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.
Here are the months of the year divided into seasons with the actual dates: Spring - Spring goes from March 21st to June 20th. Summer - Summer runs from June 22nd to September 21st. Fall - Fall falls between September 22nd and December 20th. Winter - Winter descends from December 21st to March 20th.