curculio

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curculio

(kərkyo͞o`lēō), name applied to various weevilsweevil,
common name for certain beetles of the snout beetle family (Curculionidae), small, usually dull-colored, hard-bodied insects. The mouthparts of snout beetles are modified into down-curved snouts, or beaks, adapted for boring into plants; the jaws are at the end of the
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 (members of the snout beetle family, or Curculionidae), especially those that attack fruit. The term is sometimes limited to the acorn and nut weevils of the genus Curculio, characterized by extremely long beaks adapted for boring. The females, whose beaks may be twice as long as their bodies, lay their eggs in holes bored in the nuts. The larvae feed on the nuts, later pupating (see insectinsect,
invertebrate animal of the class Insecta of the phylum Arthropoda. Like other arthropods, an insect has a hard outer covering, or exoskeleton, a segmented body, and jointed legs. Adult insects typically have wings and are the only flying invertebrates.
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) in the soil. The plum curculio, Conotrachelus nenuphar, is a serious pest of peach, plum, cherry, and apple, causing deformed and prematurely falling fruit. In spring the adults leave their winter shelter in piles of rubbish and fly to blossoming or early fruiting trees, where they feed for a week or more before mating. Eggs are laid in the fruit in slits made by the female, and the larvae feed for two to three weeks before pupating in the ground. Curculios are classified in the phylum ArthropodaArthropoda
[Gr.,=jointed feet], largest and most diverse animal phylum. The arthropods include crustaceans, insects, centipedes, millipedes, spiders, scorpions, and the extinct trilobites.
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, class Insecta, order Coleoptera, family Curculionidae.
References in periodicals archive ?
Proper timing is crucial to decreasing the risk of cowpea curculio infestation.
Cowpea curculio adults are known to overwinter on weeds, such as purple cudweed or heartwing sorrel, before moving into Southern peas by May.
The cowpea curculio is typically found in the southern part of the United States.
The 2007 study was done in an unmanaged peach orchard that had not received any insecticide or fungicide application since its establishment in 1985, and high plum curculio populations had historically been recorded in the orchard.
All treatments were established on autoclaved field soil in order to eliminate the effects of predators of plum curculio such as ground and tiger beetles, ants and spiders (Jenkins et al.
Twenty newly emerged, laboratory-reared fourth-instar larvae of plum curculio (~15-18 mg each), were introduced into each PVC pipe (plot).
Significant differences were recorded in the emergence of adult plum curculio from the different weed management treatments in the unmanaged peach orchard in 2007 ([F.
Given these variables, we hypothesized that the type of weed management practices used by peach growers would impact the development of the soil dwelling immature stages of plum curculio and ultimately adult emergence from the soil.
Field efficacy trials against plum curculio often have variable mortality rates (Shapiro-Ilan et al.
nenuphar, by (1) quantifying the extent of plum curculio mortality attributable to predation and parasitism in northern Florida and middle Georgia, and (2) assaying biological control organisms, such as the fungus, Beauvaria bassiana (Bals.
In May 2004 we exposed 20 virgin female and 20 virgin male plum curculio to 360 green thinning apples (Red Delicious variety) for 2 weeks.
We monitored plum curculio larvae as they burrowed into the soil, recording any predation we observed.