Disease control in cereal in organic farming
2002
Semaskiene, R. (Lithuanian Inst. of Agriculture, Akademija, Dotnuva, Kedainiai reg. (Lithuania). Dept. of Plant Protection)
Biological control, crop rotation, growing of resistant cultivars, etc. can be sound an alternative to chemical control of cereal diseases. It is becoming a critically needed component of plant disease management in organic farming. Investigation of biocontrol agents and active substances was carried out at the Lithuanian Institute of Agriculture. The biological seed treater Trichodermin (Trichoderma lignorum strain istoskij) gave a significant control of seed borne pathogens of winter wheat, winter rye and spring barley on nutrient medium and was more effective that the chemical seed treater Baytan Universal. Simbiont and Kaelsi-Micros (Pseudomonas aureofaciens H16) showed very low efficacy against seed borne pathogens even in laboratory conditions. In the field trials all biological seed treaters did not give significant control of seed and soil borne pathogens and did not have any effect on grain yield.
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