The category of parasitism in which there is a high frequency of parasitism, but a low injury from parasitism. For example, fleas parasitise zebras. They parasitise every zebra in the herd, so the frequency of parasitism is maximal. But they do very little harm to each individual zebra, so the injury from parasitism is minimal. See also: Predator-prey relationship. Hot water treatment
A treatment for seeds that are infected. With careful control of the temperature, it is possible to kill the pathogen without killing the seed. Loose smuts of cereals can be controlled in this way.
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