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

• Published in: Caatinga Vol. 35; no. 1; pp. 239 - 242
• Main Authors: Santos, Tatiele Pereira dos, Oliveira, Patrícia Cristina do Carmo, Giustolin, Teresinha Augusta, Alvarenga, Clarice Diniz
• Format: Journal Article
• Language: English; Portuguese
• Published: Mossoro Universidade Federal Rural do Semiárido 01-01-2022; Universidade Federal Rural do Semi-Árido
• Subjects: Agricultural ecosystems; AGRICULTURE, DAIRY & ANIMAL SCIENCE; AGRONOMY; Aprostocetus; Arid regions; Arid zones; Control programs; Controlled conditions; Ethanol; Eulophidae; FISHERIES; FOOD SCIENCE & TECHNOLOGY; FORESTRY; Guava; Hemiptera; Hymenoptera; Identification; Insecticides; Insects; Laboratories; Natural enemies; Orchards; Parasitism; Parasitoids; Pest control; Psyllaephagus; Semi arid areas; Semiarid lands; Signiphoridae; Taxonomy; Tetrastichus; Triozoida limbata; VETERINARY SCIENCES; Brazil; Minas Gerais Brazil; Guava psyllid; Parasitoids; Psyllaephagus trioziphagus; Biological control; Parasitoides; Psilídeo da goiabeira; Controle biológico
• ISSN: 1983-2125; 0100-316X; 1983-2125
• DOI: 10.1590/1983-21252022v35n125rc

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.