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Conotrachelus retentus, the black walnut curculio, is a species of true weevil in the beetle family Curculionidae. It is found in North America. [1] [2] [3] Larvae feed on the developing walnut, while adults feed on foliage. Adult weevils rarely leave the tree they were born on. [4]
Thousand cankers is a recently described disease and its involvement in tree mortality apparently is also recent. The first published note involving black walnut die-offs that likely can be attributed to TCD occurred in the Espanola Valley of northern New Mexico in 2001.
Curculio larva emerging from Chinese chestnut acorn Curculio sayi. Curculio is a genus of weevils belonging the family Curculionidae and subfamily Curculioninae. [1] [2] Members of the genus are commonly referred to as acorn weevils or nut weevils as they infest the seeds of trees such as oaks and hickories.
Curculio elephas Although pesticide resistance hasn't historically been an issue with these insects, recently a mutation was discovered in association with the voltage-gated sodium channel in the species Sitophilus zeamais , indicating there is a lot to learn about how these insects adapt to changing environments.
Tychius Curculio, larva Curculio sayi. The beetle subfamily Curculioninae is part of the weevil family Curculionidae.It contains over 23,500 described species in 2,200 genera, and is therefore the largest weevil subfamily.
Curculio nucum, the nut weevil, is a medium-sized beetle, with an especially elongated snout, characteristic of the Curculionini tribe of the weevil family (Curculionidae). Its larvae develop in hazel nuts Corylus avellana, being a serious pest in hazelnut orchards. It occurs in most of Europe, from south Sweden, Finland and Great Britain to ...
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Curculio caryae G. H. Horn , 1873 The pecan weevil , Curculio caryae ( Coleoptera : Curculionidae ) is an obligate feeder on the nuts of North American hickories and pecans ( Carya species), most widely recognized as an economically important pest of the pecan, Carya illinoinensis ( Fagales : Juglandaceae ).