Insect Plagues?

Pakistan agriculture has been hit particularly badly this year by swarms of Migratory locusts from the UAE and Iran (https://www.theguardian.com/world/2020/may/25/many-will-starve-locusts-devour-crops-and-livelihoods-in-pakistan). The insects decimate cash crops (like cotton) and food crops (like mustard) and are reckoned to be accounting for more than £4bn of losses to farmers in that country. The fear is that the swarms will inevitably produce starvation in the region. Although farmers naturally fear these insects, the vast majority of land arthropod species are beneficial to agriculture. Spraying with insecticides may, therefore, not be the answer (these chemicals can also cause sickness in the sprayers as well as in local human populations, if it is not done carefully with protections).