- Author: Lauren Fordyce
Tomatoes are ripening all over California right now keeping many gardeners and tomato lovers busy picking, canning, and eating. But what may not make gardeners happy are seeing curled leaves and not knowing why. There are many reasons why your tomato leaves may be curling or rolling. Being able to narrow down possible causes takes a bit of detective work, but using this article and UC IPM's Plant Problem Diagnostic Tool can make it achievable!
Tomato leaf curl can be the result of:
Environmental stressors
Leaf curl on tomato is often caused by environmental stress, not necessarily pathogens or...
Peach leaf curl is a disease that affects peach and nectarine trees. Although you may not see symptoms right now in the dormant season in California, it's time to think about treatment, especially if your tree had the disease last year.
Symptoms of this fungal disease include distortion, thickening, and reddening of foliage as trees leaf out in the spring. As weather warms, damaged leaves that die and fall off trees are replaced with new, usually healthy leaves. However, after several years without treatment, peach leaf curl will cause tree decline and reduced fruit production.
Avoid peach leaf curl by growing varieties resistant to the disease. For nonresistant peach and nectarine trees, consider spraying with...
- Author: Lauren Snowden
- Editor: Melissa G. Womack
![Tomato leaf roll. [R. Wallace agrilife.org]](https://ucanr.edu/blogs/UCIPMurbanpests/blogfiles/37508small.jpg)
From the UC Master Gardener Statewide Blog
The tomato is one of the most versatile and rewarding plants to grow in a summer edible garden. According to a 2014 study by the National Gardening Association, 86 percent of homes with vegetable gardens grow tomatoes. It's understandable that the tomato plant is a popular home vegetable garden staple, tomatoes offer thousands of different varieties options and flavors. Plus, nothing beats the flavor of a ripe tomato straight from the garden!
When properly cared for, a single tomato plant can produce 10 to 15 pounds (4.5 to 6.8 kg) or more of fruit. If tomato yields aren't what was...
![Foliage damaged by peach leaf curl. [Photo by J.K. Clark]](https://ucanr.edu/blogs/UCIPMurbanpests/blogfiles/26254small.jpg)
Winter is a key time for gardeners to take preventive actions against peach leaf curl in some areas in California. Caused by the fungus Taphrina deformans, peach leaf curl causes distortion, thickening, and reddening of foliage as peach and nectarine trees leaf out in the spring. Damaged leaves often die and drop, but they will be replaced with new, healthier leaves once the weather turns dry and warm. An untreated leaf curl infection will contribute to a tree's decline over several years.
To prevent peach leaf curl in areas where the disease occurs, treat susceptible trees with preventive fungicides during the dormant season, ideally in late November or December. A second application should...
