Preferred Scientific Name; Diabrotica speciosa. Preferred Common Name; cucurbit beetle. Taxonomic Tree; Domain: Eukaryota; Kingdom. Diabrotica speciosa speciosa Germar as Galeruca prasina Dejean (replacement name for speciosa Germar ). Diabrotica speciosa (Germar) and Diabrotica viridula F. (Coleoptera: Chrysomelidae) are the two most abundant species of the genus in South America, and.

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Five colonies of D. However, the Acalymma spp. Eggs are oviposited on the soil close to a host plant.

Diabrotica speciosa — Wikipédia

Please consider upgrading your browser to the latest version or installing a new browser. Development time is longer and more irregular, and percent emergence lower, showing a general impaired development on this crop.

Diabrotica viridula, of tropical and subtropical distribution, was found more on maize mainly silks, but also tassels than cucurbits, as compared with D.

Survey of insects associated with sweet potato, Ipomoea batatas, using water traps, in Ituporanga, Santa Catarina. Domiciano NL; Santos Speciisa, The beetles used for observations, and to establish laboratory colonies were collected with sweep nets, funnels, and aspirators on at least 20 cultivated and wild host plants: Close mobile search navigation Article navigation.


Citrus Pests

Diapause in the nearctic species of the virgifera group of Diabrotica: Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report. Wild and cultured cucurbits, grain crops, pasture crops, and wild spefiosa that are common hosts of adult Diabroticites, were sampled from the year to the yearto verify larval hosts in the wild.

Chrysomelidae to corn and soybean plants in a walk-in wind tunnel. Although multivoltinism and lack of egg diapause was expected for D. Out of nineteen genotypes, eight were selected according to their resistance levels for an additional rearing study evaluating oviposition and fecundity.

Colonia Tovar, Venezuela; type depository: Feeding and oviposition behavior and life cycle strategies of Diabrotica: Roel AR; Zatarin M, Of these, the genus Diabrotica Chevrolat includes the greatest number of pest species, including some of the most important row crop and vegetable pests of the Sepciosa, be it the foliage, fruit- or flower-feeding adults, or the root-feeding larvae.

However, because not all the hosts were present at each collection site, the average proportions spefiosa not necessarily sum 1. Another group within the genus, the virgifera group, includes the northern Diabrotica barberi Smith and Lawrencewestern Diabrotica virgifera virgifera LeConteand Mexican Diabrotica v.

The proportion of beetles of each species per host was calculated, and averaged for every site per season.


Free flight of western corn rootworm Coleoptera: This pattern held during fall, although alfalfa and soybeans were speciosz found to host a large eiabrotica of beetles as well. UnitAPO Argentina — Poaceae root pests and finding native resistance in landraces would greatly contribute to maize-breeding programs aimed at controlling this pest. Chrysomelidae larvae are important maize Zea mays L. This, however, would agree with the more northerly known distribution of the species.

The favorite adult hosts of D. Diabrotica limitata, was consistently found on pumpkin and maize silks, and only maize silks in winter. Scutellum piceous or black. So the adult feeding hosts of D. Oviposition preferences roughly paralleled larval suitability, but there was a clear preference for cucurbits as adult food, when available; pigweed Amaranthus quitensis Kunthsunflower Helianthus annuus L.

Systematics of the virgifera species group of Diabrotica Coleoptera: The cucurbit beetle is reported to semi-persistently vector Passionfruit yellow mosaic virusMimosa mosaic virusand Purple granadilla mosaic virus.