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.
Shapiro-Ilan and Cottrell found that soil applications of the nematode Steinernema riobrave can suppress plum curculio larvae by 78 to 100 percent.
Curculios that attack the young fruits and shoots of walnut and hickory.
Pecan weevil Curculio caryae control by dielectric heating.
The big three that affect the apples directly are the codling moth, the apple maggot, a fly, and the plum curculio, a beetle.
A telltale, crescent-shaped blemish on apples, apricots, cherries, peaches, pears, and plums is all it takes to signal an invasion by plum curculio weevils, Conotrachelus nenuphar.
Kaolin clay based products have been used to control plum curculio, Conotraehelus nenuphar (Herbst) (Coleoptera: Curculionidae), in orchards (Wright et al.
Curculio, a small black or brown weevil, is difficult to control, and if populations get large, you can lose the majority of your crop.
In studies around the country, codling moths, apple maggots, plum curculio, leafhoppers, Japanese beetles, rose chafer, thrips, and rust mites--not to mention pear psylla--have fled whitewashed crops in search of greener pastures.
Plum curculio begin to lay when the fruit is about pea-size, and leave a distinctive crescent-shaped slit where their eggs are laid.
We also had high suppression rates for the plum curculio and codling moth but haven't yet reached economic levels of control," Puterka says.
Plum curculio is currently a serious pest of peaches in Alabama and much of the southeastern U.