Agricultural Science·Plant production · NSSCO 3.3.1
Crop pests & their control
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You plant your maize or mahangu, care for it, and one morning the leaves are full of holes or the stems are dying — a crop pest has struck. In this lesson we meet the four types of pest by the way they feed, then learn the three ways to fight them — chemical, biological and cultural — and how a wise farmer combines all three into Integrated Pest Management for safe, lasting control.
What you'll learn in this lesson
By the end you should be able to (NSSCO Agricultural Science 3.3.1):
- Describe the four types of pest and the nature of the damage they cause: biting and chewing (e.g. grasshoppers, locusts, termites, leaf miners, army worms, beetles); piercing and sucking (e.g. aphids, Bagrada bugs, mealy bugs, scale insects); boring (e.g. weevils, stalk borer, American bollworm); and soil pests (nematodes/eelworms, cutworms)
- Describe chemical, biological and cultural methods of controlling these pests
- Describe Integrated Pest Management (IPM) as an ecosystem-based strategy for long-term prevention of pests or their damage through a combination of techniques
- Discuss the advantages and disadvantages of chemical, biological and cultural methods of pest control
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Miss Olivia and Mike talk through the whole topic — with the figure and working drawn live.