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13(2)2023

Preliminary survey and molecular identification of Geocoris ochropterus (Fieber) (Hemiptera: Geocoridae)


Author - Affiliation:
Le Thuy To Nhu - Ho Chi Minh City Open University, Ho Chi Minh City , Vietnam
Nguyen Bao Quoc - Nong Lam University, Ho Chi Minh City , Vietnam
Nguyen Ngoc Bao Chau - Ho Chi Minh City Open University, Ho Chi Minh City , Vietnam
Corresponding author: Le Thuy To Nhu - tonhu2210@gmail.com
Submitted: 23-08-2023
Accepted: 01-10-2023
Published: 31-10-2023

Abstract
Big-eyed bugs Geocoris spp. are a natural enemy species presented in many parts of the world that have been extensively researched because of the benefits that they bring to plants. In Vietnam, big-eyed bugs are found in many places, especially in farming complexes or large farms. In Ho Chi Minh City, Geocoris sp. was found in Pham Van Coi Commune, Cu Chi District, Ho Chi Minh City, with bug density fluctuations across seasons at an average of 5.33 ± 2.67 individuals per point. The density of the big-eyed bug in Cu Chi District was 03 times higher than the density recorded in Ham Tan District, Binh Thuan Province. Morphological and molecular-based COI genes identified the speciments from Cu Chi, Ho Chi Minh City, and Ham Tan, Binh Thuan are Geocoris ochropterus. From the research results, these two sampling sites will be selected to further evaluate the rate of natural increase of the big-eyed bug Geocoris ochropterus.

Keywords
big-eyed bugs; density of the big-eyed bug; Geocoris sp.; Geocoris ochropterus; natural enemy

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Cite this paper as:

Le, N. T. T., Nguyen, Q. B., & Nguyen, C. N. B. (2023). Preliminary survey and molecular identification of Geocoris ochropterus (Fieber) (Hemiptera: Geocoridae). Ho Chi Minh City Open University Journal of Science – Engineering and Technology, 13(2), 12-23. doi:10.46223/HCMCOUJS.tech.en.13.2.2933.2023


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DOI: https://doi.org/10.46223/HCMCOUJS.tech.en.13.2.2933.2023
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© The Author(s) 2023. This is an open access publication under CC BY NC licence.