There are many stories out online about the plague of locusts in Egypt, this is just one. The plague is very interesting … certainly devastating for Egyptian crops. We need to note, however, that from all info we can gather thus far, that Israel is not “panicking” over this as many news stories have indicated. Rather they took swift and decisive action, which is certainly wise and practical. Apparently this locust plague was also in Sudan in mid-February. Not sure what the Egyptian reaction was at that time, or if perhaps the number of locusts increased so rapidly (and perhaps inexplicably?) that there was no time for real preparation.

http://newsfeed.time.com/2013/03/04/locust-swarms-descend-on-egypt-like-biblical-plague/