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.
Fall starts Tuesday, according to meteorologists. Meteorological fall (aka autumn) is defined as the months of September, October and November in the Northern Hemisphere (it's spring in the Southern Hemisphere). Most people consider the first day of autumn to be the autumnal equinox, which this year is September 23, according to WeatherBug meteorologist Mark Hoekzema. This is because, astronomically, the sun will be directly overhead of the equator as the Earth`s tilt begins to point the Northern Hemisphere away from the sun.