Crop injury and yield losses in maize by the African maize stem borer, <i>Busseola fusca</i> (fuller) (lepidoptera: Noctuidae) in Southern Ethiopia

Taddele, Abrham; Azerefegne, Ferdu; Beyene, Yibrah

doi:10.1080/09670874.2020.1861360

Cited by 2 publications

(2 citation statements)

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“…Among the biotic factors, lepidopteran pests such as native stemborer species, Sesamia calamistis Hampson and Busseola fusca (Fuller) (both Lepidoptera: Noctuidae), and invasive stemborer, Chilo partellus (Swinhoe) (Lepidoptera: Crambidae), are major pests of maize. [1][2][3][4] For example, maize yield losses due to infestation by these pests has been estimated to be 12.9% in Kenya 5 and up to 50% in Mozambique. 6 The invasion of the African continent by the fall armyworm, Spodoptera frugiperda (J.E.…”

Section: Introductionmentioning

confidence: 99%

“…The production of maize, Zea mays L. (Poaceae) in sub‐Saharan Africa is hampered by a myriad of biotic and abiotic challenges. Among the biotic factors, lepidopteran pests such as native stemborer species, Sesamia calamistis Hampson and Busseola fusca (Fuller) (both Lepidoptera: Noctuidae), and invasive stemborer, Chilo partellus (Swinhoe) (Lepidoptera: Crambidae), are major pests of maize 1–4 . For example, maize yield losses due to infestation by these pests has been estimated to be 12.9% in Kenya 5 and up to 50% in Mozambique 6 .…”

Section: Introductionmentioning

confidence: 99%

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Old and new association of Cotesia icipe (Hymenoptera: Braconidae) with alien invasive and native Spodoptera species and key stemborer species: implication for their management

Obala,

Mohamed,

Magomere

et al. 2023

Pest Management Science

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BACKGROUNDMaize production in Africa is hindered by a myriad of biotic challenges, key among them being invasive and native lepidopteran stemborers. Recent invasion of the continent by fall armyworm, Spodoptera frugiperda, has further exacerbated the situation. Fortunately, Cotesia icipe was found to be very promising against S. frugiperda. However, the co‐occurrence and interaction between S. frugiperda and the stemborers (Busseola fusca, Sesamia calamistis, and Chilo partellus) in maize agroecosystem may jeopardize the efficiency of C. icipe as a biocontrol agent of S. frugiperda. This study investigated the performance of C. icipe on S. frugiperda, Spodoptera littoralis and the stemborers. Specifically, the preference and acceptability of C. icipe to the host insects, the physiological suitability of the hosts for its development, and the effect of these hosts on the fitness parameters of the offspring were assessed.RESULTSCotesia icipe accepted all the tested hosts, albeit with higher preference for Spodoptera species than for stemborers under multiple‐choice tests. Also, the highest parasitism of up to 97% was recorded on S. frugiperda compared with parasitism on the stemborers of 43% in B. fusca. Moreover, physiological suitability and fitness traits (except for per cent female offspring) varied with host species, again being optimal on Spodoptera species.CONCLUSIONCotesia icipe demonstrated strong potential to control S. frugiperda in maize due to its high affinity for parasitization and developmental success in this host; and despite its non‐specific parasitization, the presence of other hosts may not prevent its maximum control of S. frugiperda. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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