{"id":82083,"date":"2026-01-12T11:12:20","date_gmt":"2026-01-12T05:42:20","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=82083"},"modified":"2026-01-12T11:12:20","modified_gmt":"2026-01-12T05:42:20","slug":"orobanche-threat-to-mustard-how-a-parasitic-weed-is-undermining-indias-edible-oil-crop","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/orobanche-threat-to-mustard-how-a-parasitic-weed-is-undermining-indias-edible-oil-crop\/","title":{"rendered":"Orobanche Threat to Mustard: How a Parasitic Weed Is Undermining India\u2019s Edible Oil Crop"},"content":{"rendered":"<h2><b>Orobanche Threat to Mustard Latest News<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mustard is India\u2019s <\/span><b>largest indigenous<\/b><span style=\"font-weight: 400;\"> source of edible oil, cultivated across nearly nine million hectares, mainly in Rajasthan, Uttar Pradesh, Madhya Pradesh, Haryana and West Bengal.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">However, the crop is increasingly threatened by <\/span><b><i>Orobanche aegyptiaca<\/i><\/b><span style=\"font-weight: 400;\">, a parasitic weed that attaches to mustard roots and siphons off water and nutrients, leading to poor plant growth and reduced seed yields.<\/span><\/li>\n<\/ul>\n<h2><b>How Orobanche Damages the Crop<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Orobanche attaches itself to mustard roots underground and siphons off water, nutrients and carbon.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This leads to wilting, yellowing, stunted plant growth and ultimately sharp declines in seed yields.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Because the parasite remains <\/span><b>hidden below the soil<\/b><span style=\"font-weight: 400;\"> initially, damage is already extensive by the time it becomes visible.<\/span><\/li>\n<\/ul>\n<h3><b>Farmers See Sharp Yield Losses<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Farmers report steep yield declines despite following recommended control measures.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">In Haryana\u2019s Sirsa district, yields have fallen from 9\u201312 quintals per acre earlier to nearly 6 quintals per acre in recent seasons.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Even herbicide sprays have shown little effect, pushing farmers to reduce mustard acreage in favour of wheat, chickpea and barley.<\/span><\/li>\n<\/ul>\n<h3><b>Why Infestation Is Spreading Fast<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Each Orobanche plant <\/span><span style=\"font-weight: 400;\">produces thousands of tiny seeds that can remain viable in soil for up to 20 years<\/span><span style=\"font-weight: 400;\"> and spread through wind and water.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fields repeatedly planted with mustard are especially vulnerable, as irrigation creates ideal conditions for seed germination and rapid underground attachment to crop roots.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The rising infestation has shaken farmer confidence in mustard, traditionally valued for its low irrigation needs.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">As Orobanche spreads, many farmers are cutting back on mustard cultivation, raising concerns over future domestic edible oil production.<\/span><\/li>\n<\/ul>\n<h2><b>Why Mustard Matters for India<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mustard is India\u2019s most important edible oilseed crop, contributing over <\/span><b>4 million tonnes<\/b><span style=\"font-weight: 400;\"> out of the country\u2019s <\/span><b>10.5\u201310.6 million tonnes<\/b><span style=\"font-weight: 400;\"> of annual indigenous edible oil production.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is central to efforts to cut India\u2019s heavy dependence on edible oil imports.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Reducing Import Dependence<\/b><span style=\"font-weight: 400;\"> &#8211; India imports nearly 16 million tonnes of edible oils every year \u2014 mainly palm, soybean and sunflower oil \u2014 costing $15.9 billion in 2023\u201324 and $18.3 billion in 2024\u201325.\u00a0<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Improving mustard yields is therefore a key national priority to reduce this import bill.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Rising Disease and Pest Pressure<\/b><span style=\"font-weight: 400;\"> &#8211; Mustard\u2019s increasing vulnerability to <\/span><b>Orobanche (margoja)<\/b><span style=\"font-weight: 400;\">, along with pests like <\/span><b><i>aphids<\/i><\/b><span style=\"font-weight: 400;\"> and fungal diseases such as white rust, leaf blight, stem rot and powdery mildew, has emerged as a serious concern for productivity and farmer confidence.<\/span><\/li>\n<\/ul>\n<h3><b>Farmers Flag Changing Threat Patterns<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Farmers report that Orobanche infestation is now appearing earlier in the crop cycle and in fertile soils, unlike earlier when it emerged later and mostly in sandy fields.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This shift signals a growing and more aggressive threat.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The buildup of long-lasting Orobanche seed banks in soil has increased the weed\u2019s damage potential, enabling early emergence and greater yield losses.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This has left farmers increasingly uncertain, sowing mustard largely on hope rather than confidence.<\/span><\/li>\n<\/ul>\n<h2><b>Herbicides as a Possible Control Tool<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Chemical control using herbicides such as <\/span><b><i>glyphosate<\/i><\/b><span style=\"font-weight: 400;\"> is one possible way to tackle Orobanche.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">However, this approach has major limitations with conventional mustard varieties.<\/span><\/li>\n<\/ul>\n<h3><b>Why Conventional Herbicides Don\u2019t Work<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Glyphosate and similar broad-spectrum, non-selective herbicides kill all plants by blocking the EPSPS (5-enolpyruvylshikimate-3-phosphate synthase) enzyme essential for protein formation.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Applied to normal mustard, they destroy the crop along with the weed.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">At currently recommended low doses, they are also ineffective against Orobanche.<\/span><\/li>\n<\/ul>\n<h3><b>Role of Herbicide-Resistant Mustard<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A new approach lies in <\/span><b>breeding<\/b><span style=\"font-weight: 400;\"> mustard varieties that can tolerate specific herbicides.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Farmers are testing a hybrid mustard that is resistant to <\/span><b>imidazolinone herbicides<\/b><span style=\"font-weight: 400;\">, allowing selective control of Orobanche without harming the crop.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The hybrid \u2018<\/span><b><i>Pioneer-45S42CL\u2019<\/i><\/b><span style=\"font-weight: 400;\"> can tolerate imazapyr and imazapic herbicides.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sold with a compatible herbicide formulation, it requires a single spray after 25 days of sowing and has shown encouraging early results in farmers\u2019 fields.<\/span><\/li>\n<\/ul>\n<h3><b>GM Mustard as a Future Option<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Researchers have also developed <\/span><a href=\"https:\/\/vajiramandravi.com\/upsc-exam\/gm-mustard\/\" target=\"_blank\"><b>GM mustard<\/b><\/a><span style=\"font-weight: 400;\"> lines resistant to glyphosate and other herbicides, offering multiple chemical options and reducing the risk of resistance buildup.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Given mustard\u2019s strategic importance and the rising weed threat, policymakers face a critical decision on permitting GM crops.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Any decision, experts argue, should be guided by science and farm economics rather than ideology.<\/span><\/li>\n<\/ul>\n<p><b>Source:<\/b> <strong><a href=\"https:\/\/indianexpress.com\/article\/explained\/the-weed-threat-to-mustard-10468243\/\" target=\"_blank\" rel=\"nofollow noopener\">IE<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Orobanche threat to mustard is cutting yields across India. Here\u2019s how this parasitic weed spreads, why mustard matters, and what solutions farmers are testing.<\/p>\n","protected":false},"author":18,"featured_media":82115,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[18],"tags":[60,4685,22,59],"class_list":{"0":"post-82083","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-mains-current-affairs","8":"tag-mains-articles","9":"tag-orobanche-threat-to-mustard","10":"tag-upsc-current-affairs","11":"tag-upsc-mains-current-affairs","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/82083","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=82083"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/82083\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/82115"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=82083"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=82083"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=82083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}