Waste bank have the task of reducing waste. Most of the waste produced is plastic waste. The amount of plastic waste that was recorded was 13.39% of the 38.05% of inorganic waste. One of the producers of plastic waste is households in the form of plastic packaging that does not sell well. One of the efforts to reduce packaging plastic is by reusing it as material products to make creative products. Product material 100x75 cm wide, requires 1500 grams of waste. This material is used to make creative fashion products (bags) as an environment-based business including waste. This business is ecopreneurship developed by the Sejahtera Waste Bank, Joyotakan Village, Surakarta City. The purpose of the Community Partnership Program (PKM) is the development of ecopreneurship, by reusing household plastic waste, especially plastic packaging. The solution offered to achieve the goal is to provide training and mentoring. The method used to answer the solution is the observation method, the interview method, the test method and the mentoring method. The things that are done to realize the goals are observation, to get the situation and conditions, interviews with key figures, to get information and agreement on solutions to realize the goals. Posttest-pretest is carried out at each training and provides assistance to realize and develop ecopreneurship. The results of PKM in the form of providing training, have the effect of increasing knowledge on participants. Providing assistance gives the Sejahtera Waste Bank confidence to do business. This business is related to the reuse of household plastic waste as the basic material for fashion creative products.

The assistance of the dairy farmers community in implementing the use of herbal probiotics as an innovation program requires communication. This program is a behavior change program in dairy farming by farmers. The communication needed is intensive between companion and community. This is an interaction between the two because of cooperation. Collaboration because of the same interest, so it must be communicated. It also requires communication that can lead to collective action, because there is participation in the process of change / development. Communication is a feature of development communication. Therefore, the aim of the study is to explain development communication in the assistance of the community of dairy farmers. The method used is qualitative research methods. The study was conducted in the village of Nogosaren, Getasan sub-district, Semarang Regency. The sampling technique uses purposive sampling. The population is 932 breeders, which are used to attract informants as research samples. The technique of collecting data using in-depth interviews. The results of the study indicate that the interaction between companion and community requires a centralized model of communication to collaborate. There are three main elements in centralized communication, which are contained in mentoring activities. Mentoring activities about program socialization are elements of physical reality. Mentoring activities on identifying community problems, awareness of farmers to improve livestock cultivation, application of herbal probiotic innovations including supporting elements of use and how to procure supporting elements, are elements of psychological reality. Mentoring activities on community agreements in the implementation of procurement of support for the use and use of herbal probiotics are an element of social reality. In social reality, there is a community's interest in engaging in activities that are not separated from their basic needs, namely, increasing milk yields to increase income. Discussion of research results; development communication, which is communication for change, is needed in every assistance. All realities which are the main elements are used to convey information needed by the community, educational efforts for the community, increasing knowledge and increasing skills to be able to implement the program. The four stages carried out by the companion contained communication. The conclusion of the study is development communication or communication for change using a centralized communication model. This model colors the entire farmer community assistance activities, because in the mentoring steps there are elements of a centralized communication model, namely physical, psychological and social reality.