(1) Most drug resistant bacteria lost out to their non-resistant relatives when grown in the absence of drugs.

(2) Monsanto's soy has been genetically modified to confer resistance to an herbicide, glyphosate, which is sprayed on the crop to kill off non-resistant weeds.

(3) Multidrug-resistant (MDR) typhoid, for example, is associated with greater clinical severity of illness and more complications than the non-resistant form of the disease.

(4) Mutations that allow the bacteria that cause tuberculosis to resist key drugs do not necessarily limit their ability to compete with non-resistant relatives as has been thought.

(5) The aim of this research is to extract and utilize secretion of phloem of Tilia mongolica that use them to increase the zoophobous ability and phylactic power of non-resistant tree species.