
Causes of Tomato Plant Leaves Curling Inward
- Wind Damage Wind damage occurs when high, dusty, and low humidity winds damage the leaves or stems of the tomato plant. ...
- Change of Seasons When spring season turns to summer, the physiological leaves roll is seen first on the lower, older leaves, as an upward curling and inward rolling of leaves towards the midrib. ...
- Exposure to Chemicals ...
- Tomato Pests ...
- Tomato Viruses ...
What does it mean if my tomato leaves are curling?
What Makes Tomato Leaves Twist or Curl
- Wind damage. High winds, blowing dust and low humidity can damage the leaves and stems on tomato plants. ...
- Herbicide drift. Crops and pastures are often treated with herbicides to prevent or eliminate weeds, and drifting spray can damage tomato plants.
- Herbicide residue. ...
- Broad mite damage. ...
- Tomato viruses. ...
- Summary. ...
How do you cure tomato leaf curl?
Remedies for Leaf Curl in Tomato Plants
- Tomato Yellow Leaf Curl. Tomato yellow leaf curl disease is caused by the pathogen, tomato yellow leaf curl virus (TYLCV). ...
- Weather Stress. Tomatoes are sensitive to climate conditions. ...
- Non-Parasitic Leaf Roll. Non-parasitic leaf roll is another climatic problem. ...
- Herbicides. ...
Why are my tomato leaves turning upside down?
- Phosphorus Deficiency – this can happen in a few different ways (this happens more often for tomato seedlings or when the air is cold). ...
- Intense Light – this can happen indoors or outdoors (more often for young tomato plants)
- Pests – they can cause stress and transmit diseases.
- Diseases – some can cause the leaves to turn purple.
Why do the leaves curl on my tomato plants?
Why Are My Tomato Branches Curling?
- Environmental stress. Tomatoes are one of the most sensitive plants so a little change in the environment can impact them.
- Underwatering or overwatering. Tomatoes are a warm-season vegetable that needs a lot of water to grow juicy, flavorful tomatoes. ...
- Too little or too many nutrients. Tomato plants are a hungry resource. ...
- Diseases. ...
- Insect infestation. ...

Can tomatoes recover from leaf curl?
As long as there are other growing points remaining, the plant can recover, and the leaf curling will only be a temporary observation.
Why are my tomato leaves curling inwards?
Tomatoes are easy to grow but they're more delicate than some gardeners realise. Inadequate watering, over-watering, unstable temperatures, and hormone weed killers are among the main causes of leaf curl.
How do you treat curling leaves on tomato plants?
Irregular irrigation and improper pruning cause the leaf edges to roll inward, sometimes to the point of overlapping. When most of the leaves on the plant are affected by this condition it may look serious, but it is not permanent. The remedy is deep, even watering on a regular basis and careful pruning.
Should I remove curled tomato leaves?
Cure for Tomato Leaves Curling Although physiologic effects for tomato leaf curl do not affect the overall growth or crop yields of plants, when the tomato leaf curling is due to a viral infection, removal of the infected plants is necessary.
What are the signs of over watering tomato plants?
Overwatered plants may have wilted or yellowed stems and leaves, or the leaves might develop bumps and blisters or fall off entirely if plants continue to get too much water. Another way to tell overwatered plants from underwatered ones, once the case is severe enough, is to check the roots.
Do tomato leaves curl from too much water?
Hot and dry conditions during summer months can create drought conditions, these conditions can cause your tomato leaves to curl. Tomato plants will curl/roll their leaves to help conserve water as a type of self-preservation. Too much water is another form of water stress that can cause your tomato leaves to curl.
Will too much fertilizer make tomato leaves curl?
Tomato leaf curling could also be an indication of too much fertilizer. As far as over-fertilizing goes, the lower leaves of your tomatoes roll upward until the side edges touch. The affected leaves then become thick and leathery.
Can overwatering cause tomato leaves to curl?
Leaf curl is the tomato's way of reducing leaf surface area to reduce water loss. Curling up will not affect fruit production or the health of the plant. Upward leaf curl can also result from overwatering. Too much water can cause roots to rot.
How can you tell if a tomato is curly top virus?
How to Identify Curly Top VirusThe leaves of the infected plants, especially tomatoes and peppers, twist and curl upwards. ... The leaves turn yellow with purplish veins. ... Older plants might show stunted growth.The yield is reduced, and fruit ripens prematurely and is deformed, looking dull or wrinkled.
How often should you water tomato plants?
Water newly planted tomatoes well to make sure soil is moist and ideal for growing. Early in the growing season, watering plants daily in the morning. As temperatures increase, you might need to water tomato plants twice a day. Garden tomatoes typically require 1-2 inches of water a week.
How often should I water tomatoes in pots?
Water tomato plants in pots daily. Tomatoes are thirsty plants, especially when they begin to gain size, so they'll do best when watered at least once a day. Morning is the best time to water.
What Causes Tomato Leaves to Curl?
Environmental, chemical, or biological factors may cause tomato leaf curling. Environmental factors lead to self-defensive mechanisms by the plant...
Why Are the Bottom Leaves of My Plant Curling?
Leaf curling occurs due to environmental stressors such as excessive moisture, heat, drought, transplant shock, severe pruning, and root damage. Th...
How Do You Treat the Tomato Leaf Curl Virus?
Tomato leaf curl virus cannot be treated. The intervention involves preventive measures such as using a virus and white-fly free tomato transplants...
Why Are My Tomato Plant Leaves Curling Inward?
The five primary reasons for tomato curls are wind damage, herbicide drift, herbicide residues, broad mites, or tomato viruses.
Why are the bottom leaves of my tomato plant curling?
Why Are the Bottom Leaves of My Plant Curling? Leaf curling occurs due to environmental stressors such as excessive moisture, heat, drought, transplant shock, severe pruning, and root damage. This change is the first sin in lower older leaves on the tomato plant.
Why do tomato plants curl their leaves?
With this physiological leaf roll, the tomato leaves, as well as its leaflets, slightly curl to protect themselves from more water loss.
How do you know if a tomato plant is infected by a herbicide?
The herbicide injury symptoms are downward rolling or twisting of leaves, split, thickened, twisted, hardened stem, chlorotic plant, and deformed fruits. The extent of damage depends on the quantity of the chemical exposure. The tomato plant can recover if only a little herbicide gets to it, although the yield still suffers.
How to prevent tomato seedlings from rooting?
Proper hardening off tomato seedlings before planting, maintaining appropriate temperatures, use of right fertilizers while careful to avoid root damage and excessive pruning, planting different tomato varieties, and maintaining the soil’s moisture level are some measures that you can do to handle this problem.
Why do my tomato leaves curl?
Tomato leaves curl as a symptom of chemical injury caused by exposure to chemicals such as pesticides, herbicides, or insecticides.
What does it mean when a plant's leaves curl?
Symptoms of curling, folding, or rolling of the leaves are primary indicators that something is not right with the plant. Early diagnosis and intervention on the problem can go a long way towards preventing adverse effects on the whole plant, depending on the cause of the problem.
When do tomato leaves curl?
This is the most common version of tomato leaf curl you’ll encounter. This happens particularly during summer and spring as the temperatures rise.
Why are my tomato plants' leaves yellowing?
The lack of nutrient uptake – in particular, nitrogen – causes yellowing leaves. The result of a nutrient deficiency with overwatered tomato plants is downward leaf curl with yellowing leaves. The yellowing is the nitrogen deficiency and the leaf curling downwards is the lack of water uptake. Before you reach for the fertilizer, know ...
What is the carrier of the tomato leaf virus?
Similar to how the Curly Top Virus is transmitted by the beet leafhopper, it’s the whitefly that’s the carrier of the Tomato Leaf Curl Virus.
What happens when tomato pinworms hatch?
When the eggs hatch, tiny caterpillars emerge and start burrowing to feed on the leaves. Signs of damage by the tomato pinworm are brown blotches and streaks along the leaf edges. At first, it causes the leaves to fold inwards creating a cocoon, sort of like a shelter.
What is a tomato pinworm?
The tomato pinworm is a tiny caterpillar that comes from a species of micromoth, only a few millimeters in size.
Why does my hair curl?
Molybdenum deficiency causes the strongest of inward curling and it’s this deficiency you ought to be careful with because it shows similar symptoms to a nitrogen deficiency.
What happens if you leave a goji berry uncorrected?
If left uncorrected, this leads to blossom end rot, a common goji berry plant problem, which is (unsurprisingly) part of the same Nightshade family that tomato plants belong to.
Why are my tomato leaves curling?
The most likely cause of tomato leaves curling is excessively hot conditions. During the mid-summer months, afternoon sunshine can be very intense. As a result, your tomato leaves may begin to curl as a defense mechanism. If you have had a heatwave and your tomato leaves have begun to roll, this is almost definitely the issue.
What is the term for the curling of the leaves on a tomato plant?
This type of leaf curling in plants is known as physiological leaf roll, and it is a permanent change in the shape of the affected leaves. In other words, once the tomato leaves have curled, they will not un-curl.
How to tell if you're overwatering a tomato plant?
If you are overwatering, your plant’s roots will essentially begin to drown. One of the earliest warning signs of overwatering is tomato leaves curling.
How to flush out nutrients from tomato plants?
In extreme cases, you may wish to flush out the soil by watering and draining potted tomato plants several times . This effectively reduces the concentration of nutrients available in the soil.
How to prevent diseased tomato plants?
Be sanitary in the garden. Bottom prune tomato leaves to avoid soil splashing on to them. Unfortunately, the only recommendation I can give for a diseased plant is to remove it from the garden. If you can, burn the affected plant far from your garden. Never compost a diseased plant!
How to tell if a tomato plant has an infestation?
If an infestation happens, you will eventually see signs of their presence. One of the common signs is tomato leaves curling. This type of curling will usually affect smaller, younger foliage, as this is what many pests are attracted to.
What are the pests that can be found in tomato plants?
Broad mites, aphids and other tiny insects can be a huge headache for tomato growers. These hard-to-spot pests can show up unannounced and cause massive damage if left untreated.
Why are my tomato plants curling?
It’s more common to see tomato plant leaves curling when the tomato plants are in containers. This is mainly down to the following reasons: 1 Insufficiently Sized Container – Look to re-locate to larger sized 1to 2 square feet. 2 Inconsistent watering – Containers dry out more easily so review your watering schedule and consider drip feeding 3 Soil Quality – The soil quality may not be enough, consider mulching with organic matter like kitchen compost 4 Nutrients – As well as the above, make sure you are feeding on schedule. This is important with tomatoes in containers because nutrients can easily escape.
What Does Tomato Plant Leaf Curling Look Like?
I spotted this leaf curl in my allotment greenhouse. As you can see the lower leaves are starting to curl upwards but just on this one plant.
Do I Need To Destroy The Plant?
I will usually never give up on a tomato plant as long as it’s still growing and has healthy fruit. If you have other signs of diseases then just isolate the plant.
Why are my tomato leaves turning yellow?
Tomato Yellow Leaf Curl Virus. Your plants may have this virus if it displays the following symptoms: Stunted Growth – bushy appearance. Flowers Don’t Develop and Form Fruit. Leaves Curl AND Go Yellow. If you do have the Yellow Leaf Curl Virus then it may be best to destroy the plant than let it spread to others.
Why are my leaves curling up?
Leaves curling up is a sign of stress either from the environment or physiological. The root cause is often unclear but look at recent changes in damage, fertilizer methods, temperature, pruning or damage.
How to prevent tomato leaf curling?
There are steps you can take to prevent the risk of leaf curl. Some things you have to accept are largely outside of your control such as the weather and environmental conditions. Plant Disease Resistant Varieties. Regular Consistent Care – watering, feeding.
Can you move tomato seeds outside?
And it’s nearly always environment or stress. A common issue is people start their tomato seeds indoors and then move them outside. This simple transition even in good weather can shock the tomatoes. What is important to do is harden the tomatoes by progressively introducing them to a new environment.
Why are my tomato plants' leaves curling?
Other Reasons for Tomato Curling Leaves. Another cause of tomato plant leaf curling, also known as leaf roll, is attributed to physiological conditions. While its exact cause may be unknown, it’s believed to be a sort of self-defense mechanism. During excessively cool, moist conditions, leaves may roll upward and become leathery in an effort ...
Why do tomato leaves curl?
Curling tomato leaves may also be triggered by just the opposite—uneven watering, high temperatures, and dry spells. Leaves will curl upward to conserve water but they do not take on the leathery-like appearance. Plum and paste varieties are most commonly affected.
How to prevent tomato leaf curl?
The key to managing tomato leaf curl is through prevention. Plant only pest and disease-resistant varieties. Also, protect garden plants from possible whitefly infestations by adding floating row covers and keep the area free of weeds, which often attract these pests.
Why are my sage leaves leathery?
During excessively cool, moist conditions, leaves may roll upward and become leathery in an effort to repel this excessive moisture. This specific condition occurs around fruit setting time and is most commonly seen on staked and pruned plants.