Among the various factors responsible for low crop yield in agriculture, weed infestation is the major one. weed is an undesired plant in the farm which shares the nutrient with the desired crop. the use of chemical herbicide for weed control is quite common which offers crop yield enhancement upto (20-25 %) but it poses many challenges. the problem of weed is even getting intense with evolution of different weed flora or new species of weeds (viz. malva parviflora wallr) and herbicide resistance. the continuous use of same group of herbicides year after year by the farmers resulted in evolution of herbicide resistance. the problem becomes even more severe with different time window of weeds (0, 20, 35, 45, 55 and 60 days after weed emergence dawe) for different species of weed and emergence of weeds in 2-3 flushes. it is estimated that 164 kg/hectare pesticides are used in india which poses high costs to the farmers. the cost of applying chemical weedicide solution per hectare is estimated as rs. 3176 per hectare on an average. with farmer’s economic conditions these days due to climate changes, the affordability of chemical solution is questionable. the other problems include environment and water pollution and farmer/consumer health is on stake as well. we offer non-chemical, effective, reliable and safe solution for weed control. the invention disclose the capability of microwave to selectively treat the weed plant by causing its cell to die (necrosis). the unmanned machine e-deweeder (presented product and named as a magical machine by farmers) is powerful enough to walk over the non-uniform terrain profile and hence can traverse the farm with advantage that it doesn’t disturb the crop at any stage of crop production. the machine vision algorithm allows to detect weed among mixed population of weed and crop using morphological and physiology properties. the computation power of the machine allows weed processing over 0.77 hectare/hour in the first time usage of cropping phase. our invention offer crop yield enhancement upto 37 % of crop yield and ensure return on capital investment to the farmers in a year.