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玉米小斑病菌的寄主范围,国内外学者进行过不少的研究,不仅研究结果不致,而且主要局限于禾本科(Gramioeae)植物,有过肯定结论?
The host range of P. xylostella has been studied by many scholars at home and abroad. Not only can the results of the study not be conclusive, but it is mainly confined to Gramioeae plants. Has the conclusion been affirmed?