Sign in or register to personalize your experience
FAQ #13407

Have a question? Try asking one of our Experts

Is there any tie between the fungus causing Septoria leaf spot on tomatoes and the fungus causing damage on flowering crab apples?

Related resource areas: Gardens, Lawns & Landscapes

The fungus causing the leaf spot on your tomatoes is not the same fungus that infects your crab apple tree. Most fungi that cause disease prefer only one type of plant. Apple scab is caused by the fungus Venturia inaequalis, while the leaf spot on tomato is caused by Septoria lycopersici.

Fungal problems develop when the conditions are right, such as when a fungal spore hits a susceptible plant during wet, humid weather. You can help prevent fungal infection by planting disease-resistant tomatoes and disease-resistant crab apple trees. It is also important to give the plants plenty of room for good air circulation. When watering plants, do not use overhead watering that keeps the leaves wet. Remove the diseased leaves and dispose of them, so the fungus doesn't survive in the soil to reinfect the plant the following year.

Have a specific question? Try asking one of our Experts

Unlike most other resources on the web, we have experts from Universities around the country ready to answer your questions.

Comments

Subscribe to this page's comments

Post a comment about this topic

Please keep comments on topic. To ask a question, please use Ask an Expert. All comments are held for moderation. Comments that include profanity, personal attacks or other inappropriate material will not be posted to the site.

Did you find this page useful?

No one has rated this article yet. Why not be the first? what is this?
not useful
very useful
 1  2  3  4  5

This resource area was created by the:

Consumer Horticulture

community

Copad_horticulture
 

Find an Extension Office

Enter your zipcode to find your local Extension office:

Resource Area Feeds

In This Resource Area

Resource Area Tags

beef cattle corn cotton industry dairy cattle disasters diversity entrepreneurship family caregiving fire ants flower gardening flowers herb gardens herbaceous plants horses horticultural pests human-wildlife relations indoor plants integrated pest management master gardener ornamental shrubs ornamental trees parenting personal finance plant diseases and disorders plant selection plant-insect relations science science education trees and shrubs vegetable and herb gardening vegetable gardens weeds wildlife damage management