The pecan weevil requires two to three years to complete one generation. Eggs of the pecan weevil are deposited in a pecan when the fruit is nearly hardened and contain well-developed kernels (dough state).
Pecan Weevils. The pecan weevil occurs only in the northern half of the state. It becomes a pest in mid- to late August. The larvae of the weevil (often called "redheads") eat the nutmeat and bore a round exit hole in the pecan shell.
 See also: Water, Stage, Light, Larvae, Larva
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