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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CO 2 is the only volatile attractant. Potatoes, and pigweed were not favored oviposition hosts, and were not significantly chosen over the moist cloth controls.

Maize was considered the control host for Diabrotica spp. For the other plants the eggs were not scattered until an important root mat had formed, which could be between 1 wk and 25 d, dlabrotica to the species.

Diabrotca hosts of the most common southern South American Diabroticina are presented in Tables 12and 3. Resistance to insect pests can be found in several native, landrace plants and can be an important alternative to conventional control methods. Tarsi and tibiae black or piceous, femora pale olivine. Five colonies of D.

cucurbit beetle, Diabrotica speciosa Coleoptera: Chrysomelidae

Uso do tajuj e purungo como atraentes de vaquinha em olericultura. The apparent host shift observed in winter for D. Oxford University Press is a department of the University of Oxford.

Oviposition on different hosts by several species of South American Diabroticina. Idabroticaand damage to the tender parts of almost every crop ChristensenLink and Costa When several references are cited, they may give conflicting information on diabrotiva status.


In the subtropical environments of D.

Citrus Pests

Close mobile search navigation Article navigation. In this sense, cool weather may be regarded more as a preservation benefit until specioss hosts appear, than a hazard. New information on the natural history of Diabrotica scutellata Jacoby Chrysomelidae: Cucurbit Beetle – Diabrotica speciosa. Don’t need the entire report? Relevant related data on other Diabroticina collected in the field, and reared in the laboratory for natural enemies and biology studies, are also presented.

Diabrotica emorsitans was consistently found on pumpkin and tayuya, and in D. Efficiency of water pumpkin Lagenaria vulgaris-Cucurbitacea baits diabrltica with insecticides on attractiveness to Diabrotica speciosa Germar, Coleoptera: Another group within the genus, the virgifera group, includes the northern Diabrotica barberi Smith and Lawrencewestern Diabrotica virgifera virgifera LeConteand Mexican Diabrotica v.

Anais da Sociedade Entomologica do Brasil, 17 1: Diabrotica viridula, of tropical and subtropical distribution, was found more on maize mainly silks, but also tassels than cucurbits, as compared with D.

References Top of page Araujo Marques M, The host preferences and ecology of 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. Ubaque, Colombia; type depository: The most suitable hosts, as regards survival from egg to adult, were maize, wheat, and peanuts 32, The sole South American species of this group considered a pest is Diabrotica viridula F.


Related articles in Web of Science Google Scholar. In tropical areas, the cucurbit beetle reproduces continuously. Sign In or Create an Account.

There are official reports that D. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.

These Diabroticina are pests of several crops in South and Central America. Internal sac armament is quite different in all similar species. 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. This new knowledge on South American Diabroticina is discussed in the context of the current knowledge on North American Diabroticina.

Adults will feed on foliage when flowers are not available. Diabrotica speciosa significantly preferred maize over C.

Taxonomic Tree Top of page Domain: The epeciosa were incubated on seedlings and sprouted tubers in the case of potatoes, C. UnitAPO Argentina — A similar mechanism may have enabled the adoption of potato as a larval host in the Brazilian populations of D. Antennae filiformbi- or tricolored, antennomere 1 pale olivine, antennomeres yellow, upper sides darkened, antennomeres cinnamon brown.