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Spatiotemporal Diversity of Scolytinae (Coleoptera: Curculionidae) in Three Ecosystems of Villaflores, Chiapas
Carlos Eduardo Aguilar-Castillo,
Eduardo Aguilar-Astudillo,
Armando Equihua-Martínez,
Obdulia Lourdes Segura-León,
Edith Guadalupe Estrada Venegas,
Carlos Joaquin Morales-Morales
Issue:
Volume 7, Issue 2, June 2023
Pages:
30-37
Received:
3 April 2023
Accepted:
2 May 2023
Published:
10 May 2023
Abstract: The diversity of scolitines associated with jungles and a rustic coffee plantation in the municipality of Villaflores, Chiapas, was determined during the period from August 2020 to July 2021. The insects were captured using Ecoiapar traps with ethyl alcohol as attractant. A total of 3745 individuals of scolitines were collected, grouped into 28 genera and 64 species; the species Corthylus rubricollis and Cryptocarenus laevigatus are new records for Mexico. In jungles and coffee plantations, the richest genera were Corthylus, Xyleborus, Hypothenemus and Cryptocarenus. The maximum index of diversity of scolitines determined with the Shannon-Wiener index was in the locality of Guaymas (H': 2.979); with the Margalef index, the maximum specific richness was in Roblada (DMG: 7.073). On the other hand, with the equity index, the maximum value was obtained in Guaymas (J': 0.7654); while, with the Jaccarf similarity index, the Guaymas-Roblada localities present a greater number of species in common. The scolitine population fluctuated constantly, presenting two very marked population peaks, the first in the winter season in March with 782 individuals, the second in the summer in September with 62 individuals. By locality, the populations of scolitines fluctuated constantly, with the highest number of insects recorded in the winter and spring seasons, during the dry season and at the beginning of the rainy season.
Abstract: The diversity of scolitines associated with jungles and a rustic coffee plantation in the municipality of Villaflores, Chiapas, was determined during the period from August 2020 to July 2021. The insects were captured using Ecoiapar traps with ethyl alcohol as attractant. A total of 3745 individuals of scolitines were collected, grouped into 28 gen...
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Diversity and Abundance of Pest Insects Associated with Vigna unguiculata (L.) Walp., 1843 (Fabales: Fabaceae) in Bockle and Dang Localities (North-Cameroon)
Moukhtar Mohammadou,
Boris Fouelifack-Nintidem,
Moïse Adamou,
Taïmanga,
Daniel Kossini,
Sedrick Junior Tsekane,
Babell Ngamaleu-Siewe,
Edith Laure Kenne,
Abdel Kayoum Yomon,
Martin Kenne
Issue:
Volume 7, Issue 2, June 2023
Pages:
38-61
Received:
22 April 2023
Accepted:
9 May 2023
Published:
22 May 2023
Abstract: Cowpea plants are damaged by insects in North-Cameroon. During ecological survey (2021 and 2022) in 44 plots of 4x3.5 m each, insects were captured on stems, leaves, flowers and pods, stored in vials containing 70° alcohol, identified in laboratory and the community structure was characterized. We captured 26,015 adults belonging to six orders, 13 families, 19 genera and 19 species. Coleoptera, Hemiptera and Hymenoptera were species-rich orders [five species each (26.3%)]. Hemiptera was mostly abundant (40.0%) followed by Coleoptera (27.6%), Hymenoptera (21.9%), Lepidoptera (0.9%). Heteroptera and Orthoptera were least abundant (0.8% respectively). We recorded five (26.3%) useful species [the West African predator species Cheilomenes sulphurea (Coleoptera: Coccinellidae), and four (21.1%) afrotropical Apidae species [Apis mellifera adamsonni, Amegilla calens, Amegilla sp. and Xylocopa olivacea]], seven (36.8%) phytophagous species [the indomalayan native Aulacophora indica (Coleoptera: Chrysomelidae), Nearctic native Danaus plexippus (Lepidoptera: Nymphalidae), Palaearctic native Dolerus sp. (Hymenoptera: Tenthredinidae), afrotropical native Hypolimnas misippus (Lepidoptera: Nymphalidae), afrotropical native Monolepta marginella (Coleoptera: Chrysomelidae), Palaearctic native Phyllotreta cruciferae (Coleoptera: Chrysomelidae) and the Eurasian native Tettigonia viridissima (Orthoptera: Tettigoniidae)]. We recorded seven (36.8%) sap-feeding species [the afrotropical native Anoplocnemis curvipes (Hemiptera: Coreidae), cosmopolitan Palaearctic native Aphis crassivora (Hemiptera: Aphididae), old world native Bothrogonia sp. (Hemiptera: Cicadellidae), subtropical native Dysdercus cingulata (Hemiptera: Pyrrhocoridae), western Palaearctic native Lagria hirta (Coleoptera: Tenebrionidae), North American native Poecilocapsus sp. (Hemiptera: Miridae) and the Palaearctic native Riptortus dentipes (Heteroptera: Alydidae)]. Giving up eight (42.1%) native species, 11 (57.9%) non-native species and 14 (73.7%) pest species [three natives species (15.8%) and 11 non-natives species (57.9%)]. The abundant species were M. marginella (39.9%), Poecilocapsus sp. (14.4%), Au. indica (11.4%), Ph. cruciferae (10.4%), C. sulphurea (4.6%), H. misippus (3.7%), L. hirta (3.4%), Ah. crassivora (2.4%) while 11 species (57.9%) were rare (<2.2% each). Insects associated with cowpea consisted mostly of non-native species and the situation calls for more research on the bio-ecology of recorded pests. Cowpea plants’ insect assemblage mostly presented in Bockle and Dang, a fairly significant regeneration force (Zipf and Zipf-Mandelbrot functioning models) and all conditions combine to soar. Due to the numerical and behavioural dominance of non-native insects, a significant number of resources are potentially exploitable. In due course, once the invaders would monopolize available resources and saturate the localities, they would not allow native species the niche opportunities to re-establish themselves. The consequences of loosing native species, which may well interact with the endemic flora and fauna, will be of extreme concern.
Abstract: Cowpea plants are damaged by insects in North-Cameroon. During ecological survey (2021 and 2022) in 44 plots of 4x3.5 m each, insects were captured on stems, leaves, flowers and pods, stored in vials containing 70° alcohol, identified in laboratory and the community structure was characterized. We captured 26,015 adults belonging to six orders, 13 ...
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Human Age and Sex Influences on the Repellent Activity of PMD Towards Aedes Albopictus
Niry Hasinandrianina Ramarosandratana,
Sarah Vonisoa Ralimanana,
Miarintsoa Michaële Ranarijaona,
Estelle Métay,
Voahangy Ramanandraibe,
Mbolatiana Tovo Andrianjafy,
Marc Lemaire
Issue:
Volume 7, Issue 2, June 2023
Pages:
62-69
Received:
4 May 2023
Accepted:
18 May 2023
Published:
10 June 2023
Abstract: Mosquito-borne diseases still remain one of the major public health concerns in Africa, including Madagascar. The development of new repellents has taken an important place for personal protection against mosquito bites to limit the spread of related diseases such as malaria, dengue, chikungunya and zika. However, one of the difficulties of this approach is based on the variability of human attractiveness to mosquitoes due to several factors that cause the bite frequency for each individual to be different. The objective of this article is thus to study the influences of human age and sex on the repellent activity against Aedes albopictus. Tests on volunteers inspired by the WHO protocol were conducted. Men and women of different ages from Antananarivo were selected for the experiment and Citriodiol® was used as repellent. Percentage (PI) and duration of protection were measured. We found that age influence repellent activity against Aedes albopictus. At the same quantity of compound, seniors are less protected than young volunteers (PI=61% and PI=74%, respectively). Young women show high protection with citriodiol compared to old men and women with PI about 79%. These results could be of interest in the development of an ideal repellent to limit host-vector contact and reduce the transmission of associated diseases.
Abstract: Mosquito-borne diseases still remain one of the major public health concerns in Africa, including Madagascar. The development of new repellents has taken an important place for personal protection against mosquito bites to limit the spread of related diseases such as malaria, dengue, chikungunya and zika. However, one of the difficulties of this ap...
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Host Preference of Aulacaspis tubercularis Newstead (Homoptera: Diaspididae) to Different Mango Cultivars in East Wollega and East Shewa Zones, Ethiopia
Temesgen Fita,
Emana Getu,
Mulatu Wakgari,
Kebede Woldetsadike
Issue:
Volume 7, Issue 2, June 2023
Pages:
70-82
Received:
23 December 2022
Accepted:
13 June 2023
Published:
27 June 2023
Abstract: Scale insects are serious pests of mango (Mangifera indica) in many mango-producing countries of the world, including Ethiopia. Among the many scale insects, the white mango scale, Aulacaspis tubercularis Newstead (Homoptera: Diaspididae), is a key insect pest of mango causing devastating losses. The current experiment was conducted to study the host preference of A. tubercularis to different mango cultivars grown at Raj Agro Industry Loko Mango Commercial Farm (RAILMCF) in the East Wollega and Melkasa Agricultural Research Center (MARC) mango orchards in the East Shewa zones. Nine mango cultivars were included in the study, viz. Kent, Tommy Atkins, Apple, Kiett, Dodo, Alphonso, Van Dyke, Sabre, and Local cultivars. Among the mango cultivars included in this study, Dodo and Alphonso were grown only at RAILMCF, whereas Van Dyke and Sabre cultivars were grown at MARC. The host preference of A. tubercularis was determined by counting A. tubercularis clusters (ATCs) formed on infested mango leaves over twelve consecutive months from January to December 2018. Four mango trees from each cultivar were randomly selected, and 12 mango leaves were collected at four cardinals from the upper, middle, and lower parts of the tree at monthly bases. The results of the study revealed that the peak maximum mean ATCs were recorded during the month of June on local cultivars at RAILMCF and MARC, with values of 50.97±4.62 and 49.22±5.13, respectively. The minimum mean average clusters of A. tubercularis aggregation were recorded on the Dodo cultivar (0.47±0.56) at RAILMCF and on the Apple cultivar (0.33±0.48) at MARC during the month of November. At both study sites, the mean annual minimum ATCs formation was recorded on Sabre (2.14±0.41) and Vandyke (2.29±0.33), followed by Dodo (4.26±0.63) and Apple (5.20±1.02), respectively. The variation in cluster formation of A. tubercularis on different mango cultivars and the sampling protocol presented here could be used as initial preliminary information for future research on developing resistant cultivars for integrated pest management methods of A. tubercularis.
Abstract: Scale insects are serious pests of mango (Mangifera indica) in many mango-producing countries of the world, including Ethiopia. Among the many scale insects, the white mango scale, Aulacaspis tubercularis Newstead (Homoptera: Diaspididae), is a key insect pest of mango causing devastating losses. The current experiment was conducted to study the ho...
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Revision of the Tribe Onciderini Thomson, 1860 (Coleoptera: Cerambycidae) from the Entomological Collection (CACH), Agronomic Sciences, Villaflores, Chiapas
Carlos Joaquín Morales Morales,
Eduardo Aguilar Astudillo,
Reynerio Adrián Alonso Bran,
Carlos Ernesto Aguilar Jiménez,
Antonio Gutiérrez Martinez,
Mariano Solís López,
Luis Daniel Barrientos Cruz
Issue:
Volume 7, Issue 2, June 2023
Pages:
83-88
Received:
29 May 2023
Accepted:
19 June 2023
Published:
29 June 2023
Abstract: The present work was carried out in the Entomological Collection (CACH) located in the CUTT (University Center for Technology Transfer) San Ramón, property of the Faculty of Agronomic Sciences, Campus V of the Autonomous University of Chiapas; with the entomological material of the Onciderini Tribe (Cerambycidae: Lamiinae) in order to determine taxonomically at the genus and species level. Noting the collection data that each specimen presents as: place and date of collection and collector, which served to know its distribution and date of appearance in the state of Chiapas. The determination of the species that are reported in this work was carried out based on the specialized literature consulted and by comparison with photographic catalogs, where the external morphological characteristics of each species are described. 84 specimens of the Onciderini Tribe were reviewed, of which three genera Lochmaeocles, Oncideres and Tulcus were determined, which group 19 species. The species with the highest number of specimens were: Lochmaeocles pseudovestitus, Oncideres ocellaris, L. cornuticeps pacificus, O. fulvostillata and O. putator putator with 13, 13, nine, six and six specimens respectively; the species Lochmaeocles marmoratus, Oncideres punctata, O. pallifasciata and O. rubra are only represented by one specimen respectively. The species Lochmaeocles cortuniceps cortuniceps, L. pseudovestitus, Oncideres albipilosa and Tulcus lycimnius are new records for Chiapas. Oncideres pallifasciata and O. rhodosticta are new records for Oaxaca. The species Lochmaeocles marmoratus and Oncideres sparsemaculatus are reported for the first time for Mexico.
Abstract: The present work was carried out in the Entomological Collection (CACH) located in the CUTT (University Center for Technology Transfer) San Ramón, property of the Faculty of Agronomic Sciences, Campus V of the Autonomous University of Chiapas; with the entomological material of the Onciderini Tribe (Cerambycidae: Lamiinae) in order to determine tax...
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