Correction: Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) in Cameroon: Case study on its distribution, damage, pesticide use, genetic differentiation and host plants

Spodoptera frugiperda (Lepidoptera: Noctuidae) is an invasive pest that ravaging crops in many provinces of China. In order to specifically control this invasive pest, understanding of the relationship between the insect and the host is necessary. In this study, we have compared the biological and nutritional indexes of S. frugiperda by feeding it with five different host-plants (Zea mays, Triticum aestivum, Digitaria sanguinalis, Glycine max and Eleusine indica). The biological and nutritional indexes of Z. mays feeding S. frugiperda were the best. However, the pupa weight and fecundity of S. frugiperda fed with G. max and E. indica were significantly lower than those fed with other hosts, efficiency of conversion of digested food (ECD) and efficiency of conversion of ingested food (ECI) were also lower than others. The total phenol content was negatively correlated with the biological and nutritional indexes of S. frugiperda, while the C/N content was positively correlated. When fed on different host plants, the biological and nutritional indexes of S. frugiperda were different, but all of them could complete the life cycle. Therefore, in the absence of Z. mays, the S. frugiperda may also harm other host plants, and host plants with high C/N content can also with the risk of being infected.

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Grapevine defoliation by Spodoptera frugiperda Smith, 1797 (Lepidoptera: Noctuidae) in Brazil

Ciência Rural ◽

10.1590/0103-8478cr20210168 ◽

2022 ◽

Vol 52 (7) ◽

Author(s):

Orcial Ceolin Bortolotto ◽

Aline Pomari-Fernandes ◽

Gilberto Rostirolla Batista de Souza

Keyword(s):

Spodoptera Frugiperda ◽

Host Plants ◽

Control Strategies ◽

Fall Armyworm ◽

First Occurrence ◽

Biological Aspects ◽

And Control ◽

Lepidoptera Noctuidae

ABSTRACT: The fall armyworm, Spodoptera frugiperda Smith, 1797 (Lepidoptera: Noctuidae), is a polyphagous pest that causes losses in several crops. The knowledge of host plants is essential for establishing management and control strategies. The present study reported the first occurrence of S. frugiperda in Brazilian grapevines. It is recommended that further studies should be carried out in the laboratory to understand the biological aspects of the damage to different structures (leaves and grapes). This information will be essential to assess the potential of S. frugiperda damage to vines.

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Preferable Host Plants of Fall Armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae) Larvae in Southern Punjab Pakistan under Laboratory Conditions

Indian Journal of Pure & Applied Biosciences ◽

10.18782/2582-2845.8698 ◽

2021 ◽

Vol 9 (3) ◽

pp. 156-160

Author(s):

Muhammad Ramzan ◽

Keyword(s):

Host Plant ◽

Spodoptera Frugiperda ◽

Host Plants ◽

Fall Armyworm ◽

Developmental Period ◽

Invasive Pest ◽

Larval Feeding ◽

Agricultural Crops ◽

The World ◽

Lepidoptera Noctuidae

Fall armyworm, Spodoptera frugiperda is considered an important noctuid moth pest of agricultural crops all over the world and recently become an invasive pest in Pakistan. The crops belonging to Asteraceae, Fabaceae and Poaceae families are highly affected with this pest. The description of host plants is very important in understanding the biology, ecology and application of most effective techniques against the pest. By keeping in view, the importance of this pest, the current study was conducted to evaluate the most preferable host plant such as maize, potato, cabbage, cotton and lehli for this pest in the study area. The results showed that cabbage and maize were the most suitable hosts for larval feeding. The incubation period was recorded 2.00 and 2.12 days on cabbage and maize, respectively. The developmental period of larvae was found longer on cabbage as compared to maize. Potato, cotton and lehli were not found suitable for pest rearing. The study concluded that maize and cabbage are the most suitable hosts for S. frugiperda larvae under natural and controlled conditions.

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Assessment of the Host Range of Fall Armyworm Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) in Manica Province, Mozambique

10.20944/preprints202101.0102.v1 ◽

2021 ◽

Author(s):

Albasini Caniço ◽

António Mexia ◽

Luisa Santos

Keyword(s):

Host Range ◽

Spodoptera Frugiperda ◽

Host Plants ◽

Insect Pest ◽

Fall Armyworm ◽

Maize Production ◽

Invasive Insect ◽

Cropping Season ◽

Polyphagous Insect ◽

Lepidoptera Noctuidae

The alien invasive insect pest Spodoptera frugiperda Smith (Lepidoptera: Noctuidae), commonly referred to as Fall Armyworm (FAW), is a polyphagous insect feeding on more than 350 host plants in addition to maize in its native habitat. Due to the voracious nature of FAW, significant yield losses on maize production were reported across the African continent since its detection in 2016. Despite being a polyphagous insect, little is known about its alternative host plants in the new habitat including Mozambique. This study aimed to assess the host range of FAW in the central province of Manica, Mozambique. A field survey was conducted from May to August 2019 (dry season of 2018/2019 cropping season) and in December 2019 and January 2020 (rainy season of 2019/2020 cropping season) in maize fields and crops often mixed with maize or located in the vicinity of maize fields. A total of 1291 fields were surveyed. In each field, 20 plants were selected in a “W” pattern and checked for the presence of FAW egg masses and/or larvae. At the time of the sampling, no evidence was found suggesting that in Manica province FAW feeds in crops other than maize because out of 35 different crops surveyed, FAW was only recorded on maize. Results from this study suggest that the strain of FAW occurring in Manica province might be the one specialized in maize or the continuous availability of maize fields throughout the year is influencing the choices of the host plants of this invasive insect pest.

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