February 19, 2021

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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Citrus Pests Content last updated June, idtools.

Genetic Structure of Liriomyza trifolii Diptera: Evaluation of semiochemical baits for management of southern corn rootworm Coleoptera: The Colombian species of the genus Diabrotica, with descriptions of those hitherto uncharacterized.

Domiciano NL; Santos B, Again, however, not all the hosts were present at each collection site, so the average proportions do not necessarily sum one for all the hosts for each species.

Citrus Pests

The results in Table 3 show the favorite hosts of the other common Diabroticina, in terms of average proportion of beetles per host, in different seasons.

Revista Ceres, 31 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: Uso do tajuj e purungo como atraentes de vaquinha em olericultura. Datasheet Diabrotica speciosa cucurbit beetle. Eggs are oviposited on the soil close to a host plant.

Distribution Maps Top of page You can pan and zoom the map. The distribution in this summary table is based on all the information available.


Crop life table studies of the pests of beans Phaseolus vulgaris L. It furthers the University’s objective of excellence in research, scholarship, and education by publishing worldwide. However, every plant species was tested alongside with maize as a control host for Diabrotica spp.

diabrotica beetle Diabrotica speciosa speciosa (Germar)

Furthermore, the larvae seem to be unable to choose a suitable host other than by taste Branson and KrysanBernclau and Bjostad Head basic color yellow. Sign In or Create an Account. In preliminary multiple-choice experiments, where several putative hosts were offered simultaneously, oviposition was greatly reduced, and results were inconclusive unpublished data.

However, drastic beetle density differences normally observed when two or more of the hosts were found apeciosa the same site compensate for these imprecisions, in that rarely were the densities observed close enough as to pose any doubts as to which plant species had more beetles feeding on it.

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Together with these methods, polyester cloths sprayed with root or berry extracts of the wild, perennial cucurbits, tayuya Cayaponia spp.

Ubaque, Colombia; type depository: Multiple generations are possible.

Development time is longer and more irregular, and percent emergence lower, showing a general impaired development on this crop. Scutellum piceous or black. Antennae filiformbi- or tricolored, antennomere 1 pale olivine, antennomeres yellow, upper sides darkened, antennomeres cinnamon brown. A similar mechanism may have enabled the adoption of potato as a larval host in the Brazilian populations of D. Although these laboratory results may not reflect field conditions exactly, the reduced oviposition, prolonged larval stage, and greatly reduced larval survival 4.


Furthermore, the favorite hosts consistently had more beetles than the concurrent second choice hosts. Laboratory test on host breadth of Acalymma and Diabrotica spp. References Top of page Araujo Marques M, Estudio sobre el g’nero Diabrotica Chev.

Feeding and oviposition behavior and life cycle strategies of Diabrotica: Adults like to feed on pollen-rich flowers such as cucurbits, thistle, and sunflower. Contributio ao estudo dos crisomeledeos do gunero Diabrotica. Diabrotica speciosa has been reared, with greater or lesser success on the roots of maize, wheat, squash, potatoes, beans, soybeans, and peanuts Table 5. Diabrotica viridula virgifera grouppreferred maize as adult and larval food, and for oviposition.

Merrill roots, and not so well on pumpkin Cucurbita maxima Duchesne and Cucurbita andreana Naudinbeans Phaseolus spp. According to our caged experiments, this species can develop on potato. Wild and cultured cucurbits, grain crops, pasture crops, and wild species that are common hosts of adult Diabroticites, were sampled from the year to the yearto verify larval hosts in the wild.