||I will send deadly wasps ahead of you, and they will drive out the Hivites, Canaanites and Hittites before you.
Veshalachti et-hatsir'ah lefaneycha vegereshah et-haChivi et-haKna'ani ve'et-haChiti milfaneycha.
||I will not drive them out in a single year, however, lest the land become depopulated, and the wild animals become too many for you [to contend with].
Lo agarshenu mipaneycha beshanah echat pen-tihyeh ha'arets shmamah verabah aleycha chayat hasadeh.
Some authorities identify the tzir'ah here with the hornet, Vespa Orientalis, a species that is known to multiply in time of war. It was known as a honey-producing insect (Makh'shirim 6:4), and in Talmudic times, was known to be dangerous (Shabbath 80b; Taanith 14a). Also see Deuteronomy 7:20, Joshua 24:12; Wisdom of Solomon 12:8.
According to others, tzir'ah denotes a type of plague (Saadia; Ibn Janach; Radak, Sherashim), perhaps related to leprosy (Ibn Ezra).
Only the nations to the east of the Jordan (Rashi). Cf. Joshua 24:12.