Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of Kenya

Groote, Hugo De; Kimenju, Simon Chege; Munyua, Bernard; Palmas, Sebastian; Kassie, Menale; Bruce, Anani Y.

doi:10.1016/j.agee.2019.106804

Cited by 202 publications

(168 citation statements)

References 19 publications

Supporting

Mentioning

120

Contrasting

Unclassified

Order By: Relevance

“…The recent fall armyworm invasion in Africa and Asia is undoubtedly a major event in terms of pest management and food security in these continents. A number of publications have recently assessed the spread and impact of FAW, as well as farmer practices, in order to fight against the pest [7,28]. It is generally accepted that yield losses are massive, even though the few studies assessing yield losses from fields directly (e.g., Baudron et al [4]) have indicated less severe losses as compared to studies based on farmers' self-perception.…”

Section: Discussionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

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.

show abstract

Section: Discussionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

show abstract

“…S. frugiperda was firstly reported in Indonesia in early 2019 attacking a cornfield at the northern part of Sumatera Island (Nonci et al 2019) and now it has been spread in some other cornfield areas such as Lampung (Trisyono et al 2019) as well as the west part of Java (Maharani et al 2019) and Sulawesi (Nur Edy, Tadulako University, Personal communication). This pest insect has been reported causing significant yield losses on corn worldwide, for example, Brazil (34% of yield losses) (Lima et al 2009), Zimbabwe (11.57% of yield losses) (Baudron et al 2019), Kenya (more than 30% of yield losses) (Groote et al 2020) and India (33% of yield losses) (Balla et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Identification and genetic diversity of Spodoptera frugiperda in Lampung Province, Indonesia

et al. 2020

View full text Add to dashboard Cite

Abstract. Lestari P, Budiarti A, Fitriana Y, Susilo FX, Swibawa IG, Sudarsono H, Suharjo R, Hariri AM, Purnomo, Nuryasin, Solikhin, Wibowo L, Jumari, Hartaman M. 2020. Identification and genetic diversity of Spodoptera frugiperda in Lampung Province, Indonesia. Biodiversitas 21: 1670-1677. Spodoptera frugiperda is one of the most recent invasive and destructive insect pest in Indonesia. Recently, it has been reported that this pest was found in some cornfield areas in Sumatera, including Lampung. This research was performed to confirm the presence of S. frugiperda in Lampung Province by collecting and identifying larvae of Spodoptera found in the field as well as investigation on the genetic diversity of the established populations and to observe the damage caused by this pest on cornfields in the Lampung Province. The observation was conducted from February-April 2019 at four locations (districts) representing corn-producing areas in Lampung, namely Lampung Selatan, Lampung Timur, Pesawaran and Pringsewu, each location comprising five plots. The plot is a cornfield with plants aged 14-40 days after planting. Twenty plants were randomly chosen in every plot as plant samples to collect the Spodoptera larvae and to calculate the absolute plant damage caused by the larvae. The absolute plant damage was analyzed by dividing the attacked plants with total plants observed and multiply by 100%. Identification of the Spodoptera larvae was performed based on morphological characters and molecular techniques using sequence analysis of Cytochrome c Oxidase subunit I (COI) gene. The result confirmed that the larvae found in the cornfield in Lampung were S. frugiperda. There was no nucleotides variation in the sequence of COI gene among S. frugiperda found in Lampung Province (Lampung Selatan, Lampung Timur, Pesawaran and Pringsewu) as well as S. frugiperda that was found in corn from foreign countries. The absolute plant damage caused by this pest in the four districts of Lampung was in the range of 26.50-70%.

show abstract

“…In the field, we observed that most of the mixed fields were small-scale avocado and small-scale maize fields that are mixed with other crops like the common bean, banana, and macadamia. We speculate that the farmers intend to maximize the profit of their land by mixing the crops in the same piece of the land, particularly with the uncertainty in rainfall trend, and invasion of insect pests like the fall armyworm that could damage their maize crop [78]. High class-wise UA, PA, and F1-scores were observed in the mapping of monocropping patterns of avocado, coffee, tea, and pineapple.…”

Section: Discussionmentioning

confidence: 94%

Sophisticated Cropping Patterns Mapping in Kenya Using Vegetation Indices and Phenology from Sentinel-2 and Sentinel-1 Radar Backscatter Data

Aduvukha¹,

Abdel‐Rahman²,

Sichangi³

et al. 2020

Preprint

View full text Add to dashboard Cite

The proportion of area under various crops at a given point in time, known as a cropping pattern, plays an essential role in determining the level of agricultural production. In this study, cropping patterns of three sub-counties in Murang’a County, a typical African smallholder farming area in Kenya, were mapped. Specifically, we compared the performance of eight classification scenarios for mapping cropping patterns; namely using (i) only Sentinel-2 reflectance bands (S2), (ii) S2 and S2 derived vegetation indices (VIs); (iii) S2 and S2 vegetation phenology (VP); (iv) S2 and Sentinel-1 radar backscatter data (S1); (v) S2, VIs, and S1; (vi) S2, VP, and S1; (vii) S2, VIs and VP, and (viii) S2, VIs, VP and S1. Reference data of the dominant cropping patterns and non-croplands were collected. The guided regularized random forest (GRRF) algorithm was used to select the optimum variables and to perform the respective classification for each scenario. The most accurate result of the overall accuracy of 93.16% was attained from the scenario (viii) S2, VIs, VP, and S1. The McNemar’s test of significance did not show significant differences (p≤0.05) among the tested scenarios. Our study demonstrated the strength of GRRF and the synergetic advantage of S2 and S1 derivatives to map cropping patterns in a heterogeneous landscape where high resolution imagery are inaccessible. Our cropping pattern mapping approach can be used in other sites of relatively similar agro-ecological conditions.

show abstract

Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of Kenya

Cited by 202 publications

References 19 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

Identification and genetic diversity of Spodoptera frugiperda in Lampung Province, Indonesia

Sophisticated Cropping Patterns Mapping in Kenya Using Vegetation Indices and Phenology from Sentinel-2 and Sentinel-1 Radar Backscatter Data

Contact Info

Product

Resources

About