Gagged by a Gaggle of Gnats

Went out for a run without a destination in mind today, and cut through Dimond Park to run down one of the Dimond Canyon Hiking Trails. My efforts were temporarily thwarted by a gaggle (pack? pride? herd?) of gnarly gnats. As I ran along the scenic, shaded, cool trail, the gnats formed a moving cloud around my head. Making a 180 degree turn after about 1 minute of this attack, I decided to run through the better manicured neighborhoods of the Oakland hills, among the lavender bushes and bougainvilleas. Today's run: 5.5 miles. Does anyone have a good 3 month marathon training plan?