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Insects

Title:		Biology and Management of Pest Diabrotica Species in South America
Author(s):		Cabrera Walsh G; Avila CJ; Cabrera N; Nava DE; de Sene Pinto A; Weber DC;
Address:		"ARS-SABCL/FuEDEI (Foundation for the Study of Invasive Species), Hurlingham B1686EFA, Argentina. EMBRAPA Agropecuaria Oeste, Dourados, Mato Grosso de Sul Caixa-postal 449, Brazil. Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, La Plata B1900FWA, Argentina. EMBRAPA Clima Temperado, Pelotas, Rio Grande do Sul Caixa-Postal 403, Brazil. Centro Universitario Moura Lacerda, Ribeirao Preto, Sao Paulo 14076-510, Brazil. USDA-ARS Invasive Insect Biocontrol & Behavior Laboratory, Baltimore Avenue, Beltsville, MD 10300, USA"
Journal Title:		Insects
Year:		2020
Volume:		20200708
Issue:		7
Page Number:		-
DOI:		10.3390/insects11070421
ISSN/ISBN:		2075-4450 (Print) 2075-4450 (Electronic) 2075-4450 (Linking)
Abstract:		"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"
Keywords:		Diabrotica balteata Diabrotica speciosa Diabrotica viridula cucurbitacins maize pests rootworm management semiochemicals;
Notes:		"PubMed-not-MEDLINECabrera Walsh, Guillermo Avila, Crebio J Cabrera, Nora Nava, Dori E de Sene Pinto, Alexandre Weber, Donald C eng Review Switzerland 2020/07/12 Insects. 2020 Jul 8; 11(7):421. doi: 10.3390/insects11070421"