer. Variable results were obtained with iprodione (750 mg L -1 ). Fungicide treatments had no adverse effect on total soluble content, titrable acidity and firmness. Only boscalid + pyraclostrobin affected the external color of the treated fruits. In conclusion, fungicide treatments using new reduced-risk fungicides can be useful to extend strawberry shelf life for over a 15 day period. However, further research is needed to establish a commercial recommendation.Additional key words: boscalid, cyprodinil, fenhexamid, Fragaria, fungicides, pyraclostrobin. Resumen Efecto de boscalid sobre las podredumbres de la fresa en postcosecha causadas por Botrytis cinerea y Rhizopus stoloniferEn Chile, el moho gris (Botrytis cinerea) y el moho negro algodonoso (Rhizopus stolonifer) reducen los rendimientos y la calidad de la fresa (Fragaria x ananassa Duch.) en pre y postcosecha, limitando su comercialización internacional. En este trabajo se estudió la efectividad de tratamientos de campo y postcosecha sobre el desarrollo de podredumbres, vida útil y cualidades de la fresa conservada a 5ºC y 20ºC. De acuerdo con los resultados obtenidos, la incidencia de B. cinerea y R. stolonifer en postcosecha fue significativamente menor en fruta proveniente de fresas 'Camarosa' tratadas, entre floración y cosecha, con boscalid o boscalid + pyraclostrobin. Del mismo modo, fresas 'Camarosa' tratadas por inmersión en boscalid (600 a 700 mg L -1 ) o cyprodinil + fludioxonil (375 + 250 mg L -1 ), presentaron menor incidencia de B. cinerea y R. stolonifer tanto a 5ºC como a 20ºC. Este tratamiento proteg...

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Section: Introductionmentioning

confidence: 99%

“…Among these fungicides, boscalid (= nicobifen) has been suggested to control B. cinerea and R. stolonifer on strawberry and other fruit crops (Latorre et al, 2002b;Adaskaveg et al, 2005). Boscalid is a carboxamide compound that inhibits succinate ubiquinone reductase in the mitochondrial electron transport chain.…”

Section: Introductionmentioning

confidence: 99%

Effect of boscalid on postharvest decay of strawberry caused by Botrytis cinerea and Rhizopus stolonifer

Sallato

Torres

Zóffoli

et al. 2007

Span. j. agric. res.

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“…As fruit ripen, its invasion by the fungus is very rapid resulting in fruit rot before or after harvest even when environmental conditions at harvest time are not conducive to infection (Adaskaveg et al, 2005). Infected fruit will continue to rot after harvest, whereas the mycelium may directly attack healthy fruit in contact with infected ones.…”

Section: Transfer To a Suitable Hostmentioning

confidence: 99%

“…Under favourable environmental conditions, fruit rot increases to involve larger areas on the fruit and may spread by contact to adjacent fruit either on the tree or in transit and storage. As fruit ripen, its invasion by the fungus is very rapid resulting in fruit rot before or after harvest even when environmental conditions at harvest time are not conducive to infection (Adaskaveg et al, 2005). Fruit infection also takes place after harvest, during transit and storage (Agrios, 2005).…”

Section: Latent Infectionsmentioning

confidence: 99%

“…), where they use "low-risk" fungicides. Materials that were either derivatives of naturally occurring compounds (such as fludioxonil and pyraclostrobin or were discovered by random chemical synthesis and screening for biological activity (such as boscalid, fenhexamid and pyrimethanil were successfully used against brown rot and other fungal rots applied as postharvest treatments (Adaskaveg et al, 2005).…”

Section: Fungicide Treatmentsmentioning

confidence: 99%

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Pest risk assessment ofMonilinia fructicolafor the EU territory and identification and evaluation of risk management options

Rossi¹

2011

EFSA Journal

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The EFSA Panel on Plant Health has delivered a pest risk assessment on the risk posed by Monilinia fructicola to the EU territory and has identified risk management options and evaluated their effectiveness in reducing the risk to plant health posed by this organism. The Panel has also analysed the effectiveness of the special requirements presently listed in Annex IV, Part A, Section I of Council Directive 2000/29/EC, in reducing the risk of introduction of this pest into the EU territory. The Panel concluded that the main pathways for entry into the EU territory are plant material for propagation purposes and fruit of host genera and that, with the exception of dried fruit, the probability of entry is very likely. The probability of establishment is also very likely due to the suitable environmental conditions and to the widespread presence of host species, susceptible for most of the year, on most of the risk assessment area. Cultural practices and control measures currently applied and competition with other Monilinia species cannot prevent the establishment of M. fructicola. The probability of spread is very likely because of the multiple ways of dispersal of the pest. The overall impact in the endangered area is estimated to be moderate. Neither additional cultural measures nor increased fungicide treatments would be needed to control of brown rot in the orchard after the introduction of M. fructicola. © European Food Safety Authority, 2011 KEY WORDSBlossom and twig blight, brown rot, Monilia fructicola, Prunus spp., Rosaceae, stone fruit. Having given due consideration to the evidence, the Panel concludes that: a. Entry of M. fructicola by means of plant propagation material, fresh fruits of susceptible genera and by natural means from infested European non-EU countries is very likely. It is very unlikely in case of dried fruit and natural means from infested non-European countries.In both cases the level of uncertainty is low.b. Establishment of M. fructicola in the risk assessment area is very likely with a low level of uncertainty because of the avaialability of host plants with a long period of susceptibility and of suitable environmental conditions. Competition from other Monilinia species (M. laxa and M. fructigena) and currently applied cultural practices and control measures cannot prevent the establishment of the pest. In addition, the pest has already been detected in several Member States in the risk assessment area (France, Germany, Hungary, Italy, Poland, Romania, Slovenia and Spain).c. Spread of M. fructicola within the risk assessment area is very likely with a low level of uncertainty because of its multiple ways to spread (natural and human assisted), to the wide distribution of host species in the risk assessment area and the absence of effective barriers.

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Fungicides Acting on Signal Transduction

Krmer¹,

Schirmer²

2007

Modern Crop Protection Compounds

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Reduced-risk fungicides help manage brown rot and other fungal diseases of stone fruit

Cited by 40 publications

References 2 publications

Effect of boscalid on postharvest decay of strawberry caused by Botrytis cinerea and Rhizopus stolonifer

Effect of boscalid on postharvest decay of strawberry caused by Botrytis cinerea and Rhizopus stolonifer

Pest risk assessment ofMonilinia fructicolafor the EU territory and identification and evaluation of risk management options

Fungicides Acting on Signal Transduction

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