In this present article, the use of plant water extracts to control the weeds of the rice-wheat cropping system has been discussed. The use of an alternative method to control weed infestation in field conditions is much needed in recent times to minimize the use of herbicides or weedicides. In the past decade or two weeds are getting vigorous in the field condition which is having a great impact in the total loss of the farmer. It can vary from 10-50 % loss in the standing crop. As a result, more use of herbicides and weedicides are being in the run. Weeds are getting resistant to chemicals which can create a great problem in the field of agriculture in the future times. So, an alternative method is necessary. By using the plant water extracts with the combination of herbicides, we can easily control the weeds in the field condition and can also reduce the use of herbicides. So in lab conditions, different combinations of plant extracts have been checked for the best combination to control in the Rice-wheat combination. Out of so many concentrations in the lab condition, the best results were 5% of Eucalyptus plant extract, 10 % of Neem plant extract, and 25 % of Guava plant extract.