As soon as the name of Helambu was taken, it was understood as a place where apples can be found until the 40s. Helambu was known throughout the country for its trekking routes near Sayau and Kathmandu. Elderly people still remember that until 2040/42, they carried Helambu apples on their heads and sold them in the square of Bhrikutimandap in Kathmandu.

Even though there is transportation in the village of Helambu now, at that time the issue of building a road was just a fantasy. Therefore, it was customary to carry apples on their heads to Kathmandu to sell them. The girl was teased for having cheeks like Helambu's apples . 

The hospitality offered to the residents of Helambu, home to the Sherpa community, was also appreciated . Helambuwasi said that it would be very beneficial if he could take the apples grown in his garden to Kathmandu by car. 

By the time the 50s reached, the apple trees in Helambu had dried up and turned into a tree. Some of them had already used apple trees as firewood. When the apple trees died in the 1940s and 1950s, the identity of Helambu as an apple production center was lost. 

Most of the farmers in Melamchighyang, Tarkeghyang and Shermathang used to grow apples in their fields. At that time, the government also opened a horticulture office in local Shermathang to support apple production in Helambu. There was horticulture operation on about 30 hectares of land . Apples were harvested and given to the farmers. But when the apple trees started dying due to disease, even the horticultural technicians could not stop it. 

The horticulture staff rarely stayed in Helambu . Medicinal dust was sprinkled to control the disease . Employees stopped coming without being diagnosed. 

vs. Horticulture was handed over to Langtang National Park in June 2049. Bhairavaraj Regmi, the then executive head of Fruit Development Division, said that Helambu is not a suitable place for apples.

Although apple production has been good for 15 consecutive years since the 1930s, the people of Helambu have not yet found the answer to why it suddenly happened. Another reason for the decline in apple production in Helambu is the lack of manpower, the locals said. 

There is no manpower to plant and care for new apple trees . In the 50s, there were about 180 houses in Tarkeghang. 90 of them were locked on the door. 

It is said that a lama who came from Kerung in Tibet built a monastery in Tarkeghang. The monastery is still there. People were gradually moving to Kashmir, Himachal Pradesh and Kathmandu in India in search of work .

At that time, teenagers used to go there because they could get a job in the carpet industry in Kathmandu. Children and teenagers used to go to carpet weaving. There were less students in the school because of the less habit of going to school . It is said that the Helambuvasi who went to Kashmir initially brought apple seedlings from Kashmir and planted them. 

After apples, the main vegetable crops of Helambu are turnips and potatoes. Some did not have enough to eat. So Helambuvasi who went to work used to return home in spring. He used to open the locked door and sweep the cobwebs and settle down. It used to snow in Helambu in spring. At that time they used to come even if they had gone out for work.