• Team MMB

Majuli's cooking up something, and it smells good and delicious!

The world’s largest river island of Majuli in Assam, where the predominantly tribal populace and agriculture scientists are cooking up a unique system of stopping pests from destroying crops—by eating them!

Among the most devastating of these pests is the white grub beetle (Lepidiota mansueta, locally known as ‘hati-puk’), which attacks nearly 40 per cent of the 300 square kilometre of crop area where potato, sugarcane, colocasia and green gram grows.

Scientists with the All India Network Project on Soil Arthropods Pests (AINPSAP) funded by the Indian Council of Agricultural Research, have since 2010, conducted extensive research on this insect in Majuli.

“Farmers, particularly from the local Mising tribal community, did consume the adult beetles. However, at the time, we didn’t know whether the beetle had toxic glands or what sort of proteins it contains, among other measurables. From 2015, we conducted amino acid and fatty acid analysis and studied how much protein or carbohydrate it contains,” says Dr Sudhansu Bhagawati, an entomologist with the AINPSAP.

From 2015 onward, researchers have travelled to different villages across Majuli to demonstrate how to cook and eat the beetles. This month, they are planning to open two or three small outlets to attract tourists in the endemic pockets of Majuli to offer the beetles to the palates of the many foreigners who visit the area during these months. It also creates awareness among other people about these insects.

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In fact, according Dr Bhagawati, locals knew of their presence for a long time, but really didn’t take note of it until 2005, when the effects of climate change began to really take shape in Majuli. Erratic rainfall and early onset of summer, he argues, resulted in a sharp decline in the arrival of Sarus crane, a seasonal predator. As a consequence, the number of these beetles just went through the roof, resulting in crop devastation.

Their solution was to catch these adult beetles that emerge from the ground in the month of April during the evening from 6-8 pm before they begin mating.

“We told local villagers that they must catch these beetles from 6-8 in the evening. Once we catch either male or female adult, they won’t be able to mate with each other and thus can’t lay their eggs. More interestingly, on one occasion we allowed a female beetle to lay her eggs. We found that at one time she laid 30-35 of them. In other words, if we catch one beetle, that means we are reducing 35 potential grubs. We visited these farmers, trained them to spot, catch, kill and cook them,” informs Dr Bhagawati, while describing the process.

Thanks to their efforts, 400 farmers from 40 different villages are today completely free from the white grub beetle. These farmers can once again grow crops like sugarcane, green gram and chickpeas, among other crops, and earn good money.

Fried with chickpea, alongside different garnishes and some local sauces, the white grub beetle today is a real delicacy.


During the months of March and April, the AINPSAP team conducts massive mass campaigning programmes against this pest. In fact, on April 9, 2018, a 10-member research team and 100 farmers set the national record of ‘Most Beetles collected in 3 hours’ by gathering 73,700 specimens of white grub beetle, well above and beyond the initial target set of 4,000. Their record has found an entry into the Indian Book of Records.


In many areas on the island, the pest is still present, but does not pose the sort of threat it once did. Nonetheless, the AINPSAP team is yet to visit a few villages and convince them of their technique to address the pest problem. However, what they have done in these years is help locals realise that the solution to the pest problem literally lays within them.

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