But God prepared a worm at dawn the next day, and it chewed on the vine, so that it withered.
Regarding the "worm" mentioned in this verse, Deane wrote that the term could be used here collectively, as in  Deuteronomy 28:39, thus meaning "worms,"[20] that is, a sudden massive infestation of them.  This appears unnecessary, however; one worm operating strategically upon the main stem of the gourd at, or near, ground level, would have destroyed it as effectively as any army of 10,000 worms, especially when aided by the scorching east wind that arrived almost simultaneously to hasten the destruction of the gourd.  There is no use for the commentators to help the Lord out with little problems of this kind.  The whole account clearly deals with events which the inspired author attributed to the direct intervention of God. In short, they are miracles.