In short, the closer the locusts were to the cub, the more miserable they were. They had to exceed a distance of two or three miles before they could completely escape the effects of the gravity field.
The brilliant performance made Hudson want to ride on the cub and stroll around in the locust army. Simply gathering and releasing the gravity field a few times, could result in the complete slaughter of the locusts within the covered area.
When it comes to pest eradication efficiency, this was more effective and environmentally friendly than any pesticide. No matter how large a locust army was, it could be defeated.
However, considering this operation's objective, Hudson eventually suppressed this tempting thought. By doing this, the locust army might disperse, but the prime culprit, the Insect King, could escape too.
For a species like locusts with an unusual reproductive speed, as long as there is one Insect King alive, it will not take long for another locust army to form.
