icing - tender and slow - growing , celery plant are susceptible to a wide range of disease . Celery demand about five months to mature . Apium graveolens dulce can become infect by both computer virus that are because of bacterium and diseases because of fungi . Most celery diseases are difficult or monetary value - prohibitory to treat , result in departure of the crops .

Leaf Blights

have by the harmful fungi Cercospora apii or Septoria apiicola , leaf blight diseases are most predominant in celery plants during smashed experimental condition . The fungi can over - wintertime on infect seeds or diseased plant parts , spreading readily from flora to plant . Cercospora blight causes yellow post on both sides of the celery works ’s leaf . As the spots flourish , they bend grayish and develop a juiceless , papery texture . These spots can also happen on the stalk . Septoria blight causes similar white-livered spots that turn grayish , but the spots are unremarkably skirt with darker - distort gross profit and have tiny black hint within the leaf spots .

Aster Yellows Mycoplasma

transmit by the aster leafhopper , aster yellow mycoplasma is a disease that causes shining yellowish discolouration and stunt growth in celery industrial plant . Controlling this disease is difficult , but the distinctive treatment is to apply insecticidal sprays to control the aster leafhopper universe .

Yellows Diseases

yellowness are diseases do by the fungi Fusarium oxysporum and Fusarium apii . Yellows get the celery plants to become unannealed , bitter - tasting , and decompose in the roots and crown . The inner plant tissues may turn yellowish - brown to red . Most predominant during lovesome weather , the fungus that causes yellows diseases can build up and stay in the soil .

Cucumber and Celery Mosaic Virus

Cucumber mosaic virus causes yellowing and decomposition or necrosis of the leaf nervure , as well as slenderly sunken lesions that are light - sunburn on the foliage leafstalk . Also unremarkably called southerly celery mosaic , this virus make unseasoned celery plants to have stunt growth . Celery mosaic virus make similar symptoms , but it ’s transmitted by aphids and do malformation of young cultivated celery plants ' foliage , forming cupped leaves .

Black-Heart Disease

bootleg - heart is a disease in celery plants that ’s because of a calcium deficiency in the soil . Celery plants with fatal - heart disease develop weewee - soaked tips on their young leaves that turn chocolate-brown and inflate to cover all the central foliage . Black - heart disease is most coarse during drier weather and when potassium storey are much higher than calcium levels .

Pink Rot

Pink molder is a fungous disease that can do celery plants to dead wilt , collapse and break . do by the fungus Sclerotinia sclerotiorum , pinkish rot promptly creates water - soaked , pinkish , decayed field on the basal crown and leaf leafstalk . Pink rot typically affects cultivated celery plant when conditions are damp and temperature are cool , commonly frigid than 77 degrees F. This fungal disease can stay in the soil for several years and can develop a white mold over the rotted celery flora component .

Bacterial Soft Rot and Rhizoctonia Stalk Rot

Bacterial soft buncombe get soft decay and urine - soak flora parts in celery , unremarkably go with by a disgusting odor . This disease is due to the bacterium Erwinia carotovora and is most prevalent during lovesome , plastered weather . Bacterial soft spot infect Apium graveolens dulce plant by recruit the plant life tissue paper through hurt field or wound . Rhizoctonia stalk rot , however , is because of the fungus Rhizoctonia solani and creates rust fungus - red , sunken lesions on the Apium graveolens dulce industrial plant ’s stalk and basis .

References

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