Page 151 - Agriculture_Form_Three

Agriculture for Secondary Schools

Table 6.2: External parasites types, effects and their control measures.
Parasite Host Disease/condition Control measure
caused
Ticks Mainly attack • Tick borne diseases • Hand picking
cattle, sheep and e.g., East Coast • Planned burning of
goats Fever (ECF), pastures
Babesiosis, and • Rotational grazing
anaplasmosis • Ploughing of pastures
• Anaemia by • Routine dipping or
sucking blood spraying with acaricide
• Irritation • Use of predator birds
• Injury to the skin/ • Hand dressing by
wounds pyegrease
• Wounds which can • Indoor rearing
act as routes for • Fencing of pasture land
infection

Tsetse Cattle, sheep, • Trypanosomiasis • Destroy their breeding
fly goats, pigs, disease places by burning, bush
donkeys and • Anaemia by clearing, spraying with
horses sucking blood chemicals
• Injury to the skin • Sterilise and release
• Unthriftness sterile males
• Trapping them by using
flytraps

Flea Poultry and pet • Irritation • Dipping with dip wash
animals • Anaemia • Dusting with appropriate
• Scabby patches on pesticides
the skin • Cleanliness
• Loss of condition

Ked Sheep and goats • They suck blood • Use injectable parasitic
• Causes melophagias drugs
disease • Dipping/spraying with
anti-parasitic drugs

Mite Cattle, sheep and • Mange • Dipping in dip wash
goats, poultry, • Irritation • Hand spraying with dip
pet animals and • Fowl pox and wash
pigs spirochaetosis • Hand washing with
• Anaemia by acaricides
sucking blood

Student’s Book Form Three
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