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Classification of Pesticides:
Pesticides are classified on the basis of:
Mode of Entry
Stomach - ingested by the pest together with the crop materials.
Contact - absorbed through the body tissues.
Fumigants - through the breathing mechanism. Systemic - translocated to all parts.
Mode of Action
Respiratory poisons - interfere with breathing mechanisms.
Coagulants - cause the blood of the pest to coagulate.
Neurotoxins - act on the nervous system.
Protoplasmic poisons - cause the cells to disintegrate.
Target Pests
Insecticides - kill insect pests Molluscicides - kill snails and slugs.
Rodenticides - kill rodents.
Nematocides - kill nematodes.
Formulation .
Dusts, granules and powders Emulsifiable concentrates.
Miscible liquids.
Wettable powders. Fumigants.
Kavungya answered the question on April 26, 2019 at 08:59
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