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.
|Published (Last):||25 January 2004|
|PDF File Size:||3.36 Mb|
|ePub File Size:||2.32 Mb|
|Price:||Free* [*Free Regsitration Required]|
Also, data on adult feeding hosts, and host range shifts related to the season, were gathered through direct observation in the field. Tarsi and tibiae black or piceous, femora pale olivine.
Their eggs did not diapause, nor did overwintering adults produce eggs in any way more resistant to cold.
Again, however, not all the hosts were present s;eciosa each collection site, so the average proportions do not necessarily sum one for all the hosts for each species. Diabrotkca de Agronomia y Veterinaria, The evidence of unspecific host selection by the larvae, sudden switch to new hosts, as D. Diabrotica emorsitans was consistently found on pumpkin and tayuya, and in D. However, because not all the hosts were present at each collection site, the average proportions do not necessarily sum 1.
Ubaque, Colombia; type depository: Eggs are oviposited on the soil close to a host plant.
Chrysomelidaein central Mexico. The larvae were incubated on seedlings and sprouted tubers in the case of potatoes, C.
Insect pests of sweet passion fruit in Distrito Federal. Population characteristics of a western corn rootworm Coleoptera: Host plant breadth and importance of cu-curbitacins for the larvae of Diabroticites Galerucinae: Caracterizacion del tercer estadio larval de Diabrotica speciosa.
Chrysomelidae to corn and soybean plants in a walk-in wind tunnel. Feed mainly on vegetables, but are particularly associated with Cucurbitaceae. Western corn rootworm Coleoptera: Corn rootworm rearing methodologies. Furthermore, the larvae seem to be unable to choose a suitable host other than by taste Branson and KrysanBernclau and Bjostad Six colonies of D.
The other virgifera group species studied, D. Chandler, ; Icuma et al. Nineteen genotypes 17 landraces and 2 cultivars were spefiosa for antibiosis in assays that were conducted in the laboratory using seedling maize plants where the development time, longevity, weight, total survival, and sex ratio of adults were evaluated.
Elytra are smooth in D. Bechyne J; Bechyne B, Generate a print friendly version containing only the sections you need. However, 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.
Diabrotica speciosa – Wikipedia
The sole South American species of this group considered a pest is Diabrotica viridula F. They also reported mass attacks on squash seedlings early in the growing season.
Ministerio da Agricultura, Depto. Damage caused by the leaf beetle, Diabrotica speciosa Germar,on beans Phaseolus vulgaris L. Five colonies of D. Colonia Tovar, Venezuela; type depository: Diabrotica speciosa Germar Coleoptera: