MySheen

tulip rot sclerotinia

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, Tulip rot sclerotinia disease, pathogen belongs to semi-known fungus sclerotinia, mainly harm seedlings and bulbs. After the seedlings are infected, the leaflets die as soon as they are pulled out. Bulbs damaged, external scales occurred soft rot, and in the infected part and the surrounding soil surface appeared many white silk hypha, after the formation of many rapeseed sclerotia. After the formation of many sclerotia, sclerotia initially white, brown after. Pathogenesis of this disease depends on mycelium and sclerotia transmission, sclerotia winter in the soil, in high temperature and high humidity conditions, the disease occurs heavily. A, collection.

Tulip rot Sclerotinia sclerotiorum, the pathogen belongs to semi-known Sclerotinia sclerotiorum, mainly harms seedlings and bulbs. After the seedlings were infected, the leaflets withered as soon as they were pulled out. The bulbs were damaged, the outer scales were soft rotted, and many white silk-like hyphae appeared in the diseased part and the surrounding soil, and then many rapeseed sclerotia were formed. After the formation of many sclerotia, the sclerotia was white at first, and then turned brown.

The law of the disease depends on the transmission of mycelium and sclerotia. The sclerotia overwintered in the soil. Under the condition of high temperature and humidity, the disease occurred seriously.

Prevention and cure

A, when collecting, remove the diseased bulbs.

B. The storeroom should be ventilated and the temperature should be kept below 20 ℃.

 
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