mealybug


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mealybug,

common name for certain unarmored scale insectsscale insect,
common name for members of a highly modified group of insects belonging to several families of the superfamily Coccoidea. Scales possess antennae and are characterized by reduced legs. Only the males have wings; females are always wingless.
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 that exude a granular white secretion, giving them a mealy appearance. Many are common greenhouse and crop pests. Adult females are wingless, with oval, segmented bodies and well-developed legs. The females and young feed on various parts of plants with their sucking mouthparts. Adult males have no mouthparts and do not feed. In egg-laying species the female produces several hundred eggs in a mass covered with waxy threads. In other species the young are born alive. The most serious pests are mealybugs that feed on citrus; other species damage sugarcane, grapes, pineapple, coffee trees, ferns, and orchids. Mealybugs 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 Homoptera, family Pseudococcidae.

mealybug

[′mē·lē‚bəg]
(invertebrate zoology)
Any of various scale insects of the family Pseudococcidae which have a powdery substance covering the dorsal surface; all are serious plant pests.
References in periodicals archive ?
Mealybug species of the genus Rhizoecus Kunckel d'Herculais, 1878 (Hemiptera: Rhizoecidae) reported from Colombia.
Mealybug perpetuated on ornamental plants in offices, parks and residential areas in addition to weeds on waste lands and road sides, from where it shifted to cotton and other crops.
The Lodi Winegrape Commission's (LWC) recently formed the Mealybug Biocontrol Research Focus Group, which held a field day Aug.
Cotton mealybug, Hyperparasitism, Cytochrome c oxidase I, Internal transcribed spacer 1, Biological control.
In order to study the host-plant preference of mealybug toward the selected plant species, healthy twigs of these plants with at least five tender leaves, those were neither exposed to any pesticide applications nor had mealybug infestation, were picked and brought in laboratory.
Of the many pseudococddeos parasites, Maconellicoccus hirsutus Green, 1908 (HAYAT, 2006), the pink hibiscus mealybug, was most recently detected in Brazil (MARSARO JR, et al.
Another interesting finding, says Van Rensburg, is that mealybugs are spread mainly by people and tools, not by wind and birds as thought.
Among important insect pests of this culture, cassava root mealybug Dysmicoccus sp.
Cryptolaemus, an insect of the ladybug family, is a natural predator of the Mealybug.
If you have a mealybug problem in your greenhouse or conservatory, you can spray with either chemical bug killers or organic fatty acid based sprays.
An experimental study of morphological variation in mealybugs (Homoptera: Coccoidea: Pseudococcidae).