栃木県におけるナシ黒星病菌のDMI剤に対する感受性分布
2000 年 2000 巻 47 号 p. 83-84
詳細
2000 年 2000 巻 47 号 p. 83-84
Monoconidial isolates of Venturia nashicola were collected in 1999 from ten pear orchards in Tochigi Prefecture and their susceptibility to the DMI fungicide fenarimol was determined by mycelial growth tests. Results on PDA plates showed that DMI-resistant isolates occured at 5.9% on average and suggested that field performance of this fungicide is still maintained in Tochigi Prefecture.
