As for its relation to St. Patrick, it is believed that St. Patrick was generally fond of clovers, regardless of the number of leaves. { It can measure as little as 0.25 mm across. 2. So, how do these two words come together? Approximations in other notations. Clover mites tend to enter houses when their food supply dries up (or is removed), which is why they tend to be more active in the Fall. For this same reason, courageous children who wanted to see fairies and other supernatural beings wore four-leaf clovers as jewelry. Each female lays an average of 70 eggs in the spring when the weather warms up, before it gets hot in the summer, to lay dormant over the winter. // -->