Major diseases of cashew (Anacardium Occidentale L.) Caused by fungi and their control in Odisha, India

Khatoon, Akhtari; Mohapatra, Ashirbad; Satapathy, Kunja Bihari

doi:10.12692/ijb/11.1.68-74

Cited by 15 publications

(8 citation statements)

References 4 publications

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“…The results of the pathogenicity test are in agreement with those of Wonni et al (2017) who after inoculation of young cashew trees containing 6-8 leaves by P. heterocornis, obtained symptoms similar to those of pestalotia 2-3 weeks later In addition, Uaciquete (2013) obtained similar results with the anthracnose pathogen (Colletotrichum gloeosporioides) in Mozambique on young leaves detached from the cashew tree. Khatoon et al (2017) in India and Nakpalo et al (2017) showed that the isolates were pathogenic on young plants aged six to seven months.…”

Section: Discussionmentioning

confidence: 99%

“…Similar results were found by different authors. Anthracnose (Colletotrichum gloeosporioides), pestalotia leaf spot (Pestalotia heterocornis) and powdery mildew (Oïdium anacardii) have also identified among major diseases attacking cashew trees in Tanzania (NARI, 2009;Msoka, 2017), in Bénin (Afouda et al, 2013), in India (Khatoon et al, 2017) and Kenya (Menge & Marthamakobe, 2016). Drying of the buds (Phomopsus anacardii) has also been reported in Mozambique (Uaciquete, 2013), in Ivory Coast (Nakpalo et al, 2017) and Burkina Faso (Wonni et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

“…In fact, despite pests, more than twelve diseases ares described on cashew in some countries (Mozambique, Benin, Brazil, Ivory Coast, Burundi and Tanzania), among which fungal diseases, such as anthracnose (Colletotrichum gloeosporioides Penz), pestalotia leaf spot (Pestalotia heterocornis) dieback (Lasiodiplodia sp.) and powdery mildew (Oidium anacardii Noack) (Wonni et al, 2017;Nakpalo et al, 2017;Khatoon et al, 2017;Monteiro et al, 2015;Afouda et al, 2013;Adeniyl et al, 2011;NARI, 2009;Cardoso et al,. 2009;Cooke, 2006;Freire et al, 2002;Grundon, 2002;Teixeira, 1988).…”

Section: Introductionmentioning

confidence: 99%

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Major Fungi Diseases of Cashew Trees (Anacardium occidental L.) in Cameroon

Dooh¹,

Asta²,

Bouba³

et al. 2020

JAS

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The culture of cashew (Anacardium occidentale L.) is increasing in the Far North Cameroon. But, the productivity is threatened by the development of diseases in orchads. Therefore, the aim of this study is to identify diseases and pathogens involved in cashew cultivation. The diseases were identified under the basis of the identification keys. The fungal structures were characterized using an optical microscope and the pathogenicity test were carried out. Incidence, severity and prevalence of diseases were assessed in the dry season and the rainy season. Seven diseases and seven pathogens have been identified: anthracnose (Colletotrichum gloeosporioides Penz), pestalotia leaf spot (Pestalotia heterocornis), alternaria (Alternaria solani), drying of buds (Colletotrichum gloeosporioides, Phomopsus anacardii and Curvularia lunata), dieback (Colletotrichum sp. and Lasiodiplodia sp.), blight of leaves (Pestalotia heterocornis and Colletotrichum gloeosporioides) and powdery mildew (Oidium anacardii Noack). Whatever the season; anthracnose, pestalotia leaf spot an drying of buds are diseases with higher incidence (more than 85, 60 and 75% respectively) and higher prevalence. The severity of the diseases varied according to the location and season. Pathogenicity test revealed that all the test fungi were pathogenic to their respective host parts except cashew powder mildew and alternaria. The results of this study represent database for implementation of integrated disease management approaches in Cameroon.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Major Fungi Diseases of Cashew Trees (Anacardium occidental L.) in Cameroon

Dooh¹,

Asta²,

Bouba³

et al. 2020

JAS

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“…The present work identified red rust due to C. virescens in soursop, safou, guava and cocoa in the surveyed sites. Several authors have identified red rust due to C. virescens in other species [18,19]. The presence of the alga is favoured by average monthly temperatures and rainfall of 23 °C and 127 mm respectively [15].…”

Section: Discussionmentioning

confidence: 99%

Red rust disease occurring in some fruits species in Cameroon

et al. 2022

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The knowledge of the red rust disease remains limited in Cameroon, with a view to developing a control method. This work consisted in studying red rust on some fruit species such as Annona muricata (soursop), Dacryodes edulis (safou), Psidium guajava (guava) and Theobroma cacao (cocoa). Diseased leaves were collected in the field in the Maham site, in west region of Cameroon.The symptomatology of disease (colour, number and diameter of lesions) was studied. Coefficient of variation ( %) was calculated. The incidence and severity of the disease was assessed in the different orchards surveyed. The measurement of the different structures of the thallus (length, width of sporangia and sporangiophores) was carried out using a microscope with a micrometer. The disease is characterized by circular orange to orange-brown spots on the upper surfaces and rarely on the lower surface. Number of lesions, varied from 245–510 respectively with D. edulis and T cacao. Lesion diameters varied from 0.1−1 cm, 0.1−7 cm, 0.1−1.5 cm in safou (African pear), guava and soursop respectively. The length and width of sporangiophores varied from 280.5−714×10.2−25.5 µm for A. muricata, 408−612×15.3−25.5 µm for Dacryodes edulis, 433.3−663×15.3−20.4 µm for P. guajava and 484.5−612×20.4−35.7 µm for T. cacao. The number of sporangiophores varied from 1 to 11 at the maximum threshold. But, number of sporangia was the same in the four species, 1−9. The pathogenicity test was negative. The data measurements show that the specie observed is Cephaleurus virescens which is a parasitic alga. The data obtained are a basis for the development of an integrated control strategy against this emerging disease

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“…Today several diseases have been shown to be severe enough to cause cashew trees to suffer major losses. This farm crop is reported to be attacked by several fungi, which reduces productivity [35]. Numerous biotic and abiotic restrictions are a hazard to cashew, causing severe output losses.…”

Section: Introductionmentioning

confidence: 99%

Early detection and control of anthracnose disease in cashew leaves to improve crop yield using image processing and machine learning techniques

Sudha¹,

Kumaran²

2023

SIViP

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Agriculture is one of the primary pillars powering India's economy. It is alarming to note that India's agriculture rate is declining steeply. Climate change, environmental pollution, and soil erosion are well-known factors affecting crop productivity. The increasing prevalence of plant diseases is also a signi cant contributing factor affecting agriculture.Early disease detection and mitigation actions based on identi ed diseases in the plants are critical in increasing crop productivity. This study considers a machine-learning model for detecting disease in cashew leaves. This work concentrates on Anthracnose disease, which leads to severe yield loss when it affects the cashew plant. In this regard, cashew leaves are collected and used to train various machine learning classi ers to identify and classify the disease. This work focuses on the segmentation and classi cation of leaves using various Machine Learning models. For this,

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Major diseases of cashew (Anacardium Occidentale L.) Caused by fungi and their control in Odisha, India

Cited by 15 publications

References 4 publications

Major Fungi Diseases of Cashew Trees (Anacardium occidental L.) in Cameroon

Major Fungi Diseases of Cashew Trees (Anacardium occidental L.) in Cameroon

Red rust disease occurring in some fruits species in Cameroon

Early detection and control of anthracnose disease in cashew leaves to improve crop yield using image processing and machine learning techniques

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