EVALUATION OF CYTROL AND REVUS FUNGICIDES AGAINST LATE BLIGHT OF POTATO

Nadeem Shad, Irfan Liaquat, Iqra H. Khan, Nisar Hussain, Gulraze A. Liaqat, Arshad Javaid

Abstract


A field experiment was carried out in 2019 to assess the efficacy of two fungicides namely cytrol 75% WP (thiophanate methyl 35% + chlorothalonil 40%) and revus 240 SC (mandipropamid) to control late blight of potato caused by Phytophthora infestans, under field conditions. The experiment was carried out in a randomized complete block design. There were four treatments viz. control, cytrol @ 500 g acre-1, cytrol @ 600 g acre-1 and revus 240 mL acre-1. Data regarding disease incidence and disease control were recorded on 3rd, 5th and 7th days after spray. On day 7th, the highest disease incidence (74%) was recorded in control. All three fungicide treatments significantly reduced disease incidence. Cytrol @ 500 and 600 g acre-1 treatments reduced the disease incidence to 28% and 25%, showing 62% and 66% disease control potential, respectively. Likewise, application of revus 240 mL acre-1 reduced disease incidence to 28% exhibiting 62% disease control potential over control. This study concludes that cytrol @ 500 g acre-1 and revus 240 mL acre-1 can effectively control late blight of potato under field conditions.


Keywords


Cytrol, Disease management, Late blight of potato, Revus

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DOI: https://doi.org/10.33866/phytopathol.030.02.0598

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Pakistan Journal of Phytopathological
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