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The black vine weevil (Otiorhynchus sulcatus) is an insect native to Europe but common in North America as well. It is a pest of many garden plants. It is a pest of many garden plants. Overview
Adult weevils from an extended diapause, emerge, on the average, 1–10 days before those with a simple diapause. The emergence of adult weevils occur always from mid-August to early October. The emerged adults live in the canopy of the chestnut tree. [1] When a summer is dry, some adults cannot emerge because of the hardness of the soil.
Otiorhynchus (sometimes misspelled as Otiorrhynchus) is a large genus of weevils in the family Curculionidae.Many species of the genus, particularly the black vine weevil (O. sulcatus) and the strawberry root weevil (O. ovatus), are important pests, both as larvae and as adults.
Adult weevils begin emerging in March but most of the new adult weevils emerge in May (small circular escape holes are sometimes noticed on infested stems). The new weevils apparently aestivate during the summer and become active as the weather cools down in the fall when they infest stressed trees, feed and mate. [4] [5]
The Curculionidae are a family of weevils, commonly called snout beetles or true weevils. They are one of the largest animal families with 6,800 genera and 83,000 [ 1 ] species described worldwide. They are the sister group to the family Brentidae .
Most weevils have the ability to fly (including pest species such as the rice weevil), [2] [3] though a significant number are flightless, such as the genus Otiorhynchus, and others can jump. One species of weevil, Austroplatypus incompertus, exhibits eusociality, one of the few insects outside the Hymenoptera and the Isoptera to do so ...
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. The adult female weevil bores a tiny hole in the immature nut to lay her eggs, which then hatch into ...
Adults overwinter in leaf litter and emerge early in spring to feed on leaves and mate. [4] Female R. latipes lay eggs preferentially on the compact flowering head of the plant, a tender location that allows larvae to easily bore into the stem. After 3-5 days, larvae emerge and bore into the stem to feed and develop.