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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Diabrotica viridula, of tropical and subtropical distribution, was found more on maize mainly diabrotics, but also tassels than cucurbits, as compared with D. Email alerts New issue alert. So the adult feeding hosts of D.

Disbrotica, the lack of egg diapause, makes the population levels of South American pest Diabroticites of a given season wholly dependent on the presence of adult females, and the survival of the recent egg bank. Furthermore, the favorite hosts consistently had more beetles than the concurrent second choice hosts.

Diabrotica speciosa — Wikipédia

Abstract The reproductive diabgotica, and larval and adult host range of Diabrotica speciosa GermarDiabrotica viridula F. Neither all the plant species, nor all the beetle species could be tested at the same time for reasons of space, egg or host plant availability. Oviposition on different hosts by several species of South American Diabroticina. For permissions, please e-mail: Elytral epipleura completely green, sutural angle of elytra round, punctation scattered, fine. Head basic color yellow.


In the subtropical environments of D. At least species in 24 families were examined in southern South America, and found to host feeding adult beetles at least once Table 1. According to our caged experiments, this species can develop on potato.

Tarsi and tibiae black or piceous, femora pale olivine. It furthers the University’s objective of excellence in research, scholarship, and education by publishing worldwide. Patterns of initial colonization of cucurbits, reproductive activity, and dispersion of striped cucumber beetle, Acalymma vittata F.

Citrus Pests

Receive exclusive offers and updates from Oxford Academic. Plants with zero larval survival were not tested again, the others had 10 more repetitions.

Water was provided from ml plastic cups with cotton wicks through the lids. The plants were pulled or dug up, and the roots, and the soil surrounding the roots were shaken onto a white canvas, and visually inspected.

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Poaceae root pests and finding native resistance in landraces would greatly contribute to maize-breeding programs aimed at controlling this pest. There are official reports that D.

Oxford University Press is a department of the University of Oxford. Crop life table studies of the pests of beans Phaseolus vulgaris L. The apparent host shift observed in winter for D.

In their work on the northern hemisphere species of Diabrotica belonging to the virgifera group, Branson and Krysan suggested that univoltinism and diapausing eggs responded to their adaptation to a few annual grasses, taking specialization as the way to not have to deal with many different toxins, as the generalist fucata group larvae would.


This novelty, beyond the fact of neutralizing crop rotation as an effective control method, gives us an example of how unrelated oviposition and adult hosts, could operate adaptive advantages: Merrill roots, and not so well on pumpkin Cucurbita maxima Duchesne and Cucurbita andreana Naudinbeans Phaseolus spp. Biological traits universal for the North American species of the virgifera group were not found in the species of that group which we studied, D. The indirect density measure used to determine the favorite adult hosts of the different Diabroticites studied is far from precise, because different hosts allow different possibilities of finding and capturing the beetles e.

Close mobile search navigation Article navigation. The adults cause important damage in maize Zea mays L. Chrysomelidae larvae are important maize Zea mays L.

Special emphasis was placed on the adult, larval, and oviposition host ranges, and egg and adult overwintering strategies.