First record of Trichopoda ypiranga (Dios & Nihei, 2017) (Diptera: Tachinidae) parasitizing Diceraeus melacanthus (Dallas, 1851) (Hemiptera: Pentatomidae)
DOI:
https://doi.org/10.37486/2675-1305.ec08017Keywords:
Stink bug parasitism, green-belly stink bug, integrated pest management, biological control, parasitoid of adultAbstract
Trichopoda ypiranga (Dios & Nihei, 2017) (Diptera: Tachinidae) is a parasitoid of adult stink bugs and represents a promising natural enemy for integrated pest management programs. The natural occurrence of T. ypiranga parasitizing adults of Diceraeus melacanthus (Dallas, 1851) (Hemiptera: Pentatomidae) was investigated in croplands in the mid-north region of Mato Grosso, Brazil, from October 2021 to February 2025. Forty-three samples were collected from soybean, cowpea, millet, sesame, and weeds. In total, 7,754 stink bugs were collected, of which 703 were parasitized, resulting in an overall parasitism rate of 9.06%. The parasitism rate ranged from 1.04% to 30.83%, with the highest rates observed between March and May, particularly in millet (30.8%) and sesame (17.0%) crops. The most abundant parasitoid species was T. ypiranga, accounting for approximately 84% of emergences, with consistent records throughout the sampling period. Other species, such as Cylindromyia brasiliana (Guimarães, 1983), Gymnoclytia sp., and Phasia sp. (Diptera: Tachinidae), were less frequently observed. Despite the widespread presence of T. ypiranga, the parasitism rate was considered moderate, potentially influenced by intensive insecticide use in the region. These findings highlight the ecological relevance of T. ypiranga and reinforce its potential role in biological control strategies within integrated pest management programs.
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Funding data
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Fundação de Amparo à Pesquisa do Estado de Mato Grosso
Grant numbers FAPEMAT.0000063/2022 -
Fundação de Amparo à Pesquisa do Estado de São Paulo
Grant numbers 2022/14482-6
