%0 Journal Article
%T Efficacy of Some Botanical Extracts on the Control of Late Blight Disease in Experimental Potato Field
%A Shafiqul Islam
%A Md. Abul Kalam Azad
%A Md. Rashidul Islam
%A Mst. Samia Sultana
%A Jesmin Ara Khatun
%A Md. Huzzatul Islam
%J Advances in Bioscience and Biotechnology
%P 426-435
%@ 2156-8502
%D 2021
%I Scientific Research Publishing
%R 10.4236/abb.2021.1212027
%X Late blight caused by <i>Phytophthora</i> <i>infestans</i> (Mont.) De Bary is
the most devastating disease of potato. This study was carried out to evaluate
the efficacy of ten botanical extracts against the late blight disease
incidence and severity in experimental potato field at University of Rajshahi,
Bangladesh during 2019-2020. Crude aqueous extract of leaves of <i>Syzygium</i> <i>cumini</i>, <i>Psidium</i> <i>guajava</i>, <i>Eucalyptus</i> <i>globusus</i>, <i>Carica</i> <i>papaya</i> and <i>Lawsonia</i> <i>inermis</i>; fruits of <i>Terminalia</i> <i>bellirica</i>, <i>T.</i> <i>chebula</i> and <i>Piper</i> <i>nigrum</i>; flower buds of <i>Syzygium</i> <i>aromaticum</i> and cloves of <i>Allium</i> <i>sativum</i> were used at 5% (w/v)
concentration for evaluation. Out of ten botanicals, <i>Syzygium</i> <i>cumini</i> leaves extract was
found most effective in controlling the late blight disease incidence and
severity up to 66 DAS (days after sowing) and increased the potato yield by
71.29% compare to untreated control. The efficacy of <i>Lawsonia</i> <i>inermis</i> extract against late
blight disease was found promising and increased the potato yield by 48.51%. Other
four botanical extracts (<i>Terminalia</i> <i>chebula</i>, <i>Piper</i> <i>nigrum</i>, <i>Syzygium</i> <i>aromaticum</i> and <i>Carica</i> <i>papaya</i>)
showed moderate efficacy <span>against the
incidence and severity of late blight disease, and increased 30% </span>more
potato yield compare to control. These results suggest that botanical extract
of <i>Syzygium</i> <i>cumini</i> ha<span style=\"font-family:;\" \"=\"\">s</span><span style=\"font-family:;\" \"=\"\"> a great potential as an alternative </span><span style=\"font-family:;\" \"=\"\">of</span><span style=\"font-family:;\" \"=\"\"> chemical
fungicides to control the late blight disease of potato in</span><span style=\"font-family:;\" \"=\"\"> </span><span style=\"font-family:;\" \"=\"\">eco-friendly
way.</span>
%K Botanical Extract
%K Late Blight Disease
%K Potato
%K &lt
%K i&gt
%K Phytophthora infestans&lt
%K /i&gt
%K Experimental Field
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=113791