Nepal, April 10 -- In 2019, the fall armyworm arrived in Nepal and destroyed crops, particularly maize, in a large swathe of land belonging to thousands of farmers across the country. The risk of armyworm invasion is not over, and experts have cautioned that they could strike back.

Now, agro-scientists say they have a remedy.

Scientists at the Agriculture and Forestry University at Rampur in Chitwan said they now have a twin strategy to destroy fall armyworm.

"We have developed a tube in our lab, in which we grow wasps or hornets and fungus. The wasp destroys the eggs of armyworms," said Sundar Tiwari, associate professor at the Agriculture and Forestry University. "Even if the larva of armyworms grow from the eggs not destroyed by was...