The control effects of agricultural antibiotic 702( ag-antibiotic 702) on rice leaf blast and panicle blast were evaluated in field trials. With ag-antibiotic70
[Objectives] The paper was to study effects of different microbial agents on occurrence of tobacco bacterial wilt. [Methods] Antagonistic strains against Ralsto
The damage status of L. invasa on different Eucalyptus varieties( clones) were surveyed in the field,and effects of Eucalyptus varieties on fitness,development