Field experiments were conducted with 6 selected nematicides for pepper root - knotnematode.
研究选用了6种常用杀线剂对胡椒根结线虫病进行了田间药效试验。
2
Those diseases which had been formerly found but not identified in detail, such as tobacco Blank death, Black root rot, Wild fire, Angular spot and root-knotnematode were studied more thoroughly.