The desert locust, Schistocerca gregaria, is a major migratory pest that causes substantial agricultural damage. Scientists lead the fightback. Nairobi (CNN)The Horn of Africa has been hit by the worst invasion of desert locusts in 25 years, the UN's Food and Agriculture Organization (FAO) said Friday. 2 lakh in 1978 and Rs. REUTERS/Baz Ratner Swarms of crop-destroying desert locusts have reached the outskirts of Delhi after entering Gurugram this morning. Irregular weather and climate conditions in 2019, including heavy rains between October and December, are suspected to have contributed to the spread of locusts in the region. Most agropastoral areas in reproductive stages of crop development have had crops destroyed which will affect crop yield and pasture availability. Aerial spraying is considered the only effective control. Swarms of millions of locusts strike East Africa, Armyworm invasion destroys crops in southern Africa. Invasions of desert locusts are irregular in the region, the last instance occurred in 2007 at a much smaller scale. As large swarms continue to move into Kenya and multiply, "you have a recipe for the situation to deteriorate further," said Cressman. Abstract: The desert locust, Schistocerca gregaria, is a major migratory pest that causes substantial agricultural damage. "Swarms migrate with the wind and can cover 100 to 150 kilometres in a day. In Pictures: Desert locusts swarm parts of East Africa Locusts have invaded parts of eastern Africa, ravaging crops, decimating pasture and deepening a hunger crisis. The swarms of billions of locusts have been destroying crops in Kenya, which hasn’t seen such an outbreak in 70 years, as well as Somalia and Ethiopia, which haven’t seen this in a quarter-century. Desert Locust situation update - 10 December 2020 Format News and Press Release Source. A locust swarm can contain as many as 80 million adults. For laying eggs, they require bare ground, which is rarely found in areas with dense vegetation. It’s been estimated that swarms of migratory locusts can cover some 20% of Earth’s land surface and affect the livelihood of 1 in 10 people on the planet. The insects have exploited favourable wet conditions after unusually heavy rains and experts say climate change is expected to bring more of the same. The locusts have already devastated large swaths of food and pasture in the region, but the extent of the damage cannot yet be determined since new swarms are spreading across borders everyday, said Njoka. Desert locusts are regarded as the world’s most destructive migratory pest, with a single swarm of up to 80 million capable of covering just one square kilometer. "Unlike other pests, which are localized, desert locusts can swarm … During the last 10 days, there has been a host of analytical articles in the press about the latest locust swarming from the Rajasthan/Gujarat desert region, all … It develops from an egg into a young locust - known as a hopper - and then into a flying adult. "A typical desert locust swarm can contain up to 150 million locusts per square kilometre," they explained. The Desert Locust (Schistocerca gregaria) is the most destructive migratory pest in the world.In response to environmental stimuli, dense and highly mobile Desert Locust swarms can form. We speak to the people on the front line of the battle to stop the swarms with the help of high-tech solutions. They are ravenous eaters who consume their own weight per day, targeting food crops and forage. 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Massive swarms of desert locusts are invading east Africa, ravaging crops, decimating pasture and deepening a food crisis in a region where more than 25 million people are already hungry. "Under a worst-case scenario," the invasion could become a plague if it is not contained quickly, the FAO said in a statement. The desert locust (Schistocerca gregaria) is a species of locust, a periodically swarming, short-horned grasshopper in the family Acrididae.They are found mainly in Africa, through Arabia and West Asia, and extending into parts of South Asia. The outbreak is so severe it might even disrupt the planting of crops in the coming weeks, he said, adding that the locusts “do wanton damage”. In Kenya, it is the worst invasion in 70 years, and the government is spending $5 million to manage the swarms of locust and prevent spreading. Desert Locust situation update 30 December 2020 First wave of swarms invades Kenya On 21 December, immature swarms from the north first arrived in northeast Kenya where they were seen southwest of Mandera. Swarm control operations are generally conducted during the daytime, but night-time control is a significant potential alternative. Unexpected and unpredictable rainfall in northern Kenya that carried into January also continues to enable favorable breeding ground. Flying adult swarms disperse widely during the daytime, but they densely roost on plants at night. The Horn of Africa has been hit by the worst invasion of desert locusts in 25 years -- and in Kenya, it's the worst in 70 years, the UN's Food and Agriculture Organization said Friday. A desert locust swarm can be 460 square miles in size and pack between 40 and 80 million locusts into less than half a square mile. UN officials warn that immediate action is needed before more rainfall in the weeks ahead brings fresh vegetation to feed new generations of locusts. "사막 메뚜기 떼, 여름까지 이어지면 중국도 피해 가능성" A staggering number of locusts are causing chaos in East Africa. "A typical desert locust swarm can contain up to 150 million locusts per square kilometre," they explained. A cyclone that swept through northeastern Somalia and eastern Ethiopia in December, bringing heavy rains to the area, created ideal conditions for the insects to breed for the next six months, said Keith Cressman, FAO's senior locust forecasting officer. First wave of swarms invades Kenya. Abstract: The desert locust, Schistocerca gregaria, is a major migratory pest that causes substantial agricultural damage. 7.18 lakh in 1993. If locusts are left untreated by control measures, swarms can potentially grow 400 times larger by June, Cressman said. The desert locust, Schistocerca gregaria, is a major migratory pest that causes substantial agricultural damage. Show more. The locust swarm also has economic and social impacts. "This current invasion of desert locust is significantly larger in magnitude and scale than previously experienced in Kenya and across East Africa," said Dr. Stephen Njoka, the Director General of Desert Locust Control Organization. Projected impact on food and fodder Very high risk of significant impact to both crops and rangelands due to the high rainfall received in the northern parts of the region which has enabled the swarms to migrate. Billions of desert locusts are swarming across East Africa, multiplying in numbers over several months of favorable rain and breeding conditions, creating what the UN Food and Agriculture Organization (FAO) called an “unprecedented threat to food security,” and the worst locust upsurge in East Africa in seventy years. One stumbling block, however, is the availability of weather radar in those regions worst affected by desert locusts, Cressman notes. If left unchecked, their numbers could grow up to 500 times before drier weather arrives, they say. The infestation is the worst U.N. officials say they have seen in 25 years, despite chemical spraying to combat the insects Overson said there is a fungal pathogen already that only attacks grasshoppers and crickets, but it is hard to use on the scale of the current desert locust swarms … “Also over the weekend, they moved into northeastern Uganda,” he told a news conference at UN headquarters in New York. In December, a locust swarm forced a passenger plane off course in Ethiopia. An emergency government meeting, held hours after the locusts were spotted in Uganda, decided to deploy the military to help with ground-based pesticide spraying, while two planes for aerial spraying will arrive as soon as possible, a statement said. FAO; Posted ... An immature swarm appeared in northern Afar coming from adjacent areas in … Although no locust plague cycles have been observed after 1962, large scale upsurges were reported during 1978 and 1993 in India. The FAO reports the decadal economic impacts of locust plagues since the 1920s. On 21 December, immature swarms from the north first arrived in northeast Kenya where they were seen southwest of Mandera. A man walks through a locust swarm in Kenya on 22 January 2020, Samburu County, Ololokwe, Kenya. Uganda has scrambled to respond to the arrival of the biggest locust outbreak that parts of East Africa have seen in decades, while the United Nations warned that the already vulnerable region “simply cannot afford another major shock”. Keith Cressman, the UN Food and Agriculture Organization’s (FAO) senior locust forecasting officer, said Kenya has received “waves and waves of swarms” since the beginning of the year from the Horn of Africa, and “over the weekend they moved on the side of Mount Kilimanjaro across the border into Tanzania”. Depending on the winds, which largely determine locust flight patterns, a swarm might travel 80 miles in a day. “We’re expecting any day they will move across the border into the southeast corner of South Sudan,” where another several million people face hunger as the country struggles to emerge from civil war. A desert locust like this - a type of grasshopper - usually likes to live a shy, solitary life. Each square kilometre of a swarm can have from 40 million-80 million locusts. Desert Locust situation update 30 December 2020. Estimated damage was Rs. Updated 1524 GMT (2324 HKT) January 25, 2020. Swarm control operations are generally conducted during the daytime, but night-time control is a significant potential alternative. The desert locust is the most destructive of all food-eating locust species because of its speed and ability to multiply rapidly. Swarm of locusts in a field in Damoh, Madhya Pradesh, on May 27. Desert Locust Swarms Continue to Spread in Africa, Middle East. The FAO has escalated the situation to the highest disaster level, leading the agency to put in place a six month emergency action plan and suggest it will take USD $70m to contain the swarms across the region. Swarms of desert locusts have destroyed swathes of crops in Kenya and other east African countries this year. Flying adult swarms disperse widely during the daytime, but they densely roost on plants at night. “We do have a chance to nip […] While Njoka remains positive the pesticides are working, the rapid and constant movement of the locusts makes it difficult to assess just how effective it has been. A swarm can vary from one square kilometer to several hundred square kilometers with up to 80 million adult locusts in each square kilometer of a swarm. An adult desert locust consumes food equaling roughly to its weight -- about two grams every day, which means that even a small swarm of insects … Flying adult swarms disperse widely during the daytime, but they densely roost on plants at night. “New locust swarms are already forming and threatening to re-invade northern Kenya and breeding is also underway on both sides of the Red Sea, posing a new threat to Eritrea, Saudi Arabia, the Sudan, and Yemen,” FAO said in a news release. “Once our scouts locate a swarm… Large swarm areas of northeastern Somalia and eastern Ethiopia are not being detected or treated, leaving the area vulnerable to new generations of locusts. Flying adult swarms disperse widely during the daytime, but they densely roost on plants at night. The invasion poses an unprecedented threat to food security in the entire sub region, where more than 19 million people in East Africa are already experiencing a high degree of food insecurity, the agency said. Desert locust situation threat Image: FAO One small mature swarm of desert locusts has arrived near Mandera county in the northeast from Somalia, the … Since the last major locust outbreak in Africa, in 2003–05, researchers have been able to make the biopesticide cheaper, more effective, longer lasting in the desert, and easier to store. Desert locust swarms. ... From January to August, massive desert locust swarms swept across Somalia, Ethiopia and Kenya, ravaging crops and decimating pasture in the worst outbreak in decades. "Swarms migrate with the wind and can cover 100 to 150 kilometres in a day. Locust swarm surveillance, 24/7, could be a boon to countries seeking to better target their pesticide response, since most locust surveillance still relies on data collected by hand. According to the FAO, the insects do not attack people or animals and there is no evidence they carry diseases that can harm humans. An adult desert locust is one of the most destructive migratory pests in the world: It can eat its own bodyweight, or about 0.07 ounces, in vegetation every day. An adult desert locust consumes food equaling roughly to its weight -- about two grams every day, which means that even a small swarm of insects will eat food consumed by six elephants, 20 camels, or 35,000 people every day, the FAO said. A second wave of locusts threatens crops in East Africa. The Horn of Africa has been hit by the worst invasion of desert locusts in 25 years -- and in Kenya, it's the worst in 70 years, the UN's Food and Agriculture Organization said Friday. A desert locust swarm is seen on the ground at the village of Lorengippi near the town of Lodwar, Turkana county, Kenya, July 2, 2020. CNN's David McKenzie contributed reporting. Discovery. These desert bugs feast on crops in the area and are leaving a trail of destruction and destroying food supplies. During population surge years, they … (Photo: PTI) As their name suggests, desert locusts normally live and breed in semi-arid/desert regions. Screenshot of desert locust explorer in Locust Hub showing high concentrations of locusts along India-Pakistan border, taken May 29, 2020 With current winds directed North East towards New Delhi, and high numbers of locusts along the Pakistani-India border, there is a major concern of swarms entering the Indian capital. The locusts are eating the vegetation that supports vibrant herder communities in the region, and Kenya’s Ambassador to the UN Lazarus Amayo warned of the “inherent risk of communal conflict over pastures.”. A locust outbreak, Cressman says, is a lot like a wildfire: Put it out early, and you're good. A medium-size swarm of locusts can eat the same amount of food as the entire population of Kenya, Cressman said, and “that swarm in one day can eat the same amount of food as everybody here in the tri-state area, New Jersey, Pennsylvania and New York. So not taking action in time – you can see the consequences.”. image caption A man runs through a desert locust swarm in the bush near Enziu, Kitui county, about 200km (124 miles) east of the capital, Nairobi. The greater Horn of Africa region witnessed one of its worst ever Desert Locust infestations, earlier this year. Desert locusts can have about 40 million to 80 million locust adults in each square kilometer of a swarm and travel up to 150 kilometers a day, according to the FAO. Desert Locust Projection October 2020. A swarm can consume the same amount of food in one day as 35,000 people. Desert locusts swarms can stay in the air for very long periods of time, traveling up 130 kilometers (80 miles) or more a day, the FAO said. 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