Root Knot Nematodes. If your tomato plants are stunted, their roots have knots (galls) and the foliage is pale yellow, they are most likely infested with root knot nematodes. The galls caused by the nematodes keep the roots from sending nutrients up to the foliage, which causes the stunting and yellowing.
The time when fall starts is between summer and winter. As with the other seasons, its commencement differs and is based on the hemisphere you are in. Commencement Dates. In astronomical terms the season begins on September 22 up to November 22 in the Northern Hemisphere.
Alas, summer is coming to a close because September 22 is, however unfortunate, the first day of fall. The season officially begins at 4:44 p.m. EDT during the autumnal equinox, when the sun crosses directly over the Earth's equator and both day and night are about equal. Fall will last a solid three months until the beginning of Winter on December 21, according to the U.S. Naval Observatory. But all is not lost!