Link to this page

Tomato leaves have yellow or whitish spots

by Kesha
(Chicago, IL)

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 rain in our area. I also have it planted in a self-watering containers. Will my plant still bear tomatoes or should I start over?

A. There are several possible culprits that could be causing these light colored spots on your tomato leaves, even this early in the season.

  • Early blight, caused by a fungus in the soil, can start as yellow or light-colored spots. Early blight is common in wet, humid weather. But if you used the sterile potting soil that comes with the self-watering planter, then it's not likely that the fungus was present to infect your plant. Treat early blight with a biofungicide or a fungicide.
  • Your wet conditions are also right for powdery mildew, which appears like yellow-colored spots. Looking closer, you may notice they're grayish. Treat powdery mildew with sulfur dust or spray.
  • Leaf mold flourishes in wet weather and spreads eagerly in wind. It appears as greenish-yellow patches on leaves' surfaces, with brownish-purplish on the the underside. Treat with a biofungicide or fungicide.
  • We noticed what looks like holes in the leaves near the light-colored spots. Check for aphids (soft-bodied) or spider mites (reddish pin dots). Spray to dislodge pests and then treat with horticultural oil or neem oil.

With quick and proper treatment, your tomato plant can turn around and produce healthy tomatoes this season.

Good luck ad happy gardening!
Your friends at Tomato Dirt

Comments for Tomato leaves have yellow or whitish spots

Average Rating starstarstarstarstar

Click here to add your own comments

Oct 10, 2015
label NEW
by: Anonymous

manufacturing private label Supplements can help your dreams of having your own product come alive. Intermountain Supplements offers a wide variety of custom formulation services including liquids, capsules, sprays, powders, and more.

Oct 04, 2015
Admarkit NEW
by: Anonymous

NZ's leading Direct Response Marketing and Advertising Agency Admarkit, since 1997. Media buying and advertising campaigns for infomercials, DR TV and radio adverts.

Sep 08, 2015
Singing Lessons Sydney NEW
by: Singing Lessons Sydney

At Forte School of Music, Learning Music is FUN! Learn Piano, Guitar, Singing Lessons Sydney, Saxophone, Flute, Violin, Drums and More. Book a Free Lesson Online Today!

Aug 11, 2015
Good NEW
by: dwdewe

Some of the leaves have yellowish or whitish spots. We have been getting a lot of rain in our area. I also have it planted in a self-watering containers.
tablet service in hyderabad

Jul 11, 2015
whitish spots NEW
by: Chris Mont

Adding mulch to the surface of your greenery enclosure will help to smother weeds, permit you to water less regularly, help shield the dirt from disintegration and compaction, build worm movement and help hold snails and slugs under control.
Best Regards,
@ Freelance Writer

Jun 06, 2015
tomota leaves NEW
by: Herminia

There are many other factors in addition to those discussed above like the amount of nitrate and sodium in the soil and water. Not only that it is also due to the improper knowledge on custom uk essays who has complete remedies for this.

May 28, 2015
i am afraid NEW
by: Bert

In my yard, my leaves are exactly the same as yours. I don’t know what to do. Will it transfer these funguses like thing to the other tomato plants in the yard? If so I will lose my business this month.Beverly Diamonds Reviews

Click here to add your own comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Problems on Tomato Leaves.