Phytophthora root rot of potato and its management in Kashmir Valley

Taskeen-un-Nisa , Abdul Hamid Wani , Shazia Parveen and Mohd Yaqub Bhat

Abstract
Potato is an important crop and is grown allover the world. It is a promising food to millions of people especially in developing countries after rice, wheat and corn. Potato tubers are attacked by fungal diseases such as dry rots mostly in storage and soft rots at every stage and cause substantial loss. The present study was therefore carried out to study the incidence of fungal rot of potato in storage. It was revealed from the study that potato tubers in storage are attacked by Phytophthora infestans (Mont.) de Bary causing phytophthora root rot. A study was also carried out for the management of fungal rot of potato with some systemic and non-systemic fungicides. Amongst all the fungicides used carbendazim proved highly effective in reducing the colony diameter and rot severity of Phytophthora infestans followed by hexaconozole, bitertanol, myclobutanil, mancozeb, captan and zineb respectively. Higher concentrations of the fungicide proved effective than lower concentrations.

Keywords
Control; Colony diameter; Fungicides; Lesion diameter; Phytophthora infestans; Rot severity; Storage.

DOI
10.21472/bjbs.040713

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References
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