Chemical Control of Post-Harvest Diseases of Mango: The Effect of Fludioxonil and Prochloraz on Soft Brown Rot, Stem-End Rot and Anthracnose

Swart, S. H.; Serfontein, J. J.; Swart, G.; Labuschagne, C.

doi:10.17660/actahortic.2009.820.64

Cited by 24 publications

(14 citation statements)

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“…These results indicate that fludioxonil is more effective than prochloraz in controlling SER caused by Lasiodiplodia in Pinkerton avocado fruits. This observation is in agreement with the results reported in recent studies, demonstrating fludioxonil superiority over prochloraz in controlling SER caused by Lasiodiplodia in mango fruit [13,[15][16][17].…”

Section: Effect Of Postharvest Application Of Fungicides On Ser Causesupporting

confidence: 93%

Postharvest Fungicide for Avocado Fruits: Antifungal Efficacy and Peel to Pulp Distribution Kinetics

Shimshoni

Bommuraj

Chen

et al. 2020

Foods

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Postharvest application of fungicides is commonly applied in order to reduce food loss. Prochloraz is currently the only postharvest fungicide registered in Israel and Europe in avocado fruits. Due to its unfavorable toxicological properties, prochloraz will be banned from the end of 2020 for future postharvest usage and therefore a substitute candidate is urgently warranted. Fludioxonil, a relatively safe, wide spectrum fungicide, is approved in Europe and Israel for postharvest use in various fruits, but not avocado. Hence, fludioxonil has been evaluated in the present study as a potential substitute for prochloraz in avocado. The objectives of the present study were to determine fludioxonil efficacy against common fungal infestations in avocado and distribution kinetics between peel and pulp in comparison to prochloraz. At the same concentration range (75–300 µg/L), fludioxonil was as effective as prochloraz in inhibiting postharvest decay, while in the early season cultivars, suffering mainly from stem-end rot, it exhibited a better decay control than prochloraz. Fludioxonil and prochloraz displayed negligible and undetected pulp levels, respectively, due to low peel penetrability. Taken altogether, fludioxonil was found to be a suitable candidate for replacing prochloraz as a postharvest fungicide in avocado.

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Section: Effect Of Postharvest Application Of Fungicides On Ser Causesupporting

confidence: 93%

Postharvest Fungicide for Avocado Fruits: Antifungal Efficacy and Peel to Pulp Distribution Kinetics

Shimshoni

Bommuraj

Chen

et al. 2020

Foods

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“…Sportak (prochloraz, research sample only; Bayer Crop Science, Raleigh, NC) in preliminary in vitro studies and 1 year of field data (data not shown) was by far the best effective fungicide against C. gloeosporioides. It is widely used for managing postharvest disease on mango (Coates et al 1993;Swart et al 2009) and avocado (McMillan and Narayanan 1991). This product is not available for commercial use in the United States but could be an important component of an IPM program where it is registered, especially when combined with emerging sources of host resistance (Mangandi et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Epidemiological Significance of Crown Rot in the Fruiting Field in Relation to Colletotrichum gloeosporioides Infection of Strawberry Nursery Plants

Rahman

Louws

2017

Plant Disease

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Anthracnose crown rot (ACR), caused by Colletotrichum gloeosporioides, is a serious disease of strawberry (Fragaria × ananassa) in the southeastern United States, and there is a need to determine the link between nursery and fruiting-field disease risk. A 2-year study in 2007, repeated in 2008, was conducted at the North Carolina State University Horticultural Crops Research Station, Clinton, using ‘Chandler’, the most popular cultivar in North Carolina and one that is highly susceptible to ACR. Mother plants in a summer nursery were inoculated midseason with three pathogenic strains of C. gloeosporioides at an incidence level of 0, 5, 10, or 25%. Asymptomatic runner plants were selected at maturity (85 to 88 days after inoculation) from the nursery in early to mid-October from within a 0.5-m (inner) or 0.5- to 1.0-m (outer) radius around inoculated mother plants and planted into a plasticulture fruiting field system, with fruit harvest in April to June the following spring. Plants collected from the 25%-inner treatment had the greatest area under the disease progress curve (AUDPC) values, with a terminal ACR-related plant mortality of 32 and 20% by the end of fruit harvest and marketable yield losses of 30.5 and 30.2% in 2007–08 (Yr1) and 2008–09 (Yr2) seasons, respectively. All treatments increased AUDPC values compared with noninoculated treatments except the 10%-outer (O) and 5%-O treatments in Yr1 and Yr2, respectively. Marketable yield decreased 291.6 kg/ha for every percent increase in inoculum level (i.e., 0 to 25%, R2 = 0.696, P = 0.001). Levels of quiescent infection (QI) incidence (percentage of sampled leaves) assessed 25 to 28 days before digging runner plants also directly affected yield. For example, yield decreased 131.0 kg/ha for every percent increase in QI incidence in mother plants (R2 = 0.744, P = 0.001). Immersion of plants in fungicide solutions prior to planting decreased AUDPC values and improved plant stand by 7 to 11% but did not affect marketable yield compared with controls. This study provides results that can enable nursery and fruit growers to assess risk and implement mitigation measures to limit nursery plant and fruit yield losses.

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“…Fungal pathogens of mango such as C. gloeosporioides and Lasiodiplodia theobromae are of major concern to the industry (Swart et al, 2002). Currently, pack houses use combinations of hot-water treatments and synthetic fungicide dips (Johnson et al, 1995) or modifiedatmosphere packaging (MAP) (Kim et al, 2007) to prevent decay and extend shelf life.…”

Section: Mangomentioning

confidence: 99%

Essential Oils and Other Plant Extracts as Food Preservatives

Régnier

Combrinck

Plooy³

2012

Progress in Food Preservation

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The safety and management of food during its processing, transport and storage are prerequisites for modern food processing. Despite the worldwide development of new ranges of preservation techniques, the microbiological safety of meat, fruits and vegetables, as well as dairy products, continues to be of major concern to both consumers and the food industry. Several outbreaks of foodborne pathogens during the last two decades have focused public attention on food safety. Environmental and human health concerns with regard to current practices involving synthetic compounds have further compelled the food industry to develop improved strategies. Natural products have been investigated as alternative biocides and antioxidants in an effort to rule out the use of synthetic preservatives, which are regarded as detrimental to health and the environment. Various applications of essential oils and plant extracts as natural antioxidants and antimicrobial agents have been reported and the use of such extracts have been validated by many researchers in several countries. This chapter describes the use of essential oils and other plant extracts as food preservatives, with emphasis on the fruit and vegetable post-harvest environment. The antifungal effects of these extracts on the control of fruit and vegetable pathogens are covered in detail. In addition, the application of plant extracts in the control of bacterial biofilms, which are more resistant than their planktonic counterparts to therapeutic intervention such as antibiotics, is also summarized. Finally, an overview regarding the importance of medicinal indigenous plants from developing countries as natural biocides and antioxidants is provided.

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Chemical Control of Post-Harvest Diseases of Mango: The Effect of Fludioxonil and Prochloraz on Soft Brown Rot, Stem-End Rot and Anthracnose

Cited by 24 publications

References 0 publications

Postharvest Fungicide for Avocado Fruits: Antifungal Efficacy and Peel to Pulp Distribution Kinetics

Postharvest Fungicide for Avocado Fruits: Antifungal Efficacy and Peel to Pulp Distribution Kinetics

Epidemiological Significance of Crown Rot in the Fruiting Field in Relation to Colletotrichum gloeosporioides Infection of Strawberry Nursery Plants

Essential Oils and Other Plant Extracts as Food Preservatives

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