Plant health management is very important field now a days because of the increasing stress on the agricultural land due to increase in population, infertility of land, and industrialization. So, tacking of these problems adaptation of the new generation of technologies very important, that is why every inch of the corner should be utilised. It's a fact that due to plant diseases attack could make agriculture suffer more than 10 % of the production. Now a days different modern technologies are there to solve the plant diseases which ultimately increases the production. New generation technologies are used currently are PCR based, different agro- Applications, remote sensing, drones, Imaging and Spectroscopic Approaches.