A second generation, however, has been observed in some locations. Head weevil larvae. Collect on sunny days when weevils are active on the upper portions of the plant. Weevils are collected by beating the upper portion of the plant with a dowel rod while holding a sweep-net or some other device beneath the plant. Leather gloves are required for holding plants.
Weevils play dead and drop into the sweep-net.
Move from one plant to another repeating this process. Occasionally tap on the net to keep weevils from escaping. After collecting weevils, sort through the debris and separate weevils from other insects and spiders. Place 500 adult weevils in cardboard containers with tight fitting lids. Do not use plastic cartons because of moisture accumulation and resulting weevil mortality.