Abstract. The reproductive biology, and larval and adult host range of Diabrotica speciosa (Germar), Diabrotica viridula (F.), Acalymma spp. (Coleoptera: Chrys. Diabrotica viridula. Alexander Derunkov. rootworm beetle. Diabrotica viridula. Alexander Derunkov. rootworm beetle. Diabrotica viridula. Alexander Derunkov. FAMILIA CHRYSOMELIDAE Latreille, SUBFAMILIA GALERUCINAE Latreille, TRIBU Luperini Gistel, Diabrotica viridula Fabricius.

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A similar situation was reported by Barbercheck et al. Although Diabroticites will oviposit on several moist substrates, such as sand, soil, cotton wool, and paper, the presence of fresh food, and especially the larval host, will greatly stimulate oviposition Branson et al. The other species collected were also offered a meridic diet, but they survived better on squash slices and seedlings unpublished data.

At least species in 24 families were examined in southern South America, and found to host feeding adult beetles at least once Table 1.

Diabrotica speciosa has been reared, djabrotica greater or lesser success viriduls the roots of maize, wheat, squash, potatoes, beans, soybeans, and peanuts Table 5. So the adult feeding hosts of D.

Aedeagus symmetric, with four internal sac sclerites. Multivoltinism and lack of egg diapause was demonstrated for the three species, and field data suggest other South American species present the same traits.

Finally, — eggs, depending on the number of eggs available, were pipetted from a beaker, and spread on the culture.

Diabrotica – Wikipedia

The larval host range was tested for D. Feeding and oviposition behavior and life cycle strategies of Diabrotica: Sign In or Create an Account. 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: It appears to have entered Europe from the US in large numbers during the Yugoslav wars and is especially widespread around US military airports, whose planes were likely to have transported the voridula.


By using this site, you agree to the Terms of Use and Privacy Policy. However, drastic beetle density differences normally observed when two or more of the hosts were found in 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.

Elytral epipleura completely yellow or completely viridulx. Diabrotica Scientific classification Kingdom: Also, the mobility of the beetles makes counting very imprecise because, for instance, they can fly away or hide more easily in the foliage of a soybean row than in the large, relatively isolated sunflower head.

Fact Sheet: Cucurbit beetle | Citrus Pests

Evaluation of semiochemical baits for management of southern corn rootworm Coleoptera: Population characteristics of a western corn rootworm Coleoptera: Diabrotica speciosa fucata group larvae developed well on maize Zea mays Diabrotuca.

In winter, diabroticz, a drastic shift was observed, being pigweed, maize silks, leaf vegetables, especially spinach SpinaciaoleraceaL. Colombia, Ubaque; type depository: In an experiment where seedlings of the favorite hosts of D. Related articles in Web of Science Google Scholar. Members of this genus include several destructive agricultural pest species. An extreme case of different feeding to oviposition host was observed in D. Ds, Diabrotica speciosa; Dv, D. The production of diapausing eggs was also tested for D.


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. In this sense, cool weather may be regarded more as a preservation benefit until suitable hosts appear, than a hazard. They may also transmit bacterial wilt in cucurbits unpublished data.

In the same laboratory conditions, D. Species of the fucata group, however, are generally multivoltine, polyphagous, and are not known to have species with diapausing eggs, but rather overwintering adults Krysan and Smith Archived from the original on Their eggs did not diapause, dkabrotica did overwintering adults produce eggs in any way more resistant to virldula.

Plants with zero larval survival were not tested again, the others had 10 more repetitions. Ministerio da Agricultura, Depto.

In the southernmost homelands of D. Chrysomelidae strain in east-central Illinois corn and soybean fields.

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A third species, the southern corn rootwormD. The apparent host shift observed in winter for D. In tropical areas, the cucurbit beetle reproduces continuously. EPPO data sheets on quarantine pests Diabrotica speciosa. This page was last edited on 22 Marchat