Thiabendazole and 2-aminobutane as post-harvest fungicides for citrus

1968 ◽  
Vol 8 (33) ◽  
pp. 440 ◽  
Author(s):  
JA Seberry ◽  
Robyn A Baldwin
Keyword(s):  
Penicillium Digitatum ◽  
Fungicide Treatment ◽  
Mould Fungus ◽  
Post Harvest ◽  
Green Mould ◽  
Low Levels

Thiabendazole, 2-aminobutane (phosphated), and sodium ortho-phenylphenate were compared as dip treatments for the control of Penicillium digitatum Sacc. in oranges. Fruit from three orchards was surface inoculated with spores of the green mould fungus 48 hours before fungicide treatment. Thiabendazole, dried on the fruit at a concentration of 0.01 per cent, significantly reduced mould. At concentrations of 0.025 per cent and higher, thiabendazole dried-on gave more effective mould control than 0.5 per cent 2-aminobutane dried-on and reduced wastage to the very low levels achieved with double sodium orthophenylphenate and double 2-aminobutane treatments.

Comparison of thiabendazole and benomyl as post-harvest fungicides for wastage control in long term lemon storage

1975 ◽  
Vol 15 (72) ◽  
pp. 108 ◽  
Author(s):  
BL Wild ◽  
LE Rippon ◽  
JA Seberry
Keyword(s):  
Penicillium Digitatum ◽  
Skin Colour ◽  
Postharvest Diseases ◽  
Ambient Temperatures ◽  
Post Harvest ◽  
Deep Yellow ◽  
Green Mould

Thiabendazole and benomyl were compared for their effectiveness in controlling major postharvest diseases of lemons, caused by green mould (Penicillium digitatum Sacc.) and stem-end rot (Diaporthe citri (Faw.) Wolf). The lemons were stored at ambient temperatures and at 12�C and examined over a period of 26 weeks. Results showed benomyl gave excellent and better control of the diseases than TBZ. Although benomyl treated fruit was sound, skin colour was deep yellow and unattractive indicating the need for further research into methods of improving fruit appearance during long periods of storage.

scholarly journals Detection of Green Mould Rot Infection of Citrus Fruit by X-ray Scanning Non-Destructive Technology

2017 ◽  
Vol 8 ◽  
Author(s):  
Dhondiram Panditrao Gadgile ◽  
CHANDRAKANT PADMAKAR JOSHI ◽  
VIKAS MADHUKARRAO SHINDE ◽  
PARSHURAM BABARAO KACHARE
Keyword(s):  
Fungal Infection ◽  
Key Words ◽  
Citrus Fruit ◽  
Penicillium Digitatum ◽  
Spore Suspension ◽  
X Ray ◽  
Post Harvest ◽  
Green Mould ◽  
Non Destructive ◽  
Post Harvest Disease

<p><strong>ABSTRACT</strong> <strong></strong></p><p>Green mould rot is important post-harvest fungal disease of citrus. It is caused by <em>Penicillium digitatum. </em>To study the detection of fungal infection in citrus fruit by X-ray scanning technique<strong>, </strong>the spore suspension of <em>Penicillium </em><em>digitatum </em>was inoculated by sterilized disposable syringe in citrus fruit in aseptic condition.  Healthy citrus without inoculation was treated as control. Infection of green mould rot was detected by X-ray scanning nondestructive technology.</p><p><strong>Key words:</strong> <em>Penicillium digitatum</em>, Citrus, X-ray scanning, Post-harvest disease.  </p>

scholarly journals PENGARUH PERLAKUAN SORTASI, NATRIUM HIPOKLORIT DAN FUNGISIDA PADA KACANG TANAH UNTUK MENGELIMINASI KONTAMINASI ASPERGILLUS FLAVUS

2005 ◽  
Vol 5 (1) ◽  
pp. 58-65
Author(s):  
Sholeh Avivi
Keyword(s):  
Aspergillus Flavus ◽  
Combination Treatment ◽  
Rapid Growth ◽  
Minimum Amount ◽  
Wide Spread ◽  
Peanut Seed ◽  
Tropical Condition ◽  
Fungicide Treatment ◽  
Aspergillus Infection ◽  
Post Harvest

The Effect of Sorting, Sodium hypochloride (NaClO), and Fungicide Treatment on Peanut  in Elimination  the  Aspergillus flavus Contamination.  The humid tropical condition of Indonesia, the post harvest treatment, and the storage practices favour rapid growth and wide spread Aspergillus infestation on peanut. The objectives of this research was to find the best technique in controlling the Aspergillus infection on peanut.  To achieve those objectives, complete randomised design in factorial with three factors was applied.  The factors were grading and colour sorting (A1 = grading and colour sorting;  A2 = without grading and colour sorting), NaClO blanching (B1 = without blanching; B2 = 1.25% NaClO blanching; B3=2.5% NaClO blanching), and Benlate T-20 WP treatment (C1 = 2,5 g/L; C2 = 3 g/L;  C3 = 3,5 g/L).  The result showed that the best combination treatment was A2B2C3 with the minimum amount of spore on peanut seed.  With those combination treatment we concluded that the grading and colour sorting, the 1.25% NaClO blanching, and the application of 3,5 g/L Benlate T-20 WP could reduced the Aspergillus contamination up to 80% compare with A1B1C3 treatment.

scholarly journals Developing Penicillium digitatum Management Strategies on Post-Harvest Citrus Fruits with Metabolic Components and Colonization of Bacillus subtilis L1-21

2022 ◽  
Vol 8 (1) ◽  
pp. 80
Author(s):  
Yongmei Li ◽  
Mengyuan Xia ◽  
Pengbo He ◽  
Qiaoming Yang ◽  
Yixin Wu ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Culture Filtrate ◽  
Management Strategies ◽  
Citrus Fruit ◽  
Inhibition Zone ◽  
Penicillium Digitatum ◽  
Antifungal Compounds ◽  
Fruit Peel ◽  
Post Harvest

Citrus is among the most important plants in the fruit industry severely infected with pathogens. Citrus green mold caused by Penicillium digitatum is one of the most devastating diseases during post-harvest stages of citrus fruit. In this study, a potential endophyte Bacillus subtilis L1-21, isolated from healthy citrus plants, was assessed for its biocontrol activity against the pathogen P. digitatum. Based on an in vitro crosstalk assay, we suggested that B. subtilis L1-21 inhibits the pathogen with an inhibition zone of 3.51 ± 0.08 cm. Biocontrol efficacy was highest for the fermented culture filtrate of B. subtilis L1-21. Additionally, using GC-MS analysis, 13 compounds were detected in the extract of this endophyte. The culture filtrate in Landy medium could enlarge and deform pathogen spores and prevent them from developing into normal mycelium. Accordingly, the Landy culture filtrate of B. subtilis L1-21 was stable in the temperature range of 4–90 °C and pH of 3–11. Further, MALDI-TOF-MS for B. subtilis L1-21 detected surfactin, fengycin, bacillaene and bacilysin as potential antifungal compounds. GFP-tagged B. subtilis L1-21 easily colonized in citrus fruit peel and pulp, suggesting its role in eliminating the fungal pathogen. Altogether, it is highly expected that the production of antifungal compounds, and the colonization potential of B. subtilis L1-21 are required against the post-harvest P. digitatum pathogen on citrus fruit.

scholarly journals Salicylic acid and jasmonic acid can suppress green and blue moulds of citrus fruit and induce the activity of polyphenol oxidase and peroxidase

2019 ◽  
Vol 31 (1) ◽  
pp. 195-204 ◽  
Author(s):  
Anam Moosa ◽  
Shahbaz Talib Sahi ◽  
Sajid Aleem Khan ◽  
Aman Ullah Malik
Keyword(s):  
Salicylic Acid ◽  
Jasmonic Acid ◽  
Disease Severity ◽  
Polyphenol Oxidase ◽  
Disease Incidence ◽  
Citrus Fruit ◽  
Disease Development ◽  
Post Harvest ◽  
Blue Mould ◽  
Green Mould

AbstractThe ability of salicylic acid and jasmonic acid to suppress post-harvest infection with green mould Penicillium digitatum and blue mould P. italicum on three citrus species Citrus reticulata ‘Kinnow’, C. limon ‘Meyer Lemon’, and C. limetta ‘Mosambi’ was evaluated in a dose-response study. Salicylic acid (SA) and jasmonic acid (JA) were applied to the fruits as a post-harvest dip treatment followed by wound inoculation with the pathogens. Both resistance inducers caused a significantly lower disease severity compared with the infected but non-treated control, whereas disease incidence was not significantly lower than in the control. The efficacy of both SA and JA in reducing disease severity was concentration-dependent; the use of higher concentrations resulted in a greater degree of suppression. All the Citrus species tested in this study showed different responses in terms of disease development. C. limon ‘Meyer Lemon’ showed the highest disease development, and C. limetta ‘Mosambi’ the lowest. To get an insight into the mechanisms underlying the increase in resistance, the activity of defence-related enzymes – peroxidase (POD) and polyphenol oxidase (PPO) – was recorded in SA- and JA-treated fruit peelings. The activity of both enzymes was directly proportional to the concentration of the SA and JA applications. The highest activity of PPO and POD was observed in C. reticulata ‘Kinnow’ and the lowest in C. limon ‘Meyer Lemon’ fruits. This study is the first to document an increase in the activity of PPO and POD in SA- and JA-treated Citrus species in the presence of blue mould and green mould pathogens.

Antifungal Activities of the Essential Oils on Post-harvest Disease Agent Penicillium digitatum

2004 ◽  
Vol 8 (1) ◽  
pp. 25-29 ◽  
Author(s):  
E. Mine Soylu ◽  
Fatih M. Tok . ◽  
Soner Soylu . ◽  
Alpaslan D. Kaya . ◽  
Gulsun Akdemir Ev
Keyword(s):  
Essential Oils ◽  
Penicillium Digitatum ◽  
Antifungal Activities ◽  
Post Harvest ◽  
Disease Agent ◽  
Post Harvest Disease

scholarly journals RESÍDUOS DE 14C-PROCHLORAZ EM MANGAS IRRADIADAS

2001 ◽  
Vol 11 ◽  
Author(s):  
MARIA APARECIDA COSTA ◽  
VALDEMAR LUIZ TORNISIELO ◽  
JULIO MARCOS MELGES WALDER
Keyword(s):  
Gamma Radiation ◽  
Degradation Product ◽  
Radiation Treatment ◽  
Refrigerated Storage ◽  
Post Harvest ◽  
Brazilian Legislation ◽  
Low Levels

O objetivo deste trabalho foi avaliar os níveis residuais de Prochloraz aplicado em mangas, na pré e pós-colheita após o tratamento com radiação. Os frutos foram submetidos à radiação gama na dose de 1,0 kGy visando verificar se a mesma induziu a degradação do fungicida. As mangas tratadas na pós-colheita foram armazenadas por 21 dias a 12 °C. Os resíduos de Prochloraz não apresentaram decréscimo durante o período de carência (21 dias) estabelecido pela Legislação Brasileira de Agrotóxicos. O armazenamento refrigerado (12 °C) e a irradiação gama também não contribuíram para a degradação do fungicida. O Prochloraz ficou retido principalmente na casca (média = 1,64 µg/g), que funcionou como barreira à contaminação da polpa (média = 0,06 µg/g). O produto de degradação, formado nas cascas das mangas tratadas na pós-colheita, foi identificado como sendo o BTS 44596. Os metabólitos, encontrados em níveis baixos, confirmaram a ocorrência de baixa degradação do fungicida em mangas. 14C-PROCHLORAZ RESIDUES IN IRRADIATED MANGOES Abstract The aim of this work was to evaluate the Prochloraz residual levels applied in mangoes, in pre and post-harvest after radiation treatment. The fruits were submitted to gamma radiation with of 1,0 kGy dose, aiming to verify if it induces the fungicide degradation. Treated post-harvest mangoes were stored, at 12 0C during 21 days. Prochloraz residues did not present reduction after safe period (21 days), established by the Brazilian legislation on agrochemicals. The refrigerated storage (12 0C) and the gamma radiation also did not contribute to the degradation of the fungicide. Prochloraz was mainly retained in the peels (mean = 1,64 µg/g) which served as barrier to the pulp (mean = 0,06 µg/g) contamination. The degradation product, formed in peels of post-harvest treated mangoes was the metabolite BTS 44596. The metabolites found in very low levels, confirm that low fungicide degradation occurs in mangoes.

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