Discuss six different ways in which insecticides work to control insects
What will be an ideal response?
Six different ways in which insecticides work to control insects include:
• Stomach poisons, which kill insects that eat part of the plant
• Contact poisons, which kill insects that are hit by or otherwise touch the poison
• Systemic poisons that affect the entire plant and are effective in the control of insects
with either chewing or sucking mouth parts
• Fumigants, which are actually contact poisons applied in gaseous form
• Repellents, which generally do not kill insects but drive them away before they
attack the plant
• Attractants and pheromones, which lure insects to their deaths
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