Characterization of Isolates of Phytophthora colocasiae Collected from Andhra Pradesh and Telangana Causing Leaf Blight of Taro

Padmaja, G.; Devi, G. Uma; Mahalakshmi, B. K.; Sridevi, D.

doi:10.20546/ijcmas.2017.610.229

Cited by 4 publications

(6 citation statements)

References 3 publications

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“…In the field, P. colocasiae is spread mainly by zoospores and sporangia. The propagules are short-lived in the infected leaves and tissues and are carried by water to a host through rain splashes [47,50]. Taro corms are, however, rarely harvested from the field and can sustain the pathogen.…”

Section: Taro Production Constraints In Africamentioning

confidence: 99%

“…The major biotic stress for taro is TLB, a disease caused by P. colocasiae; it is an oomycete disease with highly devastating effects [44]. Phytophthora colocasiae was first reported in Java by Raciborski [45] and has now spread all over the tropics [46,47]. The disease thrives where day and night temperatures range between 25-28 • C and 20-22 • C, respectively, and can assume epidemic proportions all year round under favorable conditions [48].…”

Section: Taro Production Constraints In Africamentioning

confidence: 99%

“…This can happen within two hours at a favorable temperature of 20 • C and a minimum humidity of 90%. At an ideal temperature of 24-27 • C, symptoms present 2-4 days after penetration of the germ tube [46,47]. Phytophthora colocasiae is heterothallic with two mating types, A1 and A2, and can produce oospores via sexual reproduction [49].…”

Section: Taro Production Constraints In Africamentioning

confidence: 99%

“…These programs have focused on hybridization to develop new cultivars with higher yields, better taste, and improved resistance to TLB [106,107]. Hybridization in taro is promising, but it is labor intensive and lengthy in terms of the induction of flowering (although gibberellic acid has been used to induce flowering in taro [18,47,75]), pollination, and seed harvesting. It takes 10 years or more from pollination for a new improved cultivar to be developed [108].…”

Section: Breeding Efforts In Taromentioning

confidence: 99%

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Taro in West Africa: Status, Challenges, and Opportunities

et al. 2022

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Taro is an ancient nutritional and medicinal crop woven into the fabric of the socio-economic life of those living in the tropics and sub-tropics. However, West Africa (WA), which has been a major producer of the crop for several decades, is experiencing a significant decline in production as a result of taro leaf blight (TLB), a disease caused by Phytophthora colocasiae Raciborski. A lack of research on taro in WA means that available innovative technologies have not been fully utilized to provide solutions to inherent challenges and enhance the status of the crop. Improvement through plant breeding remains the most economically and environmentally sustainable means of increasing the productivity of taro in WA. With this review, we provide insights into the importance of the taro crop in WA, evaluate taro research to date, and suggest how to address research gaps in order to promote taro sustainability in the region.

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Section: Taro Production Constraints In Africamentioning

confidence: 99%

Section: Taro Production Constraints In Africamentioning

confidence: 99%

Section: Taro Production Constraints In Africamentioning

confidence: 99%

Section: Breeding Efforts In Taromentioning

confidence: 99%

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Taro in West Africa: Status, Challenges, and Opportunities

et al. 2022

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“…Biological control methods such as the use of microorganisms, eg. Pseudomonas fluorescens, Trichoderma viride have also been applied [56]. Chemical control involving the use of systemic and protectant fungicides such as phosphorus acid (Foschek); copper (e.g.…”

Section: Management Of Phytophthora Colocasiaementioning

confidence: 99%

Phytophthora Diseases Prevalence, Its Effects and Controls in Ghana

Frimpong¹,

Ampadu²,

Oppong³

et al. 2021

Agro-Economic Risks of Phytophthora and an Effective Biocontrol Approach

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The success of the UN Sustainable Development Goals in reducing hunger and poverty is limited by crop losses. Globally, plant pests and diseases account for 40% yield losses which threatens food and nutrition security, livelihoods of citizenry and erode the resources of local and national economies. Phytophthora diseases are among the most important diseases in sub-Saharan Africa which result in severe socio-economic consequences. Roots and tubers and cash commodity crops are important staples and foreign exchange earner crops in Ghana which are significantly challenged by the incidence and severity of Phytophthora diseases. To ensure food availability, safeguard the local financial ecosystem and protect the environment, innovative and sound management practices are needed and this chapter reviews the different Phytophthora diseases on crops; more specifically with (cocoa and taro as case studies), the consequences and available management options that can be applied to manage the disease situation in Ghana.

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Management of foot rot (Phytophthora capsici) disease of black pepper (Piper nigrum L.) through fungicides and cultural practices in Southwestern Ethiopia

Jibat,

Asfaw

2023

Int. J. Agril. Res. Innov. & Tech.

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The pathogen Phytophthora capsici, which causes black pepper foot rot, is the most detrimental disease that affects black pepper productivity and lowers qualitative and quantitative spike yields in southwest Ethiopia. The effectiveness of several fungicides and cultural methods against Phytophthora capsici in black pepper was tested in a field experiment. Five commercial fungicides and cultural practices were examined, and a natural Phytophthora capsici infection was noted. Disease incidence was determined by visually observing leaf blight, spike infection, leaf shedding, and vine yellowing. The most effective fungicide, with a disease incidence of 14.3%, was Koka blue 50 WG (Copper oxychloride) spraying when combined with cultural approaches. More 720 WP (Mancozeb + Cymoxanil), a combination of cultural practices and 19.1% disease incidence, came next. Agro-laxyl 63.5 WP (Metalaxyl + Mancozeb) and Progress 250 EC (Propiconazole 25%) combined with cultural practices were also effective against Phytophthora infection and found better than only cultural practices applied plot and control. Int. J. Agril. Res. Innov. Tech. 13(1): 48-50, June 2023

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Characterization of Isolates of Phytophthora colocasiae Collected from Andhra Pradesh and Telangana Causing Leaf Blight of Taro

Cited by 4 publications

References 3 publications

Taro in West Africa: Status, Challenges, and Opportunities

Taro in West Africa: Status, Challenges, and Opportunities

Phytophthora Diseases Prevalence, Its Effects and Controls in Ghana

Management of foot rot (Phytophthora capsici) disease of black pepper (Piper nigrum L.) through fungicides and cultural practices in Southwestern Ethiopia

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