تلخیص
Citrus canker is a highly destructive malady in Kinnow mandarin worldwide. This study was conducted to determine the efficacy of both chemicals and plant-based extracts to find suitable chemicals against the canker in Kinnow. The study was carried out at the citrus farm of the Citrus Research Institute, Sargodha, Punjab-Pakistan during 2011-13 on ten-year-old bearing trees of Kinnow plants. There were nine treatments, control (no chemical was applied), Neemsol @ 5 ml, copper oxychloride @ 3 g, streptomycin sulphate @ 1 g, potassium acetyl benzoic acid @ 10 ml, difenoconazole @ 0.5 ml, extracts of Acacia nilotica @ 10 ml, Datura alba @ 10 ml, and Allium cepa @ 10 ml. These treatments were used by mixing in 10-liter water. The foliar spray was applied four times a year, i.e. March-April and August-September. The results showed that copper oxychloride controlled the disease up to 74%, difenconazole up to 56%, whereas, among botanicals, the disease control was 74%, 64%, 59%, and 52% due to application of extract solutions of A. cepa, D. alba, Neem Oil, and A. nilotica, respectively. The application of different chemicals also significantly influenced the fruit quality regarding fruit weight, fruit size, peel thickness, and juice weight. Copper oxychloride and A. cepa extract-treated plant revealed better results. The use of copper oxychloride, difenconazole, and extracts of A. cepa and D. alba are recommended to citrus growers to control canker in Kinnow plantations during the critical period.
Malik Abdul Rehman, Shafqat Ali, Muhammad Babar Shahzad Afzal, Muhammad Nawaz Khan, Mujahid Ali. (2020) Efficacy of Chemicals and Botanical Extracts to Control Citrus Canker on Kinnow in Sargodha Region, Journal of Innovative Sciences, Volume 6, Issue-2.
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