Diseases of the celery and celerycan significantly reduce the yield harvested from the plot, and also deprive us of the satisfaction of our own celery cultivation in the vegetable garden. The celery leaves can have numerous stains and discolorations, and the celery roots can crack, become stained, or even rot. See how to recognizesymptoms of celery diseases , in which the photos presented here will definitely help, and learnhow to fight celery diseasesin cultivation on a plot.
Celery Septoriosis
The most commoncelery disease , affecting both root celery and celery, is celery septoriosis (Fig.above). It is a fungal disease. However, before we discusscelery fungal diseases , it is worth paying attention to the physiological symptoms that are not related to pathogen infection, but to improper cultivation conditions or errors in celery fertilization. The latter are often observed becausecelery is very sensitive to micronutrient deficiencies
Physiological celery diseases
Light green or yellow color of celery leavesmay be related to boron deficiency in the soil. In turn,leaf cracking at the base and the formation of brown spots on the celery storage rootsis a symptom of molybdenum deficiency. If in recent years we have observed such symptoms on celery, it is worth applying a multi-component fertilizer containing microelements in the spring.
A physiological disorder is alsogangrene of celery heart leaves , which manifests itself on the edges of the leaf blades (they become watery).Over time, leaves and petioles turn brown and die. This celery disease is caused by excessive humidity in July and August, and numerous haze.and stormy rain. The use of compound fertilizers containing nitrogen, potassium and magnesium helps.
Celery Septoriosis
Celery septoriosisis undoubtedly the most common disease of celery and celery. It is a fungal disease caused by Septoria apiicola.
The firstsymptoms of celery infection with septoriosiscan already be seen on seedlings with brown-gray spots on the cotyledons and leaves. A few weeks after planting the seedlings in a row, dark brown, spherical fruiting bodies of the fungus form within the previously observed spots on the blades and petioles of infected celery within the previously observed spots.
The source of infection with celery septoriosis may be infected seeds and harvest residues remaining in the soil . The development of this celery diseaseis favored by a warm and humid summer.
" Fighting celery septoriosis- if your plot has celery septoriosis, you should stop growing this vegetable for the next 3 years. For cultivation, select varieties that are not very sensitive or tolerant to this disease (e.g. Edward root celery or Jabłkowy GOF celery). Only sow seeds treated with fungicides.
After noticing symptoms of celery infection with septoriosis, it is best to remove diseased plants. We also spray with a fungicideAmistar 250 SCIt is packaged by the Target company in packages of 5 and 25 ml. This is the onlycelery septoria agentthat I found in small packages for amateur use ( although the list of septoriosis agents is long, the rest of them are only for large-scale agricultural applications) . Use Amistar 250 SC on celery in the amount of 8 ml of the agent dissolved in 7 liters of water.100m² of beds can be sprayed with this amount. 2-3 sprayings should be applied at intervals of 7-10 days. "
Celery stick
Celery stick
Celery stickiness , just like septoriosis is a fungal disease that affects both root and celery. The disease is caused by the fungus Cercospora apii, and the source of infection may be infected seeds and plant debris remaining on the beds.Symptoms of celery infection with this diseaseare irregular, angular spots, gradually enlarging. The tissues of the affected part of the leaves gradually turn yellow, turn brown and collapse. Plant growth significantly impaired. Celery tassel is often confused with septoriosis.
Fighting celery tasselis almost identical to septoriosis - sow only treated seeds, in the event of disease occurrence, celery should not be grown for another 3 years.However, there is nothing to be guided by the resistance of celery varieties to tassel, because those resistant to this fungus, in turn, are easily affected by powdery mildew. Unfortunately, I was not able to find a means to combat celery in amateur crops.
