Technical Abstract: The pecan weevil usually is the most-damaging of the late season pecan insect pests. Direct damage to the marketable portion of the crop can be quantified allowing for a reasonable estimate of the economic loss incurred. However, the pecan weevil can also have lingering effects upon pecan production in future seasons. This is accomplished via management decisions by the grower which can alleviate or exacerbate pest problems. A light crop that does not justify the cost of weevil management during the current year, may cost even more (e.g., more damage and/or more applications) when most of those weevils emerge to attack the crop two years later. Weevil emergence can begin in early to mid-July but most weevils will emerge in August and September and emergence can be greatly affected by soil moisture. Dry soils either prevent or slow the emergence of adult weevils. Rains following dry conditions serve to synchronize weevil emergence allowing for a well-timed and very effective insecticide application.