Antagonistic Effect of Bio-agents Against Three Potato Fungal Diseases and Their Fungicidal Sensitivity

Lal, Mehi; Singh, Ajay Pratap; Tomar, S. M. S.; Hussain, Touseef; Sharma, Sanjeev; Kaushik, S. K.; Singh, B. P.

doi:10.5958/j.2229-4473.26.2.098

Cited by 6 publications

(5 citation statements)

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“…and Rhizoctonia solani. All bio-agents inhibited the mycelial growth of the pathogens in comparison to control [94]. The defense enzymes viz., chitinase and β.1, 3-glucanase activities of B. subtilis and T. harzianum were well reported against late blight of potato and early and late blight of tomato [95,96].…”

Section: Biological Control/eco-friendly Managementmentioning

confidence: 88%

Management of Late Blight of Potato

Lal¹,

Sharma²,

Yadav³

et al. 2018

Potato - From Incas to All Over the World

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Potato (Solanum tuberosum L.) is the most important crop and Phytophthora infestans (Mont.) de Bary is the oomycete, which was responsible for infamous Irish potato famine during 1843-45 and it continues to cause worldwide devastation of the potato. Moreover, this disease is re-emerging in the forms of different genotypes and causes huge yield loss in the potato crop. The factors which are responsible for huge yield loss of potato are applied improper management strategies and pathogen behavior. Management strategies includes; forecasting, cultural, biological, varietal and chemical management. Forecasting is the better option for management of late blight, if accurately forecasted and promptly information reaches to the end users. As infected potato tubers cause the primary sources of infection in next season. The cultural practices will also helpful in reducing inoculum load and managing the disease. The host resistance is best option for management of this disease. However, due to very divers' virulence nature of P. infestans; the resistance of the varieties is wiped out within a decade. Several fungicides including contact, systemic and translaminar have been evaluated from time to time; however, the pathogen has shown a remarkable capacity for change with respect to host genotype and fungicides. Nowadays biological control is gaining importance due to its eco-friendly in nature.

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Section: Biological Control/eco-friendly Managementmentioning

confidence: 88%

Management of Late Blight of Potato

Lal¹,

Sharma²,

Yadav³

et al. 2018

Potato - From Incas to All Over the World

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“…Fungicides of different formulations of inorganic and organic materials which have the potentials of growth inhibition, killing of zoosporangia/ zoospores and mycelium of the causative organism [25]. [31]. Bacillus sp.…”

Section: Resultsmentioning

confidence: 99%

The Potency of Unassociated Trichoderma spp and the Fungicides Antagonistic of the Late Blight of Potato by Phytophthora infestans (Mont.) De-Bary

Bansal

Biswas

Baboo

et al. 2021

IJPSS

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The potato (Solanum tuberosum) is one of the most important vegetable crops in the world, belonging to the family Solanaceae and is an important starchy food crop in both sub-tropical and temperate regions. Potato plants are subjected to attack by numerous diseases wherever the crop is grown. Among them, late blight of potato caused by Phytophthora infestans (Mont.) de-Bary is of major cause of concern in potato production at present. An experiment was conducted in the Department of Plant Pathology, College of Agriculture, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur. The antifungal activity of different fungicides was evaluated in-vitro through the food poison technique. The experimental finding showed that radial growth of mycelium of Phytophthora infestans was inhibited by fungicides over control. At 100 ppm, the minimum radial growth of mycelium was found in Equation Pro treatment as 5.3, 8.2, 11.4, 14.2, 16.2, 18.4 and 22.6 mm over control against 12.3, 19.1, 26.1, 35.9, 42.5, 51.4 and 64.8 mm at 1, 2, 3, 4, 5, 6 and 7 days after inoculation respectively. Similarly, at 500 and 1000 ppm the minimum radial growth of mycelium was found in Equation Pro treatment. Efficacy of bio-control agents on the radial growth of Phytophthora infestans was evaluated using Dual Culture Methods. Among the different concentrations, 1000 ppm was found most effective than 100 and 500 ppm. Among the different bio-agents, Trichoderma harzianum able to reduced maximum radial mycelial growth of fungus showing 4.6, 8.8, 10.1, 13.2, 15.6, 19.3 and 23.5 mm against 12.3, 19.1, 26.1, 35.9, 42.5, 51.4 and 64.8 mm at 1, 2, 3, 4, 5, 6 and 7 days after inoculation, respectively.

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“…Aspergillus flavus, Aspergillus niger, Penicillium sp., Trichoderma virens and Trichoderma harzianum showed positive inhibition of mycelial growth of P. infestans, Fusarium spp. and Rhizoctonia solani under in vitro conditions Table 1 [31]. One hundred fifty-two endophytic fungi were isolated from healthy tissues of vegetable plants, and only 23 (15%) isolates showed anti-oomycete activity against tomato late blight and in vivo [32].…”

Section: Late Blight Of Potatomentioning

confidence: 99%

The Use of Bio‐Agents for Management of Potato Diseases

Lal¹,

Yadav²,

Singh³

et al. 2016

Plant Growth

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Potato is an important food crop in the world as well as in India. It is being affected by different pathogens, viz. fungi, bacteria, viruses and nematodes. These pathogens may cause significant yield losses of the crop, if proper protection measures have not been applied. Among potato pathogens, Phytophthora infestans, Alternaria solani, Rhizoctonia solani and Fusarium spp. are the major pathogens in the fungal group, whereas Ralstonia solanacearum, Pectobacterium spp. and Streptomyces spp. are in the bacterial group. For management of these pathogens, various methods, that is, chemical control, biological control, resistant varieties, cultural control and physical control, are applied. Resistant varieties are the best and cheapest method for managing the diseases. However resistant varieties are break down their resistant over the years and moreover against some pathogen absolute resistant are not available. Chemical management is the second best option for managing the diseases, due to continuous and irrational use of the chemicals; pathogens have developed resistance against certain class of fungicides/bactericides. Moreover, these chemicals also assist in environmental pollution and toxicity in the produce. Bio-agents are naturally occurring living organisms, which are found in rhizosphere, phylloplane, etc. These bio-agents help in not only managing the diseases but also increasing the crop yield. Therefore, the use of bio-agents for biological management of potato crops is the focused research area worldwide.

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Antagonistic Effect of Bio-agents Against Three Potato Fungal Diseases and Their Fungicidal Sensitivity

Cited by 6 publications

References 0 publications

Management of Late Blight of Potato

Management of Late Blight of Potato

The Potency of Unassociated Trichoderma spp and the Fungicides Antagonistic of the Late Blight of Potato by Phytophthora infestans (Mont.) De-Bary

The Use of Bio‐Agents for Management of Potato Diseases

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