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A Comparative Analysis of Microbe-Based Technologies Developed at ICAR-NBAIM Against Erysiphe necator Causing Powdery Mildew Disease in Grapes (Vitis vinifera L.)

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Title A Comparative Analysis of Microbe-Based Technologies Developed at ICAR-NBAIM Against Erysiphe necator Causing Powdery Mildew Disease in Grapes (Vitis vinifera L.)
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Creator Deepti Malviya1 , Ratna Thosar 2 , Namrata Kokare2 , Shital Pawar 2 , Udai B. Singh1 *, Sujoy Saha2 *, Jai P. Rai 3 , Harsh V. Singh1 , R. G. Somkuwar 2 and Anil K. Saxena1
 
Subject microbe-based technology, Eco-Pesticide, Bio-Pulse, Bio-Care, Erysiphe necator, Vitis vinifera, powdery mildew of grapes
 
Description Not Available
Globally, Erysiphe necator causing powdery mildew disease in grapevines (Vitis vinifera
L.) is the second most important endemic disease, causing huge economic losses every
year. At present, the management of powdery mildew in grapes is largely dependent
upon the use of chemical fungicides. Grapes are being considered as one of the high
pesticide-demanding crops. Looking at the residual impact of toxic chemical pesticides
on the environment, animal, and human health, microbe-based strategies for control of
powdery mildew is an emerging technique. It offers an environment-friendly, residue-free,
and effective yet safer approach to control powdery mildew disease in grapes. The mode
of action is relatively diverse as well as specific to different pathosystems. Hence, the
aim of this study was to evaluate the microbe-based technologies, i.e., Eco-pesticide®,
Bio-Pulse®, and Bio-Care 24® developed at the Plant-Microbe Interaction and
Rhizosphere Biology Lab, ICAR-NBAIM, Kushmaur, against grape powdery mildew and
to integrate these technologies with a safer fungicide (sulfur) to achieve better disease
control under organic systems of viticulture. The experiments were conducted at four
different locations, namely, the vineyards of ICAR-NRCG, Rajya Draksha Bagayatdar
Sangh (MRDBS), and two farmers’ fields at Narayangaon and Junnar in the Pune
district of Maharashtra. A significantly lower percent disease index (PDI) was recorded
on the leaves of grape plants treated with Eco-Pesticide®/sulfur (22.37) followed by
Bio-Pulse®/sulfur (22.62) and Bio-Care 24®/sulfur (24.62) at NRCG. A similar trend was
observed with the lowest PDI on bunches of Eco-pesticide®/sulfur-treated plants (24.71)
followed by Bio-Pulse®/sulfur (24.94) and Bio-Care®/sulfur (26.77). The application of
microbial inoculants singly or in combination with sulfur has a significant positive impact
on the qualitative parameters such as pH, total soluble solids (TSS), acidity, berry
diameter, and berry length of the grapes at different locations. Among all the treatments,
the Bio-Pulse®/sulfur treatment showed the highest yield per vine (15.02 kg), which was
on par with the treatment Eco-Pesticide®/sulfur (14.94). When compared with the yield obtained from the untreated control, 2.5 to 3 times more yield was recorded in the plants
treated with either of the biopesticides used in combination with sulfur. Even in the case
of individual inoculation, the yield per vine was approximately two times higher than the
untreated control and water-treated plants across the test locations. Results suggested
that microbial technologies not only protect grapevines from powdery mildew but also
enhance the quality parameters with increased yield across the test locations.
Not Available
 
Date 2024-06-24T16:18:04Z
2024-06-24T16:18:04Z
2022-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/83744
 
Language English
 
Relation Not Available;
 
Publisher Not Available