Gilson Chipabika
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View article: Revisiting the taxonomy and molecular systematics of Sesamia stemborers (Lepidoptera: Noctuidae: Apameini: Sesamiina): updated classification and comparative evaluation of species delimitation methods
Revisiting the taxonomy and molecular systematics of Sesamia stemborers (Lepidoptera: Noctuidae: Apameini: Sesamiina): updated classification and comparative evaluation of species delimitation methods Open
In this study, we reassess the phylogenetic relationships of the genus Sesamia Guenée, 1852 and examine in more detail the members of the nonagrioides species group, for which three distinct species complexes are identified. The calamistis…
View article: Abundance, diversity and richness of natural enemies of the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), in Zambia
Abundance, diversity and richness of natural enemies of the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), in Zambia Open
The fall armyworm (FAW), Spodoptera frugiperda , an invasive pest originating from the Americas is a serious pest threatening cereal production and food security in Zambia. We studied the prevalence and abundance of natural enemies of FAW …
View article: Global genomic signature reveals the evolution of fall armyworm in the Eastern hemisphere
Global genomic signature reveals the evolution of fall armyworm in the Eastern hemisphere Open
The major plant pest fall armyworm (FAW), Spodoptera frugiperda, is native to the Americas and has colonized Africa and Asia within the Eastern hemisphere since 2016, causing severe damage to multiple agricultural crop species. However, th…
View article: Understanding the impact of fall armyworm (Spodoptera frugiperda J. E. Smith) leaf damage on maize yields
Understanding the impact of fall armyworm (Spodoptera frugiperda J. E. Smith) leaf damage on maize yields Open
Fall armyworm ( Spodoptera frugiperda J. E. Smith), a serious pest of maize and other cereals, recently invaded the Old World potentially threatening the food security and incomes of millions of smallholder farmers. Being able to assess th…
View article: Biological control interventions reduce pest abundance and crop damage while maintaining natural enemies in sub-Saharan Africa: a meta-analysis
Biological control interventions reduce pest abundance and crop damage while maintaining natural enemies in sub-Saharan Africa: a meta-analysis Open
Insect pests are a major challenge to smallholder crop production in sub-Saharan Africa (SSA), where access to synthetic pesticides, which are linked to environmental and health risks, is often limited. Biological control interventions cou…
View article: Understanding the impact of fall armyworm (<i>Spodoptera frugiperda</i>J. E. Smith) leaf damage on maize yields
Understanding the impact of fall armyworm (<i>Spodoptera frugiperda</i>J. E. Smith) leaf damage on maize yields Open
Fall armyworm ( Spodoptera frugiperda J. E. Smith), a serious pest of maize and other cereals, recently invaded the Old World potentially threatening the food security and incomes of millions of smallholder farmers. Being able to assess th…
View article: Low Impact of Fall Armyworm (<i>Spodoptera frugiperda</i> Smith) (Lepidoptera: Noctuidae) Across Smallholder Fields in Malawi and Zambia
Low Impact of Fall Armyworm (<i>Spodoptera frugiperda</i> Smith) (Lepidoptera: Noctuidae) Across Smallholder Fields in Malawi and Zambia Open
Fall armyworm (Spodoptera frugiperda Smith), a serious pest of cereals from the Americas, has spread across sub-Saharan Africa and Asia since 2016, threatening the food security and incomes of millions of smallholder farmers. To measure th…
View article: Bio-efficacy of Crude Aqueous Leaf Extracts against the Fall Armyworm (<i>Spodoptera frugiperda</i>) and Maize Ear Rots in Zambia
Bio-efficacy of Crude Aqueous Leaf Extracts against the Fall Armyworm (<i>Spodoptera frugiperda</i>) and Maize Ear Rots in Zambia Open
The use of crude aqueous leaf extracts (=plant extracts) provides an excellent opportunity to explore their potential as an alternative control method to chemical insecticides.Following the invasion of Zambia by Fall armyworm, Spodoptera f…
View article: Global genomic analysis reveals the genetic origin and secondary invasion of fall armyworm in the Eastern hemisphere
Global genomic analysis reveals the genetic origin and secondary invasion of fall armyworm in the Eastern hemisphere Open
The major plant pest fall armyworm (FAW), Spodoptera frugiperda , is native to the Americas and has colonized African and Asian countries in the Eastern hemisphere since 2016, causing severe damage to multiple agricultural crop species. Ho…
View article: Biological control interventions reduce pest abundance and crop damage while maintaining natural enemies: a meta-analysis
Biological control interventions reduce pest abundance and crop damage while maintaining natural enemies: a meta-analysis Open
Insect pests are a major challenge to smallholder crop production in sub-Saharan Africa, where access to synthetic pesticides, which are linked to environmental and health risks, is often limited. Biological control interventions could off…
View article: Biological control interventions and botanical pesticides for insect pests of crops in sub-Saharan Africa: A mapping review
Biological control interventions and botanical pesticides for insect pests of crops in sub-Saharan Africa: A mapping review Open
Agricultural productivity can be increased sustainably in sub-Saharan Africa (SSA) by reducing crop losses due to insect pest damage. As an alternative to environmentally-damaging chemical pesticides, biological control interventions and b…
View article: Laboratory screening of cowpea (Vigna unguiculata) genotypes against pulse beetle, Callosobruchus maculatus (F.)
Laboratory screening of cowpea (Vigna unguiculata) genotypes against pulse beetle, Callosobruchus maculatus (F.) Open
Research studies were conducted to screen 110 cowpea genotypes against Callosobruchus maculatus commonly known as the cowpea weevil, under the no-choice infestation condition. Out of all the genotypes screened, BBBT1-11 outperformed all th…
View article: The distribution of covert microbial natural enemies of a globally invasive crop pest, fall armyworm, in Africa: Enemy release and spillover events
The distribution of covert microbial natural enemies of a globally invasive crop pest, fall armyworm, in Africa: Enemy release and spillover events Open
Invasive species pose a significant threat to biodiversity and agriculture world‐wide. Natural enemies play an important part in controlling pest populations, yet we understand very little about the presence and prevalence of natural enemi…
View article: Screening for resistance to cowpea aphids (Aphis craccivora Koch.) In mutation derived and cultivated cowpea (Vigna unguiculata L. Walp.) genotypes
Screening for resistance to cowpea aphids (Aphis craccivora Koch.) In mutation derived and cultivated cowpea (Vigna unguiculata L. Walp.) genotypes Open
Research studies aimed at screening cowpea genotypes against Aphis craccivora K. commonly known as black aphids, under the no-choice infestation condition, were conducted in the greenhouse at Natural Resource Development College (NRDC), Lu…
View article: Comparing, evaluating and combining statistical species distribution models and <scp>CLIMEX</scp> to forecast the distributions of emerging crop pests
Comparing, evaluating and combining statistical species distribution models and <span>CLIMEX</span> to forecast the distributions of emerging crop pests Open
BACKGROUND Forecasting the spread of emerging pests is widely requested by pest management agencies in order to prioritise and target efforts. Two widely used approaches are statistical Species Distribution Models (SDMs) and CLIMEX, which …
View article: Correction to: Is radio an effective method for delivering actionable information for responding to emerging pest threats? A case study of fall armyworm campaign in Zambia
Correction to: Is radio an effective method for delivering actionable information for responding to emerging pest threats? A case study of fall armyworm campaign in Zambia Open
The Fall Army Worm (FAW) radio campaign was implemented between November 2018 and April 2019 in key maize growing areas and locations with reported high severity of fall armyworm as identified by national stakeholders. We evaluated the eff…
View article: Is radio an effective method for delivering actionable information for responding to emerging pest threats? A case study of fall armyworm campaign in Zambia
Is radio an effective method for delivering actionable information for responding to emerging pest threats? A case study of fall armyworm campaign in Zambia Open
Background The Fall Army Worm (FAW) radio campaign was implemented between November 2018 and April 2019 in key maize growing areas and locations with reported high severity of fall armyworm as identified by national stakeholders. We evalua…
View article: Phylogenomics enables biogeographic analysis and a new subtribal classification of Andropogoneae (Poaceae—Panicoideae)
Phylogenomics enables biogeographic analysis and a new subtribal classification of Andropogoneae (Poaceae—Panicoideae) Open
The grass tribe Andropogoneae (Poaceae—Panicoideae) includes several important crops such as maize, sugarcane, and sorghum, and dominates the tropical grasslands of the world. We present here a plastome phylogeny of the tribe with the larg…
View article: Genetic structure and insecticide resistance characteristics of fall armyworm populations invading China
Genetic structure and insecticide resistance characteristics of fall armyworm populations invading China Open
The rapid wide‐scale spread of fall armyworm ( Spodoptera frugiperda ) has caused serious crop losses globally. However, differences in the genetic background of subpopulations and the mechanisms of rapid adaptation behind the invasion are…
View article: Data for Plastome phylogenomics enables biogeographic analysis and a new subtribal classification of the Andropogoneae (Poaceae – Panicoideae)
Data for Plastome phylogenomics enables biogeographic analysis and a new subtribal classification of the Andropogoneae (Poaceae – Panicoideae) Open
File is composed of four directories. Alignments Andropogoneae_Biogeo_Final_Alignment.fsa--Full plastome alignment. Andropogoneae_Biogeo_Final_Alignment_Gblocks.fsa--Gblocks alignment (gaps removed).BEAST2_Analysis Andropogoneae_Biogeo_25r…
View article: Toward an understanding of the systematics and evolution of the genus <i>Acrapex</i> Hampson, 1894 (Lepidoptera: Noctuidae: Apameini: Sesamiina): molecular phylogenetics of the genus and review of the species-rich <i>Acrapex aenigma</i> group
Toward an understanding of the systematics and evolution of the genus <i>Acrapex</i> Hampson, 1894 (Lepidoptera: Noctuidae: Apameini: Sesamiina): molecular phylogenetics of the genus and review of the species-rich <i>Acrapex aenigma</i> group Open
With a species count reaching almost 100 species, the genus Acrapex is the most diverse genus of sesamiine stemborers (Lepidoptera: Noctuidae: Noctuinae: Apameini: Sesamiina). Acrapex species are mostly distributed in the Afrotropics and c…
View article: High-depth resequencing reveals hybrid population and insecticide resistance characteristics of fall armyworm (<i>Spodoptera frugiperda</i>) invading China
High-depth resequencing reveals hybrid population and insecticide resistance characteristics of fall armyworm (<i>Spodoptera frugiperda</i>) invading China Open
The rapid wide-scale spread of fall armyworm ( Spodoptera frugiperda ) has caused serious crop losses globally. However, differences in the genetic background of subpopulations and the mechanisms of rapid adaptation behind the invasion are…
View article: Evidence Note Tomato leafminer (Tuta absoluta): Impacts and coping strategies for Africa
Evidence Note Tomato leafminer (Tuta absoluta): Impacts and coping strategies for Africa Open
The recently introduced tomato leafminer, Tuta absoluta, has become the most important pest constraint to tomato production in Africa.Spreading at an average 800 km/year, it is now present in 41 African countries.The socio-economic impacts…
View article: Farmer perception of fall armyworm (<i>Spodoptera frugiderda</i> J.E. Smith) and farm‐level management practices in Zambia
Farmer perception of fall armyworm (<i>Spodoptera frugiderda</i> J.E. Smith) and farm‐level management practices in Zambia Open
BACKGROUND This paper documents farmer perceptions and management practices for fall armyworm ( Spodoptera frugiderda J.E. Smith), providing a baseline for the development of sustainable pest management strategies. RESULTS 91% of farmers c…
View article: Updated phylogenetic and systematics of the <i>Acrapex albivena</i> Hampson, 1910 and <i>A. stygiata</i> (Hampson, 1910) species groups (Lepidoptera, Noctuidae, Noctuinae, Apameini, Sesamiina), with the description of nine new species from the Afrotropics
Updated phylogenetic and systematics of the <i>Acrapex albivena</i> Hampson, 1910 and <i>A. stygiata</i> (Hampson, 1910) species groups (Lepidoptera, Noctuidae, Noctuinae, Apameini, Sesamiina), with the description of nine new species from the Afrotropics Open
The genus Acrapex Hampson, 1891 (Lepidoptera, Noctuidae, Noctuinae, Apameini, Sesamiina) constitutes a speciose group of noctuid stemborers mostly distributed in the Afrotropics. In this study nine new Acrapex species are described: Acrape…
View article: Ancestry of the two subgenomes of maize
Ancestry of the two subgenomes of maize Open
Maize ( Zea mays ssp. mays ) is not only one of the world’s most important crops, but it also is a powerful tool for studies of genetics, genomics, and cytology. The genome of maize shows the unmistakable signature of an ancient hybridizat…
View article: Phylogenetic analysis and systematics of the Acrapex unicolora Hampson species complex (Lepidoptera, Noctuidae, Apameini), with the description of five new species from the Afrotropics
Phylogenetic analysis and systematics of the Acrapex unicolora Hampson species complex (Lepidoptera, Noctuidae, Apameini), with the description of five new species from the Afrotropics Open
Ten morphologically similar species of Acrapex Hampson, 1891 (Lepidoptera, Noctuidae, Noctuinae, Apameini) from Central and Eastern Africa are reviewed, including five new species: Acrapex kafula le Ru sp. nov., A. kavumba le Ru sp. nov., …