Article
Agriculture, Multidisciplinary
Francimauro S. Morais, Kirley M. Canuto, Paulo R. Ribeiro, Alison B. Silva, Otilia D. L. Pessoa, Cleverson D. T. Freitas, Emanuel Alves Bezerra, Jose F. C. Goncalves, Diego P. Souza, Brandon F. Sousa, Ayrles F. B. Silva, Marcio Ramos
Summary: This study assessed the insecticide potential of compounds extracted from Himatanthus drasticus latex against Callosobruchus maculatus. The results showed that plumieride from the latex had lethal effects on the larvae and inhibited enzyme activity in vivo. Additionally, the application of the hydroalcoholic fraction on seeds reduced infestation effectively.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Entomology
Ana Maria Camelo da Silva, Claudia Helena Cysneiros Matos, Carlos Romero Ferreira de Oliveira, Thieres George Freire da Silva
Summary: This study assessed the susceptibility of different landrace genotypes of cowpea to attack by the weevil Callosobruchus maculatus, finding variability in resistance levels among genotypes. Commercial and landrace genotypes showed similar behavior in terms of insect resistance, with some genotypes demonstrating antibiosis resistance. Utilization of insect-resistant genotypes can lead to reduced infestation and pesticide use, resulting in positive economic impacts.
JOURNAL OF STORED PRODUCTS RESEARCH
(2021)
Article
Entomology
Akovognon Dieudonne Kpoviessi, Symphorien Agbahoungba, Eric E. Agoyi, Ephraim Nuwamanya, Achille E. Assogbadjo, Daniel C. Chougourou, Hubert Adoukonou-Sagbadja
Summary: This study investigated the biochemical compounds of cowpea genotypes to determine their resistance to bruchid. Resistant genotypes contained higher levels of defensive compounds, while susceptible genotypes had lower amounts. The path analysis revealed causal relationships between biochemical compounds and resistance parameters.
JOURNAL OF STORED PRODUCTS RESEARCH
(2021)
Article
Entomology
Artur Oliveira Abreu, Leda Rita D'Antonino Faroni, Marcus Vinicius de Assis Silva, Adalberto Hipolito de Sousa, Ernandes Rodrigues de Alencar, Gutierres Nelson Silva
Summary: This study aimed to characterize the reaction kinetics of ozone gas in cowpea beans, determine its insecticidal activity against Callosobruchus maculatus adult insects, and assess grain quality after ozonation. The results showed that ozone gas effectively controls Callosobruchus maculatus without changing the grain quality.
JOURNAL OF STORED PRODUCTS RESEARCH
(2022)
Article
Entomology
Khin Thandar, Kularb Laosatit, Tarika Yimram, Prakit Somta
Summary: The study investigated the genetics of resistance to Callosobruchus chinensis and Callosobruchus maculatus in cowpea accession TVu 2027. Results showed that TVu 2027 exhibited moderate resistance to both bruchid species. Genetic studies indicated that resistance to C. chinensis was controlled by two genes, while resistance to C. maculatus was controlled by one gene. Generation mean analysis revealed that genes with additive effect and additive x dominance gene interaction are involved in the resistance to both bruchid species.
JOURNAL OF STORED PRODUCTS RESEARCH
(2021)
Article
Multidisciplinary Sciences
Keisuke Tanaka, Kenji Shimomura, Akito Hosoi, Yui Sato, Yukari Oikawa, Yuma Seino, Takuto Kuribara, Shunsuke Yajima, Motohiro Tomizawa
Summary: This study analyzed the antennal transcriptome of the cowpea beetle and identified several odorant-related genes. Differential gene expression analysis revealed specific genes expressed in males, providing insights into the olfaction of this major pest.
Article
Entomology
Dariusz Krzysztof Malek, Marcin Czarnoleski
Summary: This study focused on the thermal preferences of Callosobruchus maculatus seed beetles, finding that females prefer warmer habitats due to water balance, while mating status or gift size does not affect thermal preferences in either sex.
Article
Entomology
Bahram Naseri, Fatemeh Hamzavi
Summary: The study found that the effects of different chemical fertilizers and bio-fertilizers on cowpea weevil vary on cowpea pods and grains, with the use of Bradyrhizobium japonicum as an alternative to chemical fertilizers effectively reducing infestation of cowpea weevil.
JOURNAL OF STORED PRODUCTS RESEARCH
(2021)
Article
Agronomy
Gustavo Yves Rodrigues Ramos, Gutierres Nelson Silva, Ynayanna Nariza Medeiros Silva, Yago de Medeiros Silva, Izaias Santos Marques, Giovana Lopes da Silva, Marcela Silva Carvalho, Leda Rita D'antonino Faroni, Simone Kelly Rodrigues Lima, Daniel Dias Rufino Arcanjo, Massimo Lucarini, Alessandra Durazzo, Douglas Rafael e Silva Barbosa
Summary: As one of the main alternatives for controlling insect pests in stored grains, ozone with modified atmosphere is now widely used due to its ability to maintain grain quality without causing environmental damage. This study aimed to evaluate the toxicity of ozone to C. maculatus in cowpea grains and its effects on the physiological and physical properties of the grains. The lethal doses (LD50 and LD95) of ozone were determined and the impact of ozonation on water content, germination, and electrical conductivity of the grains was assessed. The results showed that ozone was toxic to C. maculatus, with higher toxicity at the bottom of the fumigation chamber. However, ozonation did not affect grain quality, as evidenced by high germination rates and constant electrical conductivity.
Article
Agronomy
Frank J. Messina, Alexandra M. Lish, Zachariah Gompert
Summary: The study used polygenic genome-wide association mapping to identify two regions of the cowpea genome associated with resistance to the seed beetle Callosobruchus maculatus. The analysis revealed substantial genetic variation for resistance measures, with one locus on chromosome 5 explaining variation in several resistance components, and another locus on chromosome 8 linked to increased seed resistance. Gene-gene interactions had some influence on resistance, but the overall genetic architecture suggests potential for breeding enhanced resistance to C. maculatus.
THEORETICAL AND APPLIED GENETICS
(2021)
Article
Entomology
Hassan A. Gad, Gomaa F. Abo Laban, Khaled H. Metwaly, Fathia S. Al-Anany, Samir A. M. Abdelgaleil
Summary: Ozone showed significant insecticidal efficacy against Callosobruchus maculatus and Callosobruchus chinensis, resulting in a high adult mortality rate and a significant decrease in progeny production within 45 days. The highest ozone concentration provided the best protection for stored cowpea seeds and had minimal impact on the chemical composition of the seeds.
JOURNAL OF STORED PRODUCTS RESEARCH
(2021)
Article
Plant Sciences
Abdelkrim Agour, Ibrahim Mssillou, Hamza Mechchate, Imane Es-safi, Aimad Allali, Azeddin El Barnossi, Omkulthom Al Kamaly, Samar Zuhair Alshawwa, Abdelfattah El Moussaoui, Amina Bari, Badiaa Lyoussi, Elhoussine Derwich
Summary: This study investigated the chemical composition of Brocchia cinerea essential oil using GC-MS, and evaluated its antimicrobial properties and insecticidal and repellent effectiveness against Callosobruchus maculatus. The results showed that the essential oil exhibited strong antimicrobial activity against several pathogenic microorganisms and had a potent insecticidal effect against C. maculatus.
Article
Biochemistry & Molecular Biology
Odara Araujo Oliveira, Sarah Rodrigues Ferreira, Elane Da Silva Ribeiro, Andre T. S. Ferreira, Jonas Perales, Katia V. S. Fernandes, Antonia E. A. Oliveira
Summary: This study explored the toxicity of Schinus terebinthifolius seed flour against the insect C. maculatus. The seed flour decreased larval survival, mass, and length. Proteins with different molecular masses isolated using chromatography were toxic to the insect. Changes in protein levels, glucose, and enzyme activity were detected in the larvae.
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
(2022)
Article
Multidisciplinary Sciences
Michael Olufemi Ashamo, Kayode David Ileke, Olaniyi Charles Ogungbite
Summary: This research investigated the effectiveness of rice husk, wheat husk, and groundnut pod ash and powder in controlling cowpea beetle infestation. Rice husk ash resulted in the highest mortality of adult beetles, while wheat husk ash reduced seed damage and weight loss effectively. The findings suggest that these agricultural waste products have promising insecticidal potential against cowpea beetles and could be used as alternatives to synthetic chemical insecticides for stored product insect control.
Article
Entomology
Samir A. M. Abdelgaleil, Ayman A. M. Atta, Hassan A. Gad
Summary: The residual toxic effect of insecticides mixed with or sprayed on stored commodities is essential for protecting stored products. The study found that abamectin was the most effective insecticide against Callosobruchus maculatus and C. chinensis, causing high adult mortality and complete suppression of progeny for up to 5 months. Chlorprifos-methyl, deltamethrin, and spinosad had varying effects on adult mortality and progeny reduction during the storage period.
JOURNAL OF STORED PRODUCTS RESEARCH
(2023)
