Nut-pest
Guides
Acrobasis
Acrobasis is a genus of small moths in the family Pyralidae, subfamily Phycitinae. Species in this genus are primarily known as pests of nut and fruit crops, with several economically significant species including the pecan nut casebearer (A. nuxvorella) and species affecting chokeberry, walnut, and hickory. Larvae typically bore into developing nuts or fruits, causing direct damage to yield. The genus has a Holarctic distribution with records from North America and Europe.
Curculio caryae
pecan weevil
Curculio caryae, the pecan weevil, is a specialized nut-feeding weevil native to North America and a major economic pest of pecan (Carya illinoinensis) and hickory (Carya species) production. Adults emerge from soil in August and September, feed on developing nuts, and females use their elongated proboscis to drill through shells and deposit eggs into kernels. Larvae develop inside nuts for approximately 42 days before emerging through clean, round exit holes and burrowing into soil to pupate. The life cycle typically spans two years, though approximately 10% of individuals require three years. The species has been observed to occasionally infest Persian walnut (Juglans regia).
Curculio uniformis
Filbert Weevil
Curculio uniformis, commonly known as the filbert weevil, is a species of true weevil in the family Curculionidae. The species is recognized as a nut-feeding specialist associated with filberts (hazelnuts). Like other members of the genus Curculio, it possesses the characteristic elongated rostrum used for drilling into nuts to oviposit. The species is recorded from North America, including British Columbia, Canada.