POTENTIAL MICROBA IN THE CONTROL OF PLANT PATHOGEN BIOLOGICALLY

The Green Revolution Movement in the 1970s, which prioritized the use of chemical pesticides and fertilizers, although temporarily increasing agricultural production, in the long run caused damage to the physical, chemical and biological properties of the soil, which ultimately led to the expansion of critical and marginal land in Indonesia. The green revolution has succeeded in encouraging agricultural production through various inorganic inputs in crop cultivation. Various types of pesticides have been used to control pests and various types of chemical fertilizers have also been produced to meet the nutritional needs of plants. After that many problems that arise in agriculture such as soil pH becomes down so that many nutrients are not absorbed by plants even if given in large quantities. Pest becomes difficult to control due to the emergence of pest resistance so that there is a problem of resurgence, secondary pests become malignant, the loss of natural enemies so that as a whole forces our farmers to increase the dose of pesticides which ultimately cause various environmental problems. Since 1980 the awareness arose due to the bad, began various institutions trying to re-calculate the power of nature which will actually benefit us without damaging the environment. Some biological agents Gliocladium, Trichoderma spp., Pseudomoas fluorescens, Streptomyces sp. has been explored so that these microbes can work to help control various diseases in plants such as sprout fallows, clubroot diseases and so on.
Various information on biological control must be disseminated to all parties who do not yet know the benefits of biological efforts in agriculture. Farmers, students, and other practitioners who do not believe in the benefits of this biological effort need to get a good picture by reading this book so that motor changes can occur and the consequences are carried out in daily life. Farmers themselves must now pay attention to how to produce healthy agriculture and in accordance with import requirements of other countries that have begun to become aware of the dangers of pesticides. If you do not heed the way of environmentally friendly cultivation, our farmers' products will not sell in the market. Therefore this book will become an important guide in increasing farmers' knowledge in seeking environmentally friendly control of plant pathogens through the application of biological methods.