scholarly journals Integrated disease management approaches for control of late blight of potato and enhancing the growth of potato

2018 ◽  
Vol 32 (4) ◽  
pp. 264-269
Author(s):  
SUMIT KUMAR ◽  
S. K. BISWAS ◽  
H. G. PRAKESH ◽  
◽  
◽  
...  
Keyword(s):  
Disease Management ◽  
Late Blight ◽  
Integrated Disease Management ◽  
Management Approaches ◽  
Late Blight Of Potato

scholarly journals Late blight of potato and its management through the application of different fungicides and organic amendments: a review

2021 ◽  
Vol 4 (1) ◽  
pp. 301-320
Author(s):  
Injila Tiwari ◽  
Kabita Kumari Shah ◽  
Subina Tripathi ◽  
Bindu Modi ◽  
Sudeep Subedi ◽  
...  
Keyword(s):  
Disease Management ◽  
Late Blight ◽  
Organic Amendments ◽  
Preventive Measure ◽  
Life Cycles ◽  
Cultural Control ◽  
Crop Failure ◽  
Tropical Regions ◽  
Effective Interventions ◽  
Late Blight Of Potato

Late the blight  of  potato is  a  devastating  and  one of  the  economic diseases  of potato  and  other plants  belonging  to family Solanaceae. Late blight, caused by Phytophthora infestans, is one of the most threatening pathogenic diseases which not only results in direct crop losses but also cause farmers to embrace huge monetary expenses for disease control and preventive measure. It was first reported during the Irish Potato Famine, leading to massive starvation in Ireland and other parts of Europe during the middle of 19th century. Phytopthora harms the foliar portion in the field and also the tuber in the storage that can result in complete crop failure in potato. The pathogen has distinct survival mechanisms and two life cycles infection processes. The development of a sexual spore known as oospore includes two types of pairs, A1 and A2. The spores are introduced to good plants by wind and rain. Different methods for prevention of crops from late blight has been developed and used worldwide. An integrated disease management strategy includes successful control of this disease. Cultural control, chemical management, and advanced disease management are the most effective interventions. Integration of late blight control in tropical regions with abundant fungal inoculants in most months of the year was also seen as one of the best choices in disease management. This paper reviews the significance of late blight of potato and controlling strategies adopted for minimizing yield losses incurred by this disease by the application of synthetic fungicides and different organic amendments.

scholarly journals Integrated Disease Management of Tomato Late Blight

2014 ◽  
Vol 8 ◽  
pp. 67-76 ◽  
Author(s):  
Krishna K. Shrestha ◽  
Richard Ashley
Keyword(s):  
Disease Management ◽  
Late Blight ◽  
Disease Incidence ◽  
Trichoderma Viride ◽  
Integrated Disease Management ◽  
Artemisia Vulgaris ◽  
The Past ◽  
The World ◽  
Serious Disease ◽  
Over Time

Tomato late blight caused by Phytophthora infestans (Mont.) de Bary is a  serious disease of tomato and potato worldwide. The disease causes severe  crop losses in the tomato growing regions of the world. Most of the cultivars  grown in the world are reported to be susceptible to late blight. Systemic  fungicides have been used widely in the past, but the disease has developed  resistance over time. The present study was carried out to minimize  fungicide use through integrated pest management. The bio-pesticides  Azadirachta indica (Neem), Artemisia vulgaris (Mugwort) and Trichoderma  viride were tested along with the fungicides Krilaxyl (metalaxyl 8% and  mancozeb 64%) and Dithane M-45 (mancozeb 80%) in Nepal during 2000  and 2001. All three bio-pesticides were found more effective than the control  in reducing development of the disease and they increased yield over the  control by 17 to 41%. However, the fungicides, Krilaxyl and Dithane M-45  were observed even more effective. Two transplanting dates ie first and third  week of July were tested against late blight in rainy season during 2000and  2001 and observed its effect on yields. Lower disease incidence and better  yield were found in the second planting.  Nepal Agric. Res. J. Vol. 8, 2007, pp. 67-76DOI: http://dx.doi.org/10.3126/narj.v8i0.11583

scholarly journals Preemergence Infection of Potato Sprouts by Phytophthora infestans in the Highland Tropics of Ecuador

Plant Disease ◽  
2008 ◽  
Vol 92 (4) ◽  
pp. 569-574 ◽  
Author(s):  
Peter Kromann ◽  
Arturo Taipe ◽  
Jorge L. Andrade-Piedra ◽  
Lisa Munk ◽  
Gregory A. Forbes
Keyword(s):  
Disease Management ◽  
Late Blight ◽  
Phytophthora Infestans ◽  
Seed Potato ◽  
Soil Surface ◽  
Potato Tubers ◽  
Potato Plants ◽  
Management Approaches

Experiments were conducted to determine whether preemergence infection of potato sprouts by Phytophthora infestans occurs in the highland tropics of Ecuador. In three separate experiments in the field, P. infestans was identified on the preemerged sprouts of 49, 5, and 43% of tubers, respectively, which had been removed from soil prior to emergence. Tubers had been planted within 10 m of approximately 300-m2 plots with mature potato plants severely infected with late blight. Infection potential of potato sprouts also was evaluated in the greenhouse by applying 10-ml sporangial suspensions (50 and 250 sporangia/ml) daily for 10 days to the soil surface of pots planted with sprouted seed potato tubers. The daily inoculation rate of 50 sporangia/ml (15.9 × 103 sporangia/m2) resulted in sprout infection in 100% of inoculated pots and roughly corresponded to the sporangial deposition accumulated over 24 h in the field. Deposition had been measured at 1 m from a severely infected potato plot. Our study demonstrated the potential for preemergence infection of potato sprouts by P. infestans in the highlands of Ecuador, where year-round aerial inoculum is present. Preemergence infection is consistent with high levels of disease sometimes seen in recently emerged potato fields. These experiments indicate a need to reconsider disease management approaches.

Integrated Disease Management in Pigeon Pea

2020 ◽  
pp. 133-143
Author(s):  
Sanjeev Kumar ◽  
S. N. Singh ◽  
U. K. Khare ◽  
Usha Bhale ◽  
Jayant Bhatt ◽  
...  
Keyword(s):  
Disease Management ◽  
Pigeon Pea ◽  
Integrated Disease Management

scholarly journals Integrated Disease Management of Chickpea Fusarium Wilt

2020 ◽  
pp. 20-25
Author(s):  
Sanjeev Kumar ◽  
Sangita Sahni ◽  
Bishun Deo Prasad
Keyword(s):  
Disease Management ◽  
Fusarium Wilt ◽  
Chemical Control ◽  
Yield Loss ◽  
Residual Effect ◽  
Cost Effective ◽  
Wilt Disease ◽  
Integrated Disease Management ◽  
Soil Borne Pathogens ◽  
Chemical Pesticides

Chickpea (Cicer arietinum) is one of the world’s major legume crops and suffers substantial damage from wilt disease caused by Fusarium oxysporum f. sp. ciceri( Padwick) with yield loss over 60 per cent. It is an important soil borne plant pathogen and is difficult to manage by application of chemical pesticides. Moreover, the chemical control is costly and leads to residual effect. A plethora of reports indictes the efforts made to reduce environmental effects and rationalize the use of pesticides and manage the pathogen more effectively through Integration of Disease Management (IDM). Application of soil amendments and specific bio-control agents also incorporated in IDM which has potential to suppress soil-borne pathogens through manipulation of the physicochemical and microbiological environment. Therefore, IDM approach for controlling chickpea Fusarium wilt might be a cost effective and eco-friendly approach.

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