NATURAL PARASITISM IN Triozoida limbata (Enderlein, 1918) (HEMIPTERA: TRIOZIDAE) IN A SEMI-ARID REGION OF BRAZIL

Tatiele Pereira dos Santos; Patrícia Cristina do Carmo Oliveira; Teresinha Augusta Giustolin; Clarice Diniz Alvarenga

doi:10.1590/1983-21252022v35n125rc

Authors

Tatiele Pereira dos Santos Department of Agricultural Sciences, Universidade Estadual de Montes Claros, Janaúba, MG https://orcid.org/0000-0002-8488-0695
Patrícia Cristina do Carmo Oliveira Department of Agricultural Sciences, Universidade Estadual de Montes Claros, Janaúba, MG https://orcid.org/0000-0002-3826-5165
Teresinha Augusta Giustolin Department of Agricultural Sciences, Universidade Estadual de Montes Claros, Janaúba, MG https://orcid.org/0000-0003-1948-2137
Clarice Diniz Alvarenga Department of Agricultural Sciences, Universidade Estadual de Montes Claros, Janaúba, MG https://orcid.org/0000-0002-7818-1062

DOI:

https://doi.org/10.1590/1983-21252022v35n125rc

Keywords:

Biological control. Guava psyllid. Parasitoids. Psyllaephagus trioziphagus.

Abstract

For natural enemies to be effectively used in pest control programs, it is important to understand the basic and applied ecology of an agroecosystem, such as guava orchards in semi-arid regions. We identified the parasitoids associated with the guava psyllid, Triozoida limbata (Enderlein 1918) (Hemiptera: Triozidae), as well as the rates of natural parasitism that occur in a semi-arid region of Minas Gerais State, Brazil. About 130 terminal branches with four leaves fully open and with signs and/or presence of the psyllid were collected from a commercial guava orchard and brought to the laboratory. The material was stored under controlled conditions until the parasitoids emerged. The parasitoids were counted and fixed in 70% ethanol for species identification. In total, 9,897 individuals of T. limbata (adults and immature) and 603 parasitoids were found. The primary parasitoid, Psyllaephagus trioziphagus (Howard, 1885) (Hymenoptera: Encyrtidae), was associated with the guava psyllid, with 4.88% parasitism. Secondary parasitoids Signiphora Ashmead, 1880 (Hymenoptera: Signiphoridae), Aprostocetus Westwood, 1833, and Tetrastichus Haliday, 1844 (Hymenoptera: Eulophidae) were also identified.

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