The search for a coherent framework for research and practice of agriculture at crossroads and
rural systems in crises is the guiding theme of the book. In postmodern times classical
integrated pest management with biological control environment-friendly and multifunctional
agriculture revised integrated pest management and agricultural sustainability adaptive
management of agricultural and rural systems and sustainable rural development are unfolding
themes that fade into superordinate topics to finally fall into the realm of sustainability
science. Philosophical reflections strengthen the foundations of ecological knowledge and
broaden the moral basis for decisions. In times of unprecedented uncertainties combined
reductionist and holistic approaches and the adoption of adaptive procedures promise
incremental gains in knowledge and management skills. The emphasis on ethics the reject of
logical positivism the consideration of theory observation and modeling the cautious invoke
of postmodern doctrines and the bringing forth of quantum philosophy promise leaps for leading
rural systems to a sustainable future. System governance and navigation towards the elusive
goal of sustainability should be guided by sustainability assessments and the Renaissance
ideals of reason combined with shared social norms and values. In addition the logic of Dark
Age conflictuality should not be followed. Moreover the education of researchers should
combine traditional disciplines with an in-depth training in mathematics and philosophy.
