What does it mean if my tomato plant leaves are curling?
High winds, blowing dust and low humidity can damage the leaves and stems on tomato plants. Heat and low moisture can cause the edges of the tomato leaves to die back, then twist and curl. This is a self- defense response, where leaves and leaflets curl slightly to prevent further water loss (Fig. 6).
How do you treat tomato leaf curl virus?
Use only virus-and whitefly-free tomato and pepper transplants. Transplants should be treated with Capture (bifenthrin) or Venom (dinotefuran) for whitefly adults and Oberon for eggs and nymphs. Imidacloprid or thiamethoxam should be used in transplant houses at least seven days before shipping.
Will tomato plants recover from sunscald?
When suddenly set out in full blazing sun, the leaves can burn. Don’t worry: the plant will recover.
Can overwatering cause tomato leaves to curl?
Both under and overwatering can cause plant stress. Underwater and the plant can’t function correctly; overwater and you’ll damage the roots so the plant can’t function correctly. The stress created by these conditions is thought to cause the leaves to curl inwards.
How do you find the tomato leaf curl virus?
How do you diagnose TYLCV? TYLCV caused a range of symptoms that include marginal leaf yellowing, upward or downward leaf cupping, reduction in leaf size, flower and/or fruit drop, and plant stunting.
What does sunscald look like on tomatoes?
On tomatoes, sunscald will appear as a yellow or white-spotted area on the side or upper part of the fruit that has been directly exposed to the sun. As the fruit ripens, the affected area may become blistered before it finally turns thin, wrinkly, and paper-like in appearance.
What does sunscald look like on tomato leaves?
With continued exposure, damage can progress beyond pale discoloration, quickly leading to a paper-like skin or sunken areas beneath. The color of the sunscalded area takes on a white or light grayish look.
Why are the leaves on my tomato plants curling up?
If your plants have been exposed to certain herbicides, the leaves will curl upwards at all of the edges. The tip of the leaves will also tend to curl up, eventually folding over. The edges of the leaves may also begin to turn yellow.
What are the white spots on tomato leaves?
One of the diseases that causes white spots on tomato leaves is powdery mildew. This is more common to have on squash (and other gourd-type plants), but it does infect tomatoes as well. Powdery mildew is a fungal disease that is common and can be transmitted via woolly aphids.
Why are my tomato plants dying on the outside?
High winds, blowing dust and low humidity can damage the leaves and stems on tomato plants. Injury is similar and is often confused with drift damage from phenoxy-type herbicides (Fig. 6). Heat and low moisture can cause the edges of the tomato leaves to die back, then twist and curl.
How to diagnose tomato yellow leaf curl virus?
To confirm tomato yellow leaf curl virus, submit plant samples to the Texas Plant Disease Diagnostic Laboratory (http://plantclinic.tamu.edu). Pull up and dispose of diseased plants. They key to solving the problem of twisted or curled leaves is to identify the source or sources of the problem.