Author(s): Pontes, Jonas Pereira ; Demolin Leite, Germano Leao ; Rodrigues Bispo, Edilson Paulo ; Tavares, Wagner de Souza ; Guimaraes de Menezes, Claubert Wagner ; Wilcken, Carlos Frederico [UNESP] ; Zanuncio, Jose Cola
Date: 2020
Persistent ID: http://hdl.handle.net/11449/196673
Origin: Oasisbr
Subject(s): Chalcidoidea; Diammonium salt; Parasitoid; Substituted glycine; Weed; Zea mays
Made available in DSpace on 2020-12-10T19:52:37Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-02-01
Trichogrammatidae (Hymenoptera) egg parasitoids are released for the fall armyworm Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae) management, and weeds are controlled mainly with glyphosate in corn Zea mays L. (Poales: Poaceae) crops. A glyphosate-based herbicide was sprayed at 13.94 L ha(-1) on eggs of the worldwide used alternative host, the Mediterranean flour moth Anagasta kuehniella Zeller (Lepidoptera: Pyralidae) parasitized by 10 Trichogrammatidae species, in a free-choice test. Parasitism, female emergence and female-biased sex ratio of these parasitoids were evaluated. Parasitism by Trichogramma acacioi Brun, Moraes & Soares, Trichogramma bennetti Nagaraja & Nagarkatti, Trichogramma brasiliensis Ashmead, Trichogramma galloi Zucchi, and Trichogramma pretiosum Riley was lower with glyphosate. This herbicide reduced the Trichogrammatoidea annulata de Santis, T. bennetti, Trichogramma bruni Nagaraja, Trichogramma demoraesi Nagaraja, T. galloi, and T. pretiosum female emergence. Female-biased sex ratio of T. annulata, T. bennetti, T. bruni, T. galloi, and T. pretiosum was lower with glyphosate. Glyphosate did not reduce the Trichogramma soaresi Nagaraja parasitism and female emergence, and, therefore, the use of this species has potential to be compatible with glyphosate.
Univ Fed Minas Gerais, Inst Ciencias Agr, Insetario GWG de Moraes, BR-39404547 Montes Claros, MG, Brazil
Asia Pacific Resources Int Holdings Ltd APRIL, PT Riau Andalan Pulp & Paper RAPP, Riau 28300, Sumatra, Indonesia
Inst Fed Norte Minas Gerais, Dept Ciencias Agr, BR-39480000 Januaria, MG, Brazil
Univ Estadual Paulista, Dept Protecao Vegetal, BR-18603970 Botucatu, SP, Brazil
Univ Fed Vicosa, Dept Entomol BIOAGRO, BR-36570900 Vicosa, MG, Brazil
Univ Estadual Paulista, Dept Protecao Vegetal, BR-18603970 Botucatu, SP, Brazil
