A Gardeners Forum Forums General Discussion The Food Garden Forum The Tomato Forum Lower leaves on my 'maters turn yellow

Every year I grow tomatoes the lower leaves turn yellow and fall off.The plant eventually recovers.Am I underwatering? Or is it some sort of disease?

Thats normal alot of times for tomatoes. Look at the branches that are turning yellow- where it joins the main stem. If you see a small sprout at the joint- the plant is just shedding off the sucker branch for new growth. I usally just prune off the yellow branch when the weather is dry if thats the case(dont do if its wet and rainy- for disease reasons) or they just fall off or on there own.