Problems on Tomato Leaves: How to Identify, Treat, and Prevent Them

Problems on tomato leaves can mean the onset of a disease, an attack from a tomato pest, a nutrient deficiency, or conditions that can lead to trouble.

Healthy tomato plants have leaves that are green and evenly-colored. Look for these red flags on your tomato leaves to quickly identify problems.

Black, brown, dark, or water-soaked spots

Bacterial speck
Bacterial spot
Early blight
Gray leaf spot
Late blight
Septoria leaf spot
Spider mites
Tomato spotted wilt virus

Dark streaks

Tobacco mosaic virus

Holes in foliage

Tobacco hornworm
Tomato cutworm
Tomato hornworm

Irregular spots

Gray mold
Late blight

Leaf browning

Bacterial canker

Leaf distortion

Herbicide injury

Leaf mottling

Cucumber mosaic virus
Tobacco mosaic virus

Leaf roll

Curly top virus
Herbicide injury
Physiological leaf roll
Potato leaf roll

Purpling veins

Phosphorus deficiency

Spiral designs

Leaf miners
White flies

Sticky dew (“honeydew”)

White flies

Stripped foliage, defoliation

Tobacco hornworm
Tomato cutworm
Tomato hornworm

White spots

Leaf mold
Magnesium deficiency
Powdery mildew
Spider mites

Yellowing and wilting

Bacterial canker
Bacterial pith necrosis
Bacterial wilt
Fusarium wilt
Iron deficiency
Pith necrosis
Salt damage
Tomato spotted wilt virus
Verticillium wilt

Steps to take to prevent problems on tomato leaves

  • Plant healthy, disease-free plants.
  • Water at the base of plants. Overhead water spreads disease easily.
  • Water in the morning or midday to minimize the amount of time leaves are wet.
  • Monitor plants daily to check for pests.
  • Avoid working on plants when leaves are wet.
  • Remove and destroy affected plants at the end of the season.
  • Solarize soil at the end of the season to destroy soil-borne fungi and bacteria.
  • Rotate crops each year.

Some reasons tomato leaves may have problems

Different kinds of tomato blight and how to tell them apart ...

How to identify and treat early blight ...

How to identify and treat late blight ...

How to identify and treat Septoria leaf spot ...

How to identify and treat fusarium wilt ...

How to identify and treat verticillium wilt ...

How to identify and treat bacterial wilt ...

How to identify and treat walnut wilt ...

How to identify and treat gray leaf spot ...

How to identify and treat phosphorus deficiency ...

Tomato worms: how to keep them away from leaves and stem ...

Tomato hornworm can defoliate your plants ...

Other tomato problems

Problems on tomato stems ...

Problems on tomato fruit ...

Tomato diseases: how to identify and control them ...

Tomato pests: how to identify and control them ...

Are There Problems on Your Tomato Leaves?

Do your tomato leaves have a problem? Explain what the problem looks like. Share what tomato variety you’re growing and when you first noticed the problem. While you’re at it, describe your growing conditions, the weather, and how much water your plants have had. Any details you can share will help us help you with the problem on your tomato leaves!

[ ? ]

Upload 1-4 Pictures or Graphics (optional)[ ? ]


Click here to upload more images (optional)

Author Information (optional)

To receive credit as the author, enter your information below.

(first or full name)

(e.g., City, State, Country)

Submit Your Contribution

 submission guidelines.

(You can preview and edit on the next page)

What Other Visitors Have Said

Click below to see contributions from other visitors to this page...

Topsy Turvey Tomatoes - leaves have yellow spots 
Q. My Topsy Turvey Tomato plant's leaves have yellow spots. Could this be from over watering? I live in Southern California & we have been having a heat …

Cannot grow tomatoes 
Q. I have planted tomatoes for the last four years but they bear little fruit and what they do produce does not ripen. This year, I had the soil removed …

Tomato leaves have white narrow random trails, yellowing, and some brown curling edges  
Q. Tycoon tomato plants, outdoor growing area for fall, hot (95'+) and dry; may be a little aggressive on the watering. Plants where re-potted to larger …

Leaves are turning brown from the bottom up 
Q. I have two tomato plants in my garden. They grew up and out very quickly and appeared to be thriving during the beginning of the summer. The past couple …

My dwarf tomato plant's leaves are getting yellow and wilty from the bottom up 
Q. I bought my "patio" (dwarf) tomato plant from a store and re-potted it with store-bought potting soil. It seems healthy, and is producing tomatoes, …

My tomato plant has yellow leaves 
This is my first garden. I planted both cucumbers and Brandywine tomatoes. The cucumbers have already started dying. The leaves turned yellow then brown …

How to treat Fusarium wilt? 
Q. I usually buy my tomato plants from local hardware stores. Every year I add my own compost to the garden and sterilize the soil prior to planting. This …

Leaves have spots that are turning yellow and then drying up 
Q. For the past few weeks I have had yellowing then drying leaves on my tomato plants. there isn't much else to say about it...Here are a couple photos …

Tan Spots on Leaves 
Q. I'm having problems with tan spots appearing on the leaves of my plants. These are San Marzano tomatoes that I started by seed. I'm using the Gardener's …

My tomato plant's leaves are falling off 
Q. I bought a tomato plant and planted it in a clay pot. Now, after a few weeks, the leaves at the bottom are falling off. There are tomatoes on the plant, …

My tomato plant's leaves are yellow in the center 
Q. My tomato plant is about 24" high and has approx 20 small (marble sized) fruit. The plant seems very sturdy and the leaves are very green. The center …

Yellowish spots with grey outlines 
Q. My tomato plants have yellowish spots with grey outlines, mostly on the lower leaves. Not sure what it is, but there are no fruits on the plants yet, …

Silvery, winding trails on my young tomato plants - leaf miners?  
Q. What is the best way to treat my seedling Campari tomato plants? I have just transplanted them into larger pots from the starter peat discs and I noticed …

One of the 5 strains of heirloom tomato seedlings have a leaf problem 
Q. My tomatoes are about 8 weeks old. Just one variety has an issue. First, the veins in the leaves are drying up and then the leaf itself curls. These …

Leaves drying on seedling ends and falling off 
A. I have a unique situation where I bought a LED grid light this winter and planted indoor tomato seeds on January 15. Now, eight weeks later, I have …

Brown spots on tomato leaves, turning necrotic 
Q. I've noticed over the last few weeks that the leaves on my tomatoes, which are mostly heirloom varieties, have developed brown spots which eventually …

Indoor tomato plant leaves are yellow and curling 
Q. We purchased a tomato plant already potted in Florida and carefully brought it back to western PA in the beginning of December. At first the plant …

Tomato Plant Leaves Have White Spots 
Q. Our tomato plants began having white spots on the leaves which eventually overtook the entire leaf that became all white, withered and died. We live …

Wilting and eventually death 
Q. I'm stuck between thinking the wilting and death to my tomato plants may be pith necrosis or walnut wilt. There is an abundance of walnuts nearby and …

Yellow, curling, mottled leaves on my potted tomato plant. What is it? 
Q. How do I treat yellow, curling, mottled leaves on my potted tomato plant? A. Yellowed leaves by themselves could indicate under-watering, over-watering, …

My tomato leaves are curling, but have no spots 
Q. My tomato leaves are changing. They look like they are curling, and are now misshaped. Ihe middle vein is getting bigger and the leaves are puckering. …

Tomato leaves have yellow or whitish spots 
Q. I am trying to grow tomatoes in a container and have noticed that some of the leaves have yellowish or whitish spots. We have been getting a lot of …

Q. I planted 10 tomato plants and every one has wilted. I have tomatoes on a few of them, but I don't think they will ripen. Last year, the same thing …

Problems on tomato leaves: light spots 
Q. I see that you have that problem listed, but can you tell me what causes light spots and how I can help my plant? I'm growing my tomatoes in huge pots. …

Click here to write your own.

White "channels," on leaves...look like little paths 
Q.The leaves of my plants have little curvy channels from the bottom of the plant up. The lowest leaves are turning yellow and brown. What is this and …

Yellow Leaves On Young Tomato Plants 
Q. The lower leaves on my young tomato plants are turning yellow. What can this mean? A. Yellow leaves can mean several things. Check other symptoms …

White spots showing on leaves and leaves wilt 
There are white spots showing on tomato leaves. Also the leaves are wilting. I have seen some small flies on the plants. Can this be the problem? …

Yellow leaves with silver black edges on container tomatoes 
Dear Tomato Dirt , Hi there. I am trying to grow tomatoes in pots. A couple of them are getting yellow leaves with black silver edges. The plant still …

Tomato problems:
tomato leaves are turning yellow
and stems are dying off
Dear Tomato Dirt, Can you help please? The leaves on my tomato plant are yellowing and the stems are falling off. Am I over-watering? Do they have …

Tomato disease: black spots on leaves 
I have 10 cherry tomato plants in my front yard next to my porch in a 8 x 9 area. My neighbor told me to sprinkle powdered milk all over my plants and …

New growth on tomato plant is turning black 
Q. One of my tomato plants is turning black on the top three leaves. The new growth that will soon emerge also looks black. The bottom leaves of the plant …

Holes in several tomato leaves 
Q. I keep finding holes in the tomato leaves. Some books tell me that it's normal and some say it's not at all. I'm really confused! A. Holes in leaves …

Curled leaves and flowers on tomatoes 
Q. My tomato plant leaves and flowers are curling. I don't see any pests. They don't have brown spots or brown edges. Can you tell me what the problem …

Tomato leaves have dark patches on them - how to treat organically? Not rated yet
Q. I am looking for a way to treat dark spots on tomato leaves without harsh chemicals. Can you help? A. The first step is to determine what the problem …

Click here to write your own.

Return from Problems on Tomato Leaves to Tomato Dirt home

New! Comments

Have your say about what you just read! Leave a comment in the box below.

Join us on Facebook

Follow Me on Pinterest

FREE! Tomato
Growing Tips
20-page guide
when you sign up for
Tomato Dirt newsletter!