000 00425nam a2200109Ia 4500
008 220214s9999 xx 000 0 und d
100 _aRichardson Lloyd T
245 0 _aEffect of insecticides and herbicides applied to soil on the development of plant diseases.1. The seedling disease of barley caused by helminthosporium sativum P.K.&B.
260 _bCanadian Joural of Plant Science
_c1957
300 _a196-202
942 _cRE
999 _c45924
_d45924