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The scientific method of growing crops is called agriculture. The techniques of agriculture involvesoil preparation, sowing, manuring, irrigation, harvesting, and storage. Fertilizers, water, and insecticides are given to the plants through irrigation.

Modern agronomy, genetically modified plants, and agrochemicals increase crop yield.

The chemicals that harm or repel the insects or pathogens and attack the crops are called insecticides or pesticides.Malathion and boric acid are two examples of insecticides.

General insecticides are one of the agrochemicals, which are used for all types of insects or pests. It is not specified for particular pathogens.

The chemicals present in the insecticides cause soil and water pollution. It decreases the fertility of the soil. Rain and water irrigation depletes the soil; they reach the nearest water source. The contamination of toxic insecticides to water sources becomes hazardous to every organism.

The quality and compositions of the soil alter from the addition of insecticides to the field.Agrochemicals cause salinization of soil, and beneficial microorganisms and animals such as earthworm populations decrease the soil.

The toxic chemicals sometimes remain in the food crops even after washing. It causes health problems in humans and livestock. Irritation of the eyes, gastrointestinal problems, nausea, dizziness, skin burning, and food poisoning are symptoms of harmful insecticides in food crops.