Biology and Management of Pest Diabrotica Species in South America

Insects

Guillermo Cabrera Walsh¹  Alexandre de Sene Pinto²  CrébioJ. Ávila³  DoriE. Nava⁴  Nora Cabrera⁵  DonaldC. Weber⁶ 

[1] ARS-SABCL/FuEDEI (Foundation for the Study of Invasive Species), Hurlingham B1686EFA, Argentina;Centro Universitario Moura Lacerda, Ribeirão Preto, São Paulo 14076-510, Brazil;EMBRAPA Agropecuaria Oeste, Dourados, Mato Grosso de Sul Caixa-postal 449, Brazil;EMBRAPA Clima Temperado, Pelotas, Rio Grande do Sul Caixa-Postal 403, Brazil;Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, La Plata B1900FWA, Argentina;USDA-ARS Invasive Insect Biocontrol & Behavior Laboratory, Baltimore Avenue, Beltsville, MD 10300, USA;

关键词: Diabrotica speciosa;    Diabrotica balteata;    Diabrotica viridula;    rootworm management;    maize pests;    cucurbitacins;   

DOI  :  10.3390/insects11070421

来源: DOAJ

【 摘 要 】

The genus Diabrotica has over 400 described species, the majority of them neotropical. However, only three species of neotropical Diabrotica are considered agricultural pests: D. speciosa, D. balteata, and D. viridula. D. speciosa and D. balteata are polyphagous both as adults and during the larval stage. D. viridula are stenophagous during the larval stage, feeding essentially on maize roots, and polyphagous as adults. The larvae of the three species are pests on maize, but D. speciosa larvae also feed on potatoes and peanuts, while D. balteata larvae feed on beans and peanuts. None of these species express a winter/dry season egg diapause, displaying instead several continuous, latitude-mediated generations per year. This hinders the use of crop rotation as a management tool, although early planting can help in the temperate regions of the distribution of D. speciosa. The parasitoids of adults, Celatoria bosqi and Centistes gasseni, do not exert much control on Diabrotica populations, or show potential for inundative biocontrol plans. Management options are limited to insecticide applications and Bt genetically modified (GM) maize. Other techniques that show promise are products using Beauveria bassiana and Heterorhabditis bacteriophora, semiochemical attractants for monitoring purposes or as toxic baits, and plant resistance.

【 授权许可】

Unknown