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Degaga AH, Degaga EG. Natural Enemies of the fall armyworm ( Spodoptera frugiperda Smith) and comparing Neem aqueous extracts with its larvae, Gurage zone, central Ethiopia. Heliyon 2024; 10:e32083. [PMID: 38912443 PMCID: PMC11190549 DOI: 10.1016/j.heliyon.2024.e32083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/24/2024] [Accepted: 05/28/2024] [Indexed: 06/25/2024] Open
Abstract
The fall armyworm (Spodoptera frugiperda Smith) is an invasive and polyphagous insect pest. It poses a significant threat to maize crops, uncontrolled infestation can result 100 % loss. However, natural enemies play a vital role in regulating the population of this pest. Additionally, botanical sources extracts have the potential to be effective insecticides. The objectives of the study were to investigate the natural enemies of S. frugiperda in the Gurage zone and to compare efficacy of Neem seed and leaf aqueous extracts with S. frugiperda larvae, central Ethiopia. S. frugiperda larvae and egg masses, cocoons and larvae cadavers collected from infested maze farms. From each round collection 25 healthy and inactive larvae were sampled to rear until emerging adults. Observed predator species recorded. Neem seed and leaf aqueous extracts was tested against S. frugiperda in laboratory condition. The study found a diverse range of natural enemies associated with S. frugiperda, including parasitoids, predators, and entomopathogenic fungi. Three species of parasitoids (Exorista xanthaspis, Tachina spp., and Charops annulipes) were documented in Ethiopia for the first time. Predatory insects belonging to four distinct orders: Hemiptera, Dermaptera, Coleoptera, and Mantodea also identified. In particular, various Hemipterans were observed in the maize farms infested with S. frugiperda. In terms of Neem seed and leaf aqueous extracts, they demonstrated similar mortality rates for S. frugiperda larvae after 72 h, although differences were observed at 24 and 48 h. For effective management of S. frugiperda, more research is needed to fully exploit the potential of natural enemies and botanical source insecticides.
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Affiliation(s)
- Abera Hailu Degaga
- Department of Zoological Sciences, College of Natural and Computational Sciences, Addis Ababa University, P. O. Box 1176, Addis Ababa, Ethiopia
| | - Emana Getu Degaga
- Department of Zoological Sciences, College of Natural and Computational Sciences, Addis Ababa University, P. O. Box 1176, Addis Ababa, Ethiopia
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Chipabika G, Sohati PH, Khamis FM, Chikoti PC, Copeland R, Ombura L, Kachapulula PW, Tonga TK, Niassy S, Sevgan S. Abundance, diversity and richness of natural enemies of the fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), in Zambia. FRONTIERS IN INSECT SCIENCE 2023; 3:1091084. [PMID: 38469517 PMCID: PMC10926438 DOI: 10.3389/finsc.2023.1091084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 06/26/2023] [Indexed: 03/13/2024]
Abstract
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 in three Agroecological regions (AERs I, II, and III) to identify those that could potentially serve as bio-control agents. Sampling of FAW parasitoids and predators was done along trunk roads at intervals of 10 km. Molecular sequence analysis and morphological characterization were used to identify natural enemies. Over 11 species of FAW natural enemies, including egg, egg-larval, and larval parasitoids, and predators, were identified in Zambia. The mean number of natural enemies and species richness was higher in AER I and IIa. Consequently, egg parasitism was highest in those two regions, at 24.5% and 12.2%, respectively. Larvae parasitism was highest in AER I (4.8%) and AER III (1.9), although no significant differences were observed. The most abundant and widely distributed parasitoid was Drino sp. (Diptera: Tachinidae), while Rhynocoris segmentarius (Germar) (Hemiptera: Reduviidae) and Belanogaster sp. (Hymenoptera: Vespidae) were the most prevalent predators. Our study reveals the presence of two natural enemies belonging to the genus Tiphia and Micromeriella, uncommon to FAW. Significant differences in the number of parasitoids were observed in polycropping, with the highest recovery of 12 ± 10% from maize + cowpeas + pumpkin and watermelon mixed cropping. The higher the rainfall, the lower the number of natural enemies recorded. Variations in rainfall patterns which affect FAW availability, cropping systems and the three AERs may explain natural enemies' species diversity in Zambia. The information provided in this study can aid the development of a national biological control programme for sustainable management of fall armyworm.
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Affiliation(s)
- Gilson Chipabika
- School of Agricultural Sciences, Department of Plant Science, University of Zambia, Lusaka, Zambia
| | - Philemon H. Sohati
- School of Agricultural Sciences, Department of Plant Science, University of Zambia, Lusaka, Zambia
| | - Fathiya Mbarak Khamis
- Department of Plant health, International Centre of Insect Physiology and Ecology, Nairobi, Kenya
| | - Patrick C. Chikoti
- Plant Protection Division, Zambia Agriculture Research Institute, Mount Makulu Research Station, Lusaka, Zambia
| | - Robert Copeland
- Department of Plant health, International Centre of Insect Physiology and Ecology, Nairobi, Kenya
| | - Levi Ombura
- Department of Plant health, International Centre of Insect Physiology and Ecology, Nairobi, Kenya
| | - Paul W. Kachapulula
- School of Agricultural Sciences, Department of Plant Science, University of Zambia, Lusaka, Zambia
| | - Tamara K. Tonga
- School of Agricultural Sciences, Department of Plant Science, University of Zambia, Lusaka, Zambia
| | - Saliou Niassy
- Department of Plant health, International Centre of Insect Physiology and Ecology, Nairobi, Kenya
| | - Subramanian Sevgan
- Department of Plant health, International Centre of Insect Physiology and Ecology, Nairobi, Kenya
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Chisonga C, Chipabika G, Sohati PH, Harrison RD. Understanding the impact of fall armyworm (Spodoptera frugiperda J. E. Smith) leaf damage on maize yields. PLoS One 2023; 18:e0279138. [PMID: 37307270 DOI: 10.1371/journal.pone.0279138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 05/25/2023] [Indexed: 06/14/2023] Open
Abstract
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 the impacts of a pest on yields is fundamental to developing Integrated Pest Management (IPM) approaches. Hence, working with an early maturing, medium maturing and late maturing variety, we inoculated maize plants with 2nd instar S. frugiperda larvae at V5, V8, V12, VT and R1 growth stages to investigate the effects of FAW induced damage on yield. Different plants were inoculated 0-3 times and larvae were removed after 1 or 2 weeks to generate a wide range of damage profiles. We scored plants for leaf damage at 3, 5 and 7 weeks after emergence (WAE) using the 9 point Davis scale. While at harvest we assessed ear damage (1-9 scale), and recorded plant height and grain yield per plant. We used Structural Equation Models to assess the direct effects of leaf damage on yield and indirect effects via plant height. For the early and medium maturing varieties leaf damage at 3 and 5 WAE, respectively, had significant negative linear effects on grain yield. In the late maturing variety, leaf damage at 7 WAE had an indirect effect on yield through a significant negative linear effect on plant height. However, despite the controlled screenhouse conditions, in all three varieties leaf damage explained less than 3% of the variation in yield at the plant level. Overall, these results indicate that S. frugiperda induced leaf damage has a slight but detectable impact on yield at a specific plant developmental stage, and our models will contribute to the development of decision-support tools for IPM. However, given the low average yields obtained by smallholders in sub-Saharan Africa and the relatively low levels of FAW induced leaf damage recorded in most areas, IPM strategies should focus on interventions aimed at improving plant vigour (e.g. through integrated soil fertility management) and the role of natural enemies, as these are likely to result in greater yield gains at lower cost than a focus on FAW control.
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Affiliation(s)
- Chipo Chisonga
- CIFOR-ICRAF, Zambia Office, St Eugene Office Park, Lusaka, Zambia
- Department of Plant Science, School of Agriculture Sciences, University of Zambia, Lusaka, Zambia
| | - Gilson Chipabika
- Department of Plant Science, School of Agriculture Sciences, University of Zambia, Lusaka, Zambia
| | - Philemon H Sohati
- Department of Plant Science, School of Agriculture Sciences, University of Zambia, Lusaka, Zambia
| | - Rhett D Harrison
- CIFOR-ICRAF, Zambia Office, St Eugene Office Park, Lusaka, Zambia
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Lin HY, Lu CD, Chen ZH, Zhou YJ, Liang Y, Chen H, Liang GH. A survey on pupae parasitoid species of Dendrolimushoui (Lajonquiere) (Lepidoptera, Lasiocampidae) in China. Biodivers Data J 2023; 11:e97878. [PMID: 38327330 PMCID: PMC10848827 DOI: 10.3897/bdj.11.e97878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 03/19/2023] [Indexed: 03/29/2023] Open
Abstract
Cryptomeriajaponicavar.sinensis Miquel in south China is currently overwhelmingly infested by a native caterpillar species, Dendrolimushoui (Lepidoptera), which is causing severe economic losses and ecological disasters in both planted and natural forests. Our results include report of five parasitoid species and eight parasitoid flies within D.houi and a dominant endoparasitoid species Kriechbaumerelladendrolimi, which attacks pupae of D.houi with a high parasitism rate. This result might be helpful to improve better identification and application in the future for potential biological control of D.houi in the forests of east Asia.
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Affiliation(s)
- Hao yu Lin
- Fujian Agriculture and Forestry University, Fuzhou, ChinaFujian Agriculture and Forestry UniversityFuzhouChina
- South China Agricultural University, Guangzhou, ChinaSouth China Agricultural UniversityGuangzhouChina
| | - Ci ding Lu
- Fujian Agriculture and Forestry University, Fuzhou, ChinaFujian Agriculture and Forestry UniversityFuzhouChina
| | - Zheng hao Chen
- Fujian Agriculture and Forestry University, Fuzhou, ChinaFujian Agriculture and Forestry UniversityFuzhouChina
| | - You jun Zhou
- Fujian Agriculture and Forestry University, Fuzhou, ChinaFujian Agriculture and Forestry UniversityFuzhouChina
| | - Yun Liang
- Fujian Agriculture and Forestry University, Fuzhou, ChinaFujian Agriculture and Forestry UniversityFuzhouChina
| | - Hui Chen
- South China Agricultural University, Guangzhou, ChinaSouth China Agricultural UniversityGuangzhouChina
| | - Guang hong Liang
- Fujian Agriculture and Forestry University, Fuzhou, ChinaFujian Agriculture and Forestry UniversityFuzhouChina
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Tepa-Yotto GT, Chinwada P, Rwomushana I, Goergen G, Subramanian S. Integrated management of Spodoptera frugiperda 6 years post detection in Africa: a review. CURRENT OPINION IN INSECT SCIENCE 2022; 52:100928. [PMID: 35534003 DOI: 10.1016/j.cois.2022.100928] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 05/28/2023]
Abstract
The introduction of fall armyworm (FAW) Spodoptera frugiperda (JE Smith) (Lepidoptera: Noctuidae) on the African continent has led to paradigm shifts in pest control in maize systems, occasioned by year-round populations. The discovery of resident parasitoid species adapting to the new pest significantly informed decision-making toward avoiding highly hazardous synthetic insecticides to control the pest. A number of biopesticides have shown promise against the fall armyworm, providing a new arsenal for the sustainable management of this invasive pest. However, a few knowledge gaps remain for a fully integrated and sustainable FAW-management approach, particularly on host-resistance potential.
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Affiliation(s)
- Ghislain T Tepa-Yotto
- Biorisk Management Facility (BIMAF), International Institute of Tropical Agriculture (IITA-Benin), Cotonou, Benin; Ecole de Gestion et de Production Végétale et Semencière (EGPVS), Université Nationale d'Agriculture (UNA), Kétou, Benin.
| | - Peter Chinwada
- International Institute of Tropical Agriculture (IITA-Zambia), Lusaka, Zambia
| | - Ivan Rwomushana
- Centre for Agriculture and Bioscience International, Limuru Road, Muthaiga, PO Box 633-00621, Nairobi, Kenya
| | - Georg Goergen
- Biorisk Management Facility (BIMAF), International Institute of Tropical Agriculture (IITA-Benin), Cotonou, Benin
| | - Sevgan Subramanian
- Plant Health Theme, International Centre of Insect Physiology and Ecology (icipe), Nairobi 30772-00100, Kenya
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Paredes-Sánchez FA, Rivera G, Bocanegra-García V, Martínez-Padrón HY, Berrones-Morales M, Niño-García N, Herrera-Mayorga V. Advances in Control Strategies against Spodoptera frugiperda. A Review. Molecules 2021; 26:molecules26185587. [PMID: 34577058 PMCID: PMC8471127 DOI: 10.3390/molecules26185587] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/06/2021] [Accepted: 09/09/2021] [Indexed: 11/24/2022] Open
Abstract
The strategies for controlling the insect pest Spodoptera frugiperda have been developing over the past four decades; however, the insecticide resistance and the remarkable adaptability of this insect have hindered its success. This review first analyzes the different chemical compounds currently available and the most promising options to control S. frugiperda. Then, we analyze the metabolites obtained from plant extracts with antifeedant, repellent, insecticide, or ovicide effects that could be environmentally friendly options for developing botanical S. frugiperda insecticides. Subsequently, we analyze the biological control based on the use of bacteria, viruses, fungi, and parasitoids against this pest. Finally, the use of sex pheromones to monitor this pest is analyzed. The advances reviewed could provide a wide panorama to guide the search for new pesticidal strategies but focused on environmental sustainability against S. frugiperda.
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Affiliation(s)
- Francisco A. Paredes-Sánchez
- Unidad Académica Multidisciplinaria Mante, Universidad Autónoma de Tamaulipas, El Mante 89840, Tamaulipas, Mexico; (F.A.P.-S.); (M.B.-M.); (N.N.-G.)
| | - Gildardo Rivera
- Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Tamaulipas, Mexico; (G.R.); (V.B.-G.)
| | - Virgilio Bocanegra-García
- Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Reynosa 88710, Tamaulipas, Mexico; (G.R.); (V.B.-G.)
| | - Hadassa Y. Martínez-Padrón
- Subdirección de Enseñanza e Investigación, Hospital Regional de Alta Especialidad de Ciudad Victoria “Bicentenario 2010”, Cd. Victoria 87087, Tamaulipas, Mexico;
| | - Martín Berrones-Morales
- Unidad Académica Multidisciplinaria Mante, Universidad Autónoma de Tamaulipas, El Mante 89840, Tamaulipas, Mexico; (F.A.P.-S.); (M.B.-M.); (N.N.-G.)
| | - Nohemí Niño-García
- Unidad Académica Multidisciplinaria Mante, Universidad Autónoma de Tamaulipas, El Mante 89840, Tamaulipas, Mexico; (F.A.P.-S.); (M.B.-M.); (N.N.-G.)
| | - Verónica Herrera-Mayorga
- Unidad Académica Multidisciplinaria Mante, Universidad Autónoma de Tamaulipas, El Mante 89840, Tamaulipas, Mexico; (F.A.P.-S.); (M.B.-M.); (N.N.-G.)
- Correspondence: ; Tel.: +52-(492)-909-3646
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Abang AF, Nanga SN, Fotso Kuate A, Kouebou C, Suh C, Masso C, Saethre MG, Fiaboe KKM. Natural Enemies of Fall Armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae) in Different Agro-Ecologies. INSECTS 2021; 12:insects12060509. [PMID: 34072988 PMCID: PMC8227933 DOI: 10.3390/insects12060509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 11/16/2022]
Abstract
Fall armyworm (FAW) Spodoptera frugiperda (J.E. Smith) and southern armyworm (SAW) Spodoptera eridania (Stoll) have become major threats to crops in Africa since 2016. African governments adopted emergency actions around chemical insecticides, with limited efforts to assess the richness or roles of indigenous natural enemies. Field surveys and laboratory studies were conducted to identify and assess the performance of parasitoids associated with spodopterans in Cameroon. FAW was the most abundant spodopteran pest. Telenomus remus (Nixon), Trichogramma chilonis (Ishi), Charops sp. (Szépligeti), Coccygidium luteum (Cameron), Cotesia icipe (Fernandez & Fiaboe), and Cotesia sesamiae (Cameron) are the first records in the country on spodopterans. Telenomus remus, T. chilonis, C. icipe, and Charops sp. were obtained from both FAW and SAW; C. luteum and C. sesamiae from FAW. The distribution of spodopterans, their endoparasitoids, and parasitism rates varied with host, season and location. In the laboratory, T. remus showed significantly higher parasitism on FAW than SAW, and significant differences in the development parameters between the two host eggs, with shorter development time on FAW. It induced significant non-reproductive mortality on FAW but not on SAW. Developmental parameters showed that C. icipe has a shorter development time compared to other larval parasitoids. Implications for conservative and augmentative biocontrol are discussed.
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Affiliation(s)
- Albert Fomumbod Abang
- IPM Unit, International Institute of Tropical Agriculture (IITA), P.O. Box 2008 Messa, Yaoundé, Cameroon; (A.F.A.); (S.N.N.); (C.M.); (K.K.M.F.)
| | - Samuel Nanga Nanga
- IPM Unit, International Institute of Tropical Agriculture (IITA), P.O. Box 2008 Messa, Yaoundé, Cameroon; (A.F.A.); (S.N.N.); (C.M.); (K.K.M.F.)
| | - Apollin Fotso Kuate
- IPM Unit, International Institute of Tropical Agriculture (IITA), P.O. Box 2008 Messa, Yaoundé, Cameroon; (A.F.A.); (S.N.N.); (C.M.); (K.K.M.F.)
- Correspondence: ; Tel.: +237-675265715
| | - Christiant Kouebou
- Agricultural Investment and Market Development Project (PIDMA), MINADER, Yaoundé, Cameroon;
- Institute of Agricultural Research for Development (IRAD), P.O. Box 2123, Yaoundé, Cameroon;
| | - Christopher Suh
- Institute of Agricultural Research for Development (IRAD), P.O. Box 2123, Yaoundé, Cameroon;
| | - Cargele Masso
- IPM Unit, International Institute of Tropical Agriculture (IITA), P.O. Box 2008 Messa, Yaoundé, Cameroon; (A.F.A.); (S.N.N.); (C.M.); (K.K.M.F.)
| | - May-Guri Saethre
- International Institute of Tropical Agriculture (IITA), R4D Directorate, PMB 5320, Oyo Road, Ibadan 200001, Oyo State, Nigeria;
- Norwegian Agency for Development Cooperation, Bygdøy allé 2, 0257 Oslo, Norway
| | - Komi Kouma Mokpokpo Fiaboe
- IPM Unit, International Institute of Tropical Agriculture (IITA), P.O. Box 2008 Messa, Yaoundé, Cameroon; (A.F.A.); (S.N.N.); (C.M.); (K.K.M.F.)
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Otim MH, Adumo Aropet S, Opio M, Kanyesigye D, Nakelet Opolot H, Tek Tay W. Parasitoid Distribution and Parasitism of the Fall Armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae) in Different Maize Producing Regions of Uganda. INSECTS 2021; 12:insects12020121. [PMID: 33573080 PMCID: PMC7912086 DOI: 10.3390/insects12020121] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/18/2021] [Accepted: 01/23/2021] [Indexed: 02/06/2023]
Abstract
The fall armyworm (FAW) Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) has successfully invaded Africa, where it has significantly impacted maize and sorghum production. Management of FAW in Africa predominantly relies on synthetic insecticides, which are expensive, and negatively impact the environment and beneficial insects. We, therefore, conducted field surveys in Uganda in 2017 and 2019 to identify egg and larval parasitoids of FAW for possible use in integrated pest management (IPM) programs. Parasitoids were identified by their mitochondrial DNA cytochrome c oxidase subunit 1 (mtCOI) gene sequences. We identified 13 parasitoid species belonging to three families of Hymenoptera: Platygastridae, Braconidae and Ichneumonidae, as well as one Dipteran family (Tachinidae). Coccygidium spp. and Chelonus bifoveolatus were the most abundant and widely distributed parasitoids. Overall, parasitism averaged 9.2% and ranged from 3.1% to 50% in 2017, and 0.8% to 33% in 2019. Parasitism by Sturmiopsis parasitica, Diolcogaster sp., and Cotesia flavipes on FAW in maize crops are reported for the first time. Our results suggest high biological diversity of FAW parasitoids, which should be exploited in the IPM of the FAW in Uganda.
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Affiliation(s)
- Michael Hilary Otim
- National Crops Resources Research Institute (NaCRRI), Kampala P.O. Box 7084, Uganda; (S.A.A.); (M.O.); (D.K.)
- Correspondence: or
| | - Stella Adumo Aropet
- National Crops Resources Research Institute (NaCRRI), Kampala P.O. Box 7084, Uganda; (S.A.A.); (M.O.); (D.K.)
| | - Moses Opio
- National Crops Resources Research Institute (NaCRRI), Kampala P.O. Box 7084, Uganda; (S.A.A.); (M.O.); (D.K.)
| | - Dalton Kanyesigye
- National Crops Resources Research Institute (NaCRRI), Kampala P.O. Box 7084, Uganda; (S.A.A.); (M.O.); (D.K.)
| | - Henry Nakelet Opolot
- Ministry of Agriculture, Animal Industry and Fisheries, Entebbe P.O. Box 102, Uganda;
| | - Wee Tek Tay
- Black Mountain Laboratories, Clunies Ross Street, Commonwealth Scientific and Industrial Research Organisation, Canberra 2601, Australia;
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