Agro-ecological options for fall armyworm (Spodoptera frugiperda JE Smith) management: Providing low-cost, smallholder friendly solutions to an invasive pest

Harrison, Rhett D.; Thierfelder, Christian; Baudron, Frédéric; Chinwada, Peter; Midega, Charles A. O.; Schaffner, Urs; Berg, Johnnie Van den

doi:10.1016/j.jenvman.2019.05.011

Cited by 273 publications

(257 citation statements)

References 125 publications

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“…In addition to careful monitoring of the maize crop, it is also strongly advised to ensure a generally healthy crop by considering soil health, fertilization, and even an appropriate number of plants per m 2 , which will help in reducing damage and yield loss, even in the case of severe FAW attack. It is also widely acknowledged that a number of cultural control methods would be important to reduce FAW incidence and the severity of attack [13].…”

Section: Discussionmentioning

confidence: 99%

“…Altogether, a strong need exists to identify alternative solutions for farmers that would be effective, affordable, in line with Integrated Pest Management (IPM), and tailored to suite the local conditions and farming practices in Africa [12][13][14]. It is obvious to consider the actions smallholder farmers in Central America and Mexico are taking, as they have been managing fall armyworm (FAW) successfully for hundreds of years, even though the differences in agricultural systems should be accounted for.…”

Section: Introductionmentioning

confidence: 99%

“…Intercropping maize with legumes (e.g., beans) may also reduce FAW damage, especially when beans are sown earlier than maize [16]. Push-pull approaches have been shown to reduce populations of FAW, in some cases substantially, under African conditions [16,17], and a recent review also mentioned sound fertilization, soil management, and habitat diversification as factors able to reduce FAW incidence [13]. However, these methods might not be feasible for all small holder farmers in SSA.…”

Section: Introductionmentioning

confidence: 99%

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The Efficacy of Alternative, Environmentally Friendly Plant Protection Measures for Control of Fall Armyworm, Spodoptera Frugiperda, in Maize

Babendreier

Agboyi²,

Beseh

et al. 2020

Insects

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The invasive fall armyworm (FAW) is threatening maize production and the livelihoods of millions of smallholder farmers in the newly invaded areas in Africa and Asia. To control this new key pest and to overcome health, environmental, and resistance problems related to the indiscriminate use of insecticides, effective and sustainable alternative pest control approaches are needed. Here, we report on field trials that tested maltodextrin, neem-based products, ash, and soil, as well as the locally produced alata samina soap, in the Upper West and Greater Accra regions, Ghana. Significant reductions of larval numbers and crop damage, together with increased yields, were mostly achieved by applying the insecticide emamectin benzoate, which was considered the positive control in this set of trials. However, high efficiency and cost–benefit ratios were also achieved with two neem-based products. Maltodextrin was only efficient at one of the two sites, with a clear dose-dependent effect, while the higher dosage was nearly as effective as emamectin benzoate. Due to its relatively high product cost, maltodextrin is generally less cost-efficient. Ash and soil, as well as alata samina soap treatments, did not efficiently reduce FAW larval numbers or crop damage at the dosages tested; thus, they also did not significantly increase maize yields.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Efficacy of Alternative, Environmentally Friendly Plant Protection Measures for Control of Fall Armyworm, Spodoptera Frugiperda, in Maize

Babendreier

Agboyi²,

Beseh

et al. 2020

Insects

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“…bifoveolatus, C. luteum and T. remus can reach high rates of parasitism opens possibilities for conservation biological control. Cultural practices are known to enhance the parasitism of crop pests and various agroecological options may be used against S. frugiperda, such as replacing synthetic insecticides by botanicals or biopesticides, considering intercropping and other habitat management methods, or planting field margins [59]. However, the effect of these practices on parasitism of S. frugiperda remains to be studied.…”

Section: Prospects For Biological Controlmentioning

confidence: 99%

Parasitoid Complex of Fall Armyworm, Spodoptera frugiperda, in Ghana and Benin

Agboyi¹,

Goergen

Beseh

et al. 2020

Insects

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The fall armyworm, Spodoptera frugiperda, a moth originating from the American continent, has recently invaded most African countries, where it is seriously threatening food security as a pest of cereals. The current management methods rely heavily on the use of synthetic insecticides but there is a need for more sustainable control methods, including biological control. Surveys were conducted in two West African countries, Ghana and Benin, to determine the native parasitoid complex and assess parasitism rates of S. frugiperda. Samples of S. frugiperda eggs and larvae were collected in maize fields located in 56 and 90 localities of Ghana and Benin, respectively, from July 2018 to July 2019. Ten species were found parasitizing the pest, including two egg parasitoids, one egg–larval, five larval and two larval–pupal parasitoids. The two most abundant parasitoids in both countries were two Braconidae: the egg-larval parasitoid Chelonus bifoveolatus and the larval parasitoid Coccygidum luteum. Parasitism rates were determined in three Ghanaian regions and averages varied from 0% to 75% between sites and from 5% to 38% between regions. These data provide an important baseline for the development of various biological control options. The two egg parasitoids, Telenomus remus and Trichogramma sp. can be used in augmentative biological control and investigations should be conducted to assess how cultural practices can enhance the action of the main parasitoids, C. luteum and Ch. bifoveolatus, in the field. Understanding the parasitoid complex of S. frugiperda in Africa is also necessary before any development of classical biological controls involving the introduction of parasitoids from the Americas.

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“…Smith); FAW] is currently the most damaging crop pest affecting maize in SSA, where it has spread very widely (ACAPS, 2017; Day et al., 2017; Kumela et al., 2019). It is a polyphagous (feeds on several hosts) and migratory (can spread to other countries) pest that survives on at least 80 plant species, including maize, wheat ( Triticum aestivum L.), sorghum [ Sorghum bicolor (L.) Moench], and rice ( Oryza sativa L.) (Harrison et al., 2019; Prasanna et al., 2018; Sibanda, 2017). In the past, the pest was mainly found in North and South America where it is the most important pest of maize (Hruska, 2019; Pannuti et al., 2016), but recently, its two strains, the rice strain (R‐strain) and the corn strain (C‐strain), invaded new territories in the tropical and subtropical African regions (Cock et al., 2017; FAO, 2019a; Fatoretto et al., 2017).…”

Section: Introductionmentioning

confidence: 99%

Fall‐armyworm invasion, control practices and resistance breeding in Sub‐Saharan Africa

Matova

Kamutando

Magorokosho³

et al. 2020

Crop Science

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Fall armyworm [Spodoptera frugiperda (J.E. Smith); FAW] invasion has exacerbated maize (Zea mays L.) crop yield losses in sub‐Saharan Africa (SSA), already threatened by other stresses, especially those that are climate‐change induced. The FAW is difficult to control, manage, or eradicate, because it is polyphagous and trans‐boundary, multiplies fast, has a short life cycle and migrates easily, and lacks the diapause growth phase. In this study, FAW and its impact in Africa was reviewed, as well as past and present control strategies for this pest. Pesticides, cultural practices, natural enemies, host‐plant resistance, integrated pest management (IPM), and plant breeding approaches were examined as possible control strategies. It was concluded that an IPM control strategy, guided by cultural approaches already being used by farmers, and what can be adopted from the Americas, coupled with an insect‐resistance management strategy, is the best option to manage this pest in Africa. These strategies will be strengthened by breeding for multi‐trait host‐plant resistance through stacking of genes for different modes of control of the pest.

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Agro-ecological options for fall armyworm (Spodoptera frugiperda JE Smith) management: Providing low-cost, smallholder friendly solutions to an invasive pest

Cited by 273 publications

References 125 publications

The Efficacy of Alternative, Environmentally Friendly Plant Protection Measures for Control of Fall Armyworm, Spodoptera Frugiperda, in Maize

The Efficacy of Alternative, Environmentally Friendly Plant Protection Measures for Control of Fall Armyworm, Spodoptera Frugiperda, in Maize

Parasitoid Complex of Fall Armyworm, Spodoptera frugiperda, in Ghana and Benin

Fall‐armyworm invasion, control practices and resistance breeding in Sub‐Saharan Africa

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