engleski

Abutilon theophrasti Medik. - a new host for Sclerotinia sclerotiorum (Lib.) de Bary in Croatia

Velvetleaf (Abutilon theophrasti Medik.), newly introduced and very aggressive weed in arable crops in Croatia, is found to be the host of Sclerotinia sclerotiorum. Symptoms on infected plants occurred on basal stem parts as well as on upper plant parts, including fruits and seeds. That S. sclerotiorum is cause of velvetleaf plants decay was proved by artificial infections. S. sclerotiorum is very important parasite of many crops, especially sunflower. In preliminary trials S. sclerotiorum isolate from velvetleaf was highly pathogenic for sunflower. Occurrence of white rot in velvetleaf can increase inoculum density of S. sclerotiorum in soil.

Velvetleaf; S. sclerotiorum; alternative host

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