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Plant Diseases

  • Local apples fight scab better

    Local apples fight scab better

    most varieties of apples grown in India are susceptible to apple scab, a fungal disease. The disease is controlled using fungicides but horticulturists are trying to reduce their use and develop

  • Editorial: Time for a new agricultural revolution

    Growing food has always been a struggle, and it is only thanks to modern agricultural research that most people now have enough to eat. Today we need that research more than ever.

  • Killer wheat fungus threatens starvation for millions

    A wheat disease that could destroy most of the world's main wheat crops could strike south Asia's vast wheat fields two years earlier than research had suggested, leaving millions to starve.

  • South Asia

    Yellowing disease strikes Sri Lanka's coconuts: Coconut trees in Sri Lanka's Southern province have been affected by a yellowing disease, said plantation industries minister D M Jayaratne in

  • Management of powdery mildew disease in grape

    Grape vine are often prone to fungal infestations often and among them powdery mildew is an economically important one.

  • New wheat fungus threatens crop

    A deadly new and virulent fungus capable of affecting wheat crop has been detected in Iran, a major cereal growing area in West Asia. The fungus was previously found in East Africa and Yemen and has now moved to Iran, according to Food and Agriculture Organisation (FAO). The fungus is capable of destroying entire fields of wheat crop. The report could further push up global wheat prices by at least 10-15 per cent. In the spot retail market, wheat prices have surged by 40 per cent in last one year on global shortage. Countries such as Afghanistan, India, Pakistan, Turkmenistan, Uzbekistan and Kazakhstan, all major wheat producers, are most threatened by the fungus and should be on high alert as the fungus can travel to these areas thus affecting the entire output, FAO said. It is estimated that as much as 80 per cent of all wheat varieties planted in Asia and Africa are susceptible to the wheat stem rust (Puccinia graminis). The spores of wheat rust are mostly carried by wind over long distances and across continents. "The detection of the fungus in Iran is very worrisome,' said Shivaji Pandey, director of FAO's plant production and protection division. According to the Iran government, the fungus has been detected in some localities in Broujerd and Hamedan in western Iran. Laboratory tests have confirmed the presence of the fungus. The fungus first emerged in Uganda in 1999 and is therefore called Ug99. The wind-borne transboundary pest subsequently spread to Kenya and Ethiopia. In 2007, an FAO mission confirmed for the first time that Ug99 has affected wheat fields in Yemen. The Ug99 strain found in Yemen was more virulent than the one found in East Africa. Ethiopia and Kenya had serious wheat rust epidemics in 2007 with considerable yield losses. Global wheat production is estimated at 603 million tonnes in 2007, up 1.2 per cent from 2006. In Asia, the output is estimated to rise by 1.7 per cent to 928 million tonnes in 2007 compared with 912.6 million tonnes last year. Global wheat prices have strengthened since December. Tight export supplies amid strong demand continued to provide support to cereal markets. International grain prices benefited from the weak US dollar, which increases the demand for the US wheat, and a sharp decline in freight rates, which helped accelerating purchasing activities by several countries in recent weeks. Export restrictions by China and the Russian Federation coupled with the closure of the export registry in Argentina also provided support.

  • Crop loss at Rs 1.5 lakh cr each yr

    Pests, weeds, diseases take a toll on produce, says agriculture minister. The country is losing agricultural production worth Rs 1.48 lakh crore annually due to damage from pests, weeds and plant diseases, according to the Crop Care Foundation of India (CCFI). This reckoning is based on Agriculture Minister Sharad Pawar's statement in the Rajya Shabha indicating that around 10-30 per cent of the farm produce was lost every year due to pests, weeds and diseases.

  • New pepper hybrid developed

    In a major breakthrough, scientists of the Pepper Research Station, Panniyur, have developed a new hybrid pepper variety that can resist the infamous foot-rot disease. Into the fourth year of its trial, the variety has also shown resistance to drought and erratic climate, KP Mammooty, head, Pepper Research Station said. Foot-rot disease is estimated to eat into 20-25% of the annual pepper production of the country and in some cases, farmers have stopped cultivating pepper after suffering economically from it, he said. The disease spreads rapidly and the damage is extensive. At present, no remedy exists for foot-rot disease in pepper, other than cutting and removing affected plants completely, he added. The new hybrid is developed by crossing the indigenous

  • Forest produce in Western Ghats suffer mystery infection

    Forest produce in Western Ghats suffer mystery infection

    rampatre, a non-timber forest produce and an important livelihood source for communities in the Western Ghats, is afflicted with a mystery infection. Scientists are yet to find the nature of the

  • Punjab takes precautions for mealy bug attack

    Punjab takes precautions for mealy bug attack

    the Punjab government has stepped up measures to avert the occurrence of a mealy bug attack, which claimed 5-7 per cent cotton crops in 2007. The state government is worried because field

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