The economic damage accompanying the fire blight is expressed both in loss of crops and costs associated with uprooting infected trees restoration fruit plantations.  Pear characterized highest rates susceptibility to blight. Development genetically resistant cultivars one crucial aspects managing blight, which would allow foregoing current economically or ecologically unsound methods such...

many parasitic helminthes of veterinary importance have genetic features that favor development of anthelmintic resistance, this becoming a major worldwide constrain in livestock production. the de-velopment of anthelmintic resistance poses a large threat to future production and welfare of grazing animals. development of variable degrees of resistance among different species of gastrointestina...