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Detection and epidemiological progress of quiescent avocado diseases Ciência Rural
Fischer,Ivan Herman; Moraes,Matheus Froes de; Firmino,Ana Carolina; Amorim,Lilian.
ABSTRACT: One of the major problems in the commercialization of avocados is the incidence of postharvest diseases, especially anthracnose (Colletotrichum spp.) and stem-end rot (Lasiodiplodia theobromae, Fusicoccum aesculi and Neofusicoccum spp.). As there is a lack of epidemiological information on these pathosystems, the objective of this study was to establish a method to detect quiescent infections and characterize their temporal progression and spatial pattern in a commercial orchard. Detection of quiescent infections was evaluated in flowers and fruits that were immature and in commercial harvest stage, treated with paraquat, ethrel or water. Treatment of flowers and immature fruits with paraquat led to rapid detection of Colletotrichum spp. In two...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Persea americana; Postharvest rot; Epidemiology.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000800151
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EFFECT OF CONVENTIONAL AND ALTERNATIVE PRODUCTS ON POSTHARVEST DISEASE CONTROL IN AVOCADOS Rev. Bras. Frutic.
Fischer,Ivan Herman; Moraes,Matheus Froes de; Palharini,Maria Cecília de Arruda; Fileti,Mirian de Souza; Cruz,Juliana Cristina Sodário; Firmino,Ana Carolina.
ABSTRACT Postharvest diseases constitute a serious problem for avocado commercialization. Thus, the present study aimed to evaluate the effect of conventional and alternative products in controlling diseases affecting ‘Hass’ avocados in the field and in the postharvest by carrying out physicochemical characterization of fruits subjected to postharvest treatments. In the field, besides the management adopted by the farmer, seven products were sprayed three times during fruiting for evaluation. Postharvest products were diluted in water or in oxidized polyethylene wax and shellac. Water treatments with potassium phosphite, Soil-Set®, chlorine dioxide, thyme essential oil, sodium bicarbonate, lemon grass essential oil and thiabendazole reduced the incidence...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rot; Persea americana; Colletotrichum; Control disease.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000100301
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