Insecticides are substances used to kill insects. They include ovicides and larvicides used against insect eggs and larvae, respectively. Insecticides are used in agriculture, medicine, industry and by consumers.
The aim of ploughing is to scoop up an 8” deep by 12” wide piece of earth and turn it over 180 degrees, burying any crop residue or weeds in the process. This results in loosened soil which can be made into a seed bed.