In 1921 B. P. Uvarov demonstrated that the swarming locust was none other than an ordinary species of grasshopper. However, when moisture and temperature conditions favored a large hatch, the crowding, unceasing contact, and jostling of the nymphs begin to stimulate changes in coloration, physiology, metabolism, and behavior, so that the grasshopper nymphs make the transition from solitary behavior to the swarming gregarious and migratory phases of the dreaded plague. Plagues continue as long as climatic conditions favor the large hatches. Once entering their gregarious phase, swarms, of locusts can migrate great distances and have even been observed twelve hundred miles at sea. I remember being very overwhelmed with the tragedy.
Every individual is affected and mourns.
One result of the devastation was that there was no grain to make offerings to the Lord, consequently, their sacrifices had to stop and their relationship with God was severed. Perhaps that was part of God's plan. Perhaps God didn't want their sacrifice. He wanted their hearts. Here we see what their response should be to the devastation.