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Spraying neem oil on standing crops to be effective in eliminating locust attack

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Aurangabad, May 29: As parts of Maharashtra and other states face attacks from locusts, which destroy crops and vegetation, an agriculture university has suggested a slew of measures like destroying their eggs and spraying neem oil on crops to tackle threat from the migratory pests.

locusts

Swarms of crop-eating locusts have spread across Madhya Pradesh, Rajasthan, Uttar Pradesh and Maharashtra. The fast-moving insects entered parts of Vidarbha in eastern Maharashtra earlier this week.

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    Locusts crossed into Balaghat district of Madhya Pradesh from eastern Maharashtra on Thursday afternoon, a senior agriculture department official had said.

    Earlier on Thursday, officials had said the swarms were moving eastwards, towards Gondia district of Maharashtra after entering Bhandara from Nagpur district on Wednesday. The Vasantrao Naik Agriculture University at Parbhani in Marathwada said threat from swarms of locusts destroying crops and travelling long distances in search of food can be tackled by undertaking certain measures.

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    "Destroying their eggs, digging trenches of a specific size and spraying neem oil on standing crops are some of the effective methods to tackle the menace caused by locusts," it said in a statement.

    "Female locusts lay 50 to 100 eggs in moist sandy land. The hatching period of these eggs depends on environment and may stretch from two to four weeks. Larvae cannot fly immediately when they come out," the varsity said.

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    According to university experts, larvae when they grow and start flying in groups, can destroy leaves, branches, flowers and seeds. Adult locusts can eat food equivalent to their weight and can fly with a speed ranging from 12 to 16 km per hour.

    "If a swarm of locusts is in one square km area, their weight can be up to 3,000 quintals. Their flocks can be neutralised during night time (which is their resting time) with the help of smoke." the university said.

    Spraying 2.5 litres of neem oil per hectare has also proved effective in controlling swarms of locusts, it said.

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