Insectes ravageurs des graines de légumineuses

Huignard, J; Glitho, Isabelle Adolé; Monge, J. P.; Régnault-Roger, Catherine

doi:10.35690/978-2-7592-1656-7

Cited by 16 publications

(16 citation statements)

References 147 publications

(217 reference statements)

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“…The results showed that the sexual maturity of females increased along with the density of flowers, leading to ovipositioning on first pods sets. The results corroborated the laboratory observations of Huignard et al ( 4 ). Thus, for weevils, flowers were a meeting place for mating, which could explain the lack of sexual pheromones (Frérot, personal communication).…”

Section: Discussionsupporting

confidence: 92%

“…Typically, adults first feed on the plant pollen, then females lay eggs on pods, and finally, larvae feed and develop into the seeds. Therefore, in Fabaceae, the plant phenology, such as blooming and pod setting, are components of the selective pressure driving the optimal physiological development of bruchid beetles ( 4 – 7 ).…”

Section: Introductionmentioning

confidence: 99%

“…B rufimanus is univoltine and the reproductive diapause is compulsory. Photoperiod and temperature conditions regulate the end of the diapause ( 4 ). In spring, when temperatures reach daily maxima, from 17 to 20°C, broad bean weevils leave overwintering sites and migrate to V. faba fields, where they feed on pollen ( 15 , 16 ).…”

Section: Introductionmentioning

confidence: 99%

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Physiological Synchrony of the Broad Bean Weevil, Bruchus rufimanus Boh., to the Host Plant Phenology, Vicia faba L.

2021

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The aims of the study were to understand the physiological and phenological relationship between Bruchus rufimanus and Vicia faba in the perspective of IPM strategies. V. faba, an important food resource for humans and livestock is the main host plant of B. rufimanus. Adults feed on the pollen, females lay eggs on pods, and larvae develop into the seeds. Pending the blooming phase, the weevil may feed on the pollen from wild plants. Depending on the sowing date, the phenological time lag should lead the plant parts, most utilized by the weevil, less or more available during the key life stages of the pest. The aims of the study were therefore (1) to assess the impact of the sowing date (i.e., cultivars) on the phenological relationship between B. rufimanus and V. faba, and (2) to identify alternative pollen resources during the vegetative phase. Insects were collected weekly on two cultivars: winter-sown and spring-sown fields. Ovarian development, fecundity, and diet were monitored using dissected adults. Results showed that immature adults colonized the blooming winter-sown field and then 2 weeks later, the blooming spring-sown field. Sexual maturity of the weevils is related with V. faba pollen consumption. The sexual maturity of females increased with the growing density of flowers and the first pods were quickly covered with eggs. In spring-sown field, first pods grew 19 days later, while collected females in winter sown field had already laid most of their eggs. Feeding tests were carried using flowers collected from plants growing close to the fields: wild chervil, oilseed rape and wild Prunus. All this pollen were consumed by the weevils. The study showed a perfect synchrony between the host and the pest. Late sowing date and control of the early blooming wild plants surrounding the crops might reduce the attacks in field beans. More broadly, the study helps to understand the eco-ethology of the insect in cultivated areas.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

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Physiological Synchrony of the Broad Bean Weevil, Bruchus rufimanus Boh., to the Host Plant Phenology, Vicia faba L.

2021

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“…Thus, 25.60% of larvae from C. serratus eggs died at the larval stage, as they were unable to weave cocoons. Larvae that have reached the 4 th stage emerged from the seeds to weave C. serratus cocoons for pupation ( [26], although some larvae may weave cocoons inside the seed. This low rate of emergence is due to larval mortality caused by inter-larval competition, caused by the supernumerary population of larvae in the seeds.…”

Section: Discussionmentioning

confidence: 99%

Study of Some Biodemographic Parameters of <i>Caryedon serratus</i> Olivier (Coleoptera: Chrysomelidae) Insect Pest of Tamarind (<i>Tamarindus indica</i> Lin.) Fruit, in Burkina Faso

Ki,

Kam,

Kabore

et al. 2024

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The lack of food security leads us to turn to the riches of the forest, namely non-timber forest products (NTFP) and timber forest products (TFP). In Burkina, these products are a source of income for families, improving their living conditions. Tamarindus indica L. that is a NFTP, is widely used in both rural and urban areas. Unfortunately, tamarind is subject to attack by Caryedon serratus. Its biological activity begins on the fruit before the harvest. The aim of our study is to evaluate some biodemographic parameters of the insect pest C. serratus Olivier. First100 healthy T. indica pods were placed in contact with ten pairs of C. serratus for 24 hours. 25 pods, each carrying a maximum of two eggs, were divided into five batches of 5 pods. Then a pair of C. serratus aged less than 24 h was placed in contact with 4 healthy pods for 24 h. Every day, the pair was removed and transferred to another box containing 4 new healthy pods. A total of 20 replicates were performed. The results showed that C. serratus has an average lifespan of 14 days. However, the female ( 16days) lived longer and laid an average of 34 eggs during her lifetime. The egg-laying period lasted 14 days, the number of eggs increased until reaching a maximum peak on the 4 th day. C. serratus has an embryonic development time of 3 days and an emergence rate of 66.63%. However, the weight of males and females differed significantly (p = 0.0108). We found an intrinsic rate of natural increase of 0.12 and a population doubling time was 5.68 days. These results have enabled us to gain a better understanding of its development cycle and its capacity for regeneration. This allows us to implement control strategies for better stock protection.

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“…Ces espèces de bruches nuisibles aux stocks de légumineuses sèches peuvent accomplir plusieurs générations par an, indifféremment dans les réserves de graines sèches ou dans les cultures de légumineuses-hôtes E x e m p l a i r e a u t e u r en y allant pondre au moment de la formation des gousses. Ces espèces sont de véritables fléaux pour les réserves de légumineuses et elles peuvent y occasionner des dégâts importants pouvant dépasser 30 % de perte pondérale sur niébé (Huignard et al, 2011).…”

Section: Les Bruches Des Légumineuses (Famille Des Bruchidés)unclassified

La conservation des grains après récolte

Cruz¹,

Hounhouigan²,

Fleurât-Lessard³

2016

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Le centre technique de coopération agricole et rurale (CTA) est une institution internationale conjointe aux États du groupe ACP (Afrique, Caraïbes, Pacifique) et de l'Union européenne (UE). Il intervient dans les pays ACP pour améliorer la sécurité alimentaire et nutritionnelle, accroître la prospérité dans les zones rurales et garantir une bonne gestion des ressources naturelles. Il facilite l'accès à l'information et aux connaissances, favorise l'élaboration des politiques agricoles dans la concertation et renforce les capacités des institutions et communautés concernées. Le CTA opère dans le cadre de l'Accord de Cotonou et est financé par l'UE.

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Insectes ravageurs des graines de légumineuses

Abstract: Adulte femelle de Callosobruchus maculatus F. du morphe non-voilier (l : 3 à 5 mm). © Irbi Tours. 6. Callosobruchus maculatus F., femelle (avec taches noires sur les élytres), mâle (sans taches sur les élytres), du morphe voilier.

Cited by 16 publications

References 147 publications

Physiological Synchrony of the Broad Bean Weevil, Bruchus rufimanus Boh., to the Host Plant Phenology, Vicia faba L.

Physiological Synchrony of the Broad Bean Weevil, Bruchus rufimanus Boh., to the Host Plant Phenology, Vicia faba L.

Study of Some Biodemographic Parameters of <i>Caryedon serratus</i> Olivier (Coleoptera: Chrysomelidae) Insect Pest of Tamarind (<i>Tamarindus indica</i> Lin.) Fruit, in Burkina Faso

La conservation des grains après récolte

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Insectes ravageurs des graines de légumineuses

Abstract: Adulte femelle de Callosobruchus maculatus F. du morphe non-voilier (l : 3 à 5 mm). © Irbi Tours. 6. Callosobruchus maculatus F., femelle (avec taches noires sur les élytres), mâle (sans taches sur les élytres), du morphe voilier.

Cited by 16 publications

References 147 publications

Physiological Synchrony of the Broad Bean Weevil, Bruchus rufimanus Boh., to the Host Plant Phenology, Vicia faba L.

Physiological Synchrony of the Broad Bean Weevil, Bruchus rufimanus Boh., to the Host Plant Phenology, Vicia faba L.

Study of Some Biodemographic Parameters of &lt;i&gt;Caryedon serratus&lt;/i&gt; Olivier (Coleoptera: Chrysomelidae) Insect Pest of Tamarind (&lt;i&gt;Tamarindus indica&lt;/i&gt; Lin.) Fruit, in Burkina Faso

La conservation des grains après récolte

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Study of Some Biodemographic Parameters of <i>Caryedon serratus</i> Olivier (Coleoptera: Chrysomelidae) Insect Pest of Tamarind (<i>Tamarindus indica</i> Lin.) Fruit, in Burkina Faso