Desert locust (Schistocerca gregaria Forskal) and its management: A review

Katel, Shambhu; Mandal, Honey Raj; Neupane, Pooja; Timsina, Sandipa; Pokhrel, Pratima; Katuwal, Amrit; Subedi, Sudeep; Shrestha, Jiban; Shah, Kabita Kumari

doi:10.11594/jaab.02.01.08

Cited by 7 publications

(3 citation statements)

References 21 publications

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“…It is related to the sex difference in basal breadth and length because the palate of females participates in the grooving process and has a stronger demand for mechanical sensing, particularly for feeling the force required by the palate during the grooving process. This has also been reported in insects such as the desert locust Schistocerca gregaria Forskal (Katel et al, 2021), in which the mandible participates in the grooving process, and there are some behavioral differences between males and females. On the other hand, in the ultrastructural morphology of the mandible, we found that the number of ST I in the female mandible was significantly higher than that in the male mandible.…”

Section: Discussionsupporting

confidence: 57%

Observations on the ultrastructure of the oral appendages of Glenea cantor Fabricius (Coleoptera: Lamiinae)

Wu,

Li,

Ming

et al. 2023

Microscopy Res & Technique

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Using scanning electron microscopy, we examined the gross and ultrastructure morphology of the mandibles, labial palpi, and mandibular palpi of adult male and female Glenea cantor beetles. The morphology of these parts, both in their gross and ultrastructure, varied significantly between males and females. The lengths of the mandible, labial palpi, and mandibular palpi were clearly noticeably longer in females than in men, which is mostly related to the oviposition mechanism. In terms of the ultrastructural morphology of the mandibles, labial palpi, and mandibular palpi, seven types of sensilla were found on these parts: sensilla twig basiconica (STB I, II, III, and IV), sensilla chaetica (Scheme IV and V), Böhm's bristles (Bb), sensilla placodea (SP), sensilla trichodea (ST II), sensilla plate (SP), sensilla coeloconica (SC), and sensilla campaniformia (SCa). Females have significantly more ST I and Scheme III on their mandibles than males. The mechanical sensors SCh and Bb, olfactory sensor ST II, taste sensor STB IV, and carbon dioxide sensor and temperature and humidity sensors SC, SP, and SCa were much more developed on the labial and maxillary palpi of females compared to those of males, which further clarified the significance of the oral appendages in oviposition behavior. These findings will advance information‐based technique design and the creation of information‐based pest control strategies by assisting in our understanding of the host preference and oviposition behavior of adult G. cantor.Research Highlights The external morphology and distribution of the oral appendages of Glenea cantor between sexes has been researched through scanning electron microscopy (SEM) for the first time. Several significant differences between males and females have been found by analyzing the oral appendages of G. cantor with SEM. The differences in the structure of oral appendages of G. cantor between sexes reflect functional differences in reproductive behaviors.

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Section: Discussionsupporting

confidence: 57%

Observations on the ultrastructure of the oral appendages of Glenea cantor Fabricius (Coleoptera: Lamiinae)

Wu,

Li,

Ming

et al. 2023

Microscopy Res & Technique

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show abstract

“…This is because the palate of females is involved in the grooving process and has a greater demand for mechanical sensing, especially for sensing the force required by the palate during the grooving process, so it is related to the sex difference in basal width and length. This has also been reported in insects such as the desert locust Schistocerca gregaria Forskal (Katel et al, 2021), in which the mandible participates in the grooving process, and there are some behavioral differences between males and females. On the other hand, in the ultrastructural morphology of the mandible, we found that the number of ST I in the female mandible was significantly higher than that in the male mandible.…”

Section: Discussionsupporting

confidence: 55%

Observation on the ultrastructure of the oral appendages of Glenea cantor Fabricius (Coleoptera: Lamiinae)

Ming³

et al. 2023

Preprint

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We investigated the gross and ultrastructure morphology of the mandibles, labial palpus and mandibular palpus of adult male and female Glenea cantor beetles using scanning electron microscopy. There were significant differences between males and females in the gross and ultrastructure morphology of these parts. Observation of the gross morphology of the mandible, labial palpus and mandibular palpus revealed that their lengths were significantly greater in females, which is mainly related to the oviposition mechanism. In terms of the ultrastructural morphology of the mandibles, labial palpus and mandibular palpus, seven types of sensilla were found on these parts: sensilla twig basiconica (STB I, II, III, and IV), sensilla chaetica (SCh IV and V), Böhm’s bristles (Bb), sensilla placodea (SP), sensilla trichodea (ST II), sensilla plate (SP), sensilla coeloconica (SC) and sensilla campaniformia (SCa). Females have significantly more ST I and SCh III on their mandibles than males. The mechanical sensors SCh and Bb, olfactory sensor ST II, taste sensor STB IV, and carbon dioxide sensor and temperature and humidity sensors SC, SP and SCa were significantly more developed on female than male labial and maxillary palps, which also further explained the important role of the oral appendages in oviposition behavior. These results will help us further understand the host selection and oviposition behavior of adult G. cantor and promote the information-based design of pest control methods.

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“…An adequate assessment of the impacts on population livelihood is a complex process (FAO, 2006; Li et al., 2022; Srikrishnan et al., 2022). Desert locust is known for its ability to form massive swarms when their numbers increase (Katel et al., 2021; Song, 2004). In 2019, these swarms originating from Yemen invaded East African countries like Ethiopia, Kenya, and Somalia, destroying over 100,000 ha of crops and pastureland in Ethiopia and Somalia, and 175,000 ha in Kenya (Okonji, 2020; World Bank, 2020).…”

Section: Introductionmentioning

confidence: 99%

An Integrated Assessment Approach for Socio‐Economic Implications of the Desert Locust in Eastern Africa

Sokame,

Agboka,

Kimathi

et al. 2024

Earth's Future

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Desert locust (Schistocerca gregaria) infestations cause significant damage to crops and pastureland, impeding food security and livelihoods globally. In recent years, some East African countries have suffered severe desert locust outbreaks, causing significant harm to agriculture and local communities. To comprehensively understand and mitigate the socio‐economic impacts of this pest, an integrated assessment approach is crucial. This study proposes an integrated assessment model that combines ecological, economic, and social dimensions to analyze the multifaceted impacts of the desert locust on the rate of urbanization changes, farming expansion, and food production and how they lead to food unavailability (demand, supply, and price) and food and nutrition insecurity in Eastern Africa. A system dynamics‐based assessment model was first developed for Sudan using the dynamic relations among the factors and their variations over time and how they affect the socio‐economic variables. The developed model was used to spatially simulate the impacts over the entire Eastern Africa. Various scenarios were further simulated and analyzed, incorporating different policy options to effectively mitigate the impacts. Results demonstrated that in all the countries, desert locusts extensively contribute to the slowing down of farming expansion and food production and supply. Consequently, these factors lead to increased urbanization rates through people rural‐urban migration and food demand at different magnitudes across different countries. By considering both short‐term and long‐term effects, this approach aims to provide policymakers, researchers, and practitioners with a holistic understanding of the complex dynamics involved and inform effective management strategies. For example, communities equipped with accurate breeding detection tools and employing an integrated pest management strategy combining chemical pesticides and biopesticides had the highest potential for effectively mitigating the future impacts of desert locusts for enhancing community livelihood.

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Desert locust (Schistocerca gregaria Forskal) and its management: A review

Cited by 7 publications

References 21 publications

Observations on the ultrastructure of the oral appendages of Glenea cantor Fabricius (Coleoptera: Lamiinae)

Observations on the ultrastructure of the oral appendages of Glenea cantor Fabricius (Coleoptera: Lamiinae)

Observation on the ultrastructure of the oral appendages of Glenea cantor Fabricius (Coleoptera: Lamiinae)

An Integrated Assessment Approach for Socio‐Economic Implications of the Desert Locust in Eastern Africa

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