ELE AGRO – 3510


Credit: 3(2+1)


Introduction to weeds, characteristics of weeds their harmful and beneficial effects on ecosystem. Classification, reproduction and dissemination of weeds. Herbicide classification, concept of  adjuvant, surfactant, herbicide formulation and their use. Introduction to mode of action of  herbicides and selectivity. Allelopathy and its application for weed management. Bio-herbicides and their application in  agriculture.  Concept of herbicide mixture and utility  in agriculture.  Herbicide compatibility with agro-chemicals and  their application. Integration  of herbicides with non chemical methods of weed management. Herbicide Resistance  and its management.


Techniques of weed  preservation. Weed identification and their losses study. Biology of important weeds. Study of herbicide formulations and mixture  of herbicide. Herbicide and agro-chemicals study. Shift of weed flora study in long term experiments. Study of methods of herbicide  application, spraying equipment’s. Calculations of herbicide doses and weed control efficiency and weed index.

Practical (Experiments):

1-2) Identification of weeds

3) Techniques of weed preservation

4) Study of losses caused by weeds

5-6) Biology of important weeds

7) Study of herbicide formulation and herbicide mixtures

8) Study of herbicide in relation to Agrochemicals

9) Phyto-toxicity symptoms  on crops and its measurement

10) Methods of herbicide application

11-12) Herbicides application equipments and their calibration

13) Calculation of herbicide dose

14) Computation of different weed indices

15) Visit to weed management experiments