And yet it is most likely to serve as a SIGN from our Heavenly Father, so we are to take notice.
The coming of the locust army of the Book of Joel is a 5th Trumpet - 1st Woe event per Revelation 9. It is not about literal locusts, but God uses the idea of real locusts as a metaphor to describe how that army attacks His people at the end of this world. The real locust army is about Satan's workers on this earth driving the events to create a one-world system in prep for Satan's coming to be king over it. This army God said He sends, per Joel 2:25, and will in final restore to His people what they ate up.
Thus the present literal locust attack in Africa could indeed serve as a SIGN from God about the 'times' we are now in, or entering into.