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→Points to Consider When Choosing an Ectoparasiticide
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* '''Speed of Kill'''
* '''Speed of Kill'''
* '''Repellenct''' - how readily the product repells parasites from landing or feeding on the host. This can be provided by a either a repellent vapour phase of the drug, or from a contact repellency.
* '''Repellenct''' - how readily the product repells parasites from landing or feeding on the host. This can be provided by a either a repellent vapour phase of the drug, or from a contact repellency.
−* '''Antifeeding effects''' - the combined or singular effects of repellency, quick knock-down and behavioural changes can reduce the oppurtunity for a parasite to bite and feed.
+* '''Antifeeding effects''' - the combined or singular effects of repellency, quick knock-down and behavioural changes can reduce the opportunity for a parasite to bite and feed.
* '''Spectrum of Activity''' - how many different species and stages of the life-cycles does the product act upon.
* '''Spectrum of Activity''' - how many different species and stages of the life-cycles does the product act upon.
* '''Ovicidal Activity''' - The ability of some products to affect the fertility of parasite eggs.
* '''Ovicidal Activity''' - The ability of some products to affect the fertility of parasite eggs.
* '''Larvicidal Activity''' - is the product active on the animal or in the environment. Which one you desire will depend on the parasites involved and also the host species.
* '''Larvicidal Activity''' - is the product active on the animal or in the environment. Which one you desire will depend on the parasites involved and also the host species.
−==Application==
==Application==