Simulation of Fall Armyworm (Spodoptera frugiperda) Attacks and the Compensative Response of Quality Protein Maize (Zea mays, var. Mudishi-1 and Mudishi-3) in Southwestern DR Congo

Tshiabukole, Jean Pierre Kabongo; Khonde, Gertrude Pongi; Phongo, André Matondo; Ngoma, Nlandu; Kankolongo, Amand Mbuya; Vumilia, Roger Kizungu; Djamba, Antoine Mumba

doi:10.4236/oalib.1107217

Cited by 4 publications

(1 citation statement)

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“…During their development, the seedlings were not treated with protection products. The growth stage of plants used was V3 [18] [19]. Then the leaves were cut and sprayed with the products to be tested (20 repetitions for each control and treated compound) to the point of dripping using manual sprayers under a hood.…”

Section: Semi-field Assay Designmentioning

confidence: 99%

A Semi-Field Approach to Testing Botanical Insecticides. Effects of Natural and Analogues Annonaceous Acetogenins on <i>Spodoptera frugiperda</i> Smith (Lepidoptera: Noctuidae)

Hidalgo¹,

Murúa²,

Neske³

2021

JACEN

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Annonaceous acetogenins enclose a large number of biological activities, among which the insecticidal stands out. Spodoptera frugiperda is a pest that affects corn crops among others and has a great capacity to develop resistance to traditional insecticides, which represents sufficient reasons for the search for new alternatives for their control. The objective of this study was to determine the appropriate concentration and screening new natural insecticides against second instar larvae of S. frugiperda, under glasshouse conditions on Zea mays L. Natural products such as annonaceous acetogenins and some acetylated and methoxy methylated ACG derivatives and the commercial product Lambda-cyhalotrin (LC) were evaluated. The percent mortalities of S. frugiperda larvae in glasshouse conditions were recorded after 24, 48 and 72 h of treatment application. The results showed that the acetogenins tested were significantly (P < 0.05) different in relation to pest mortality than untreated check. After 72 h of treatment application the highest percent mortalities were obtained with the mixture of two natural products, rolliniastatin-2 (5) (100 μg/mL) + squamocin (6) (100 μg/mL) + LC (50 μg/mL) that proved the most effective and gave (100%), while rolliniastatin-2 (5) at 100 μg/mL alone, gave lowest percent mortality (65%), followed by squamocin (6) at 100 μg/mL (55%) and LC at 50 μg/mL (30%). The acetylated and methoxy methylated ACGs derivatives caused very low mortality (25% -35%). It is recommended the mixture as a management option of S. frugiperda as a component of integrated pest management. The results allow us to infer that the addition of How to cite this paper:

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Section: Semi-field Assay Designmentioning

confidence: 99%

A Semi-Field Approach to Testing Botanical Insecticides. Effects of Natural and Analogues Annonaceous Acetogenins on <i>Spodoptera frugiperda</i> Smith (Lepidoptera: Noctuidae)

Hidalgo¹,

Murúa²,

Neske³

2021

JACEN

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Maize yield and Fall armyworm damage responses to genotype and sowing date-associated variations in weather conditions

Tabu,

Kankolongo,

Lubobo

et al. 2024

European Journal of Agronomy

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Impact of Spodoptera frugiperda (Lepidoptera: Noctuidae), on maize yield in humid tropical zones of Central Africa

Agbodzavu,

Nanga Nanga,

Abang

et al. 2024

Journal of Economic Entomology

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Fall armyworm, Spodoptera frugiperda Smith, became the most important maize pest in Africa in 2016, with management based on chemical pesticides. High yield losses across the continent were predicted based on farmers’ perceptions, but existing agroecological differences were not considered. In the Democratic Republic of Congo, experiments were conducted to assess fall armyworm damage and yield losses in maize farms with and without treatment. The study included 2 seasons in the Kipopo wetland in 2020 and 2021, one rainy season in Kanyameshi in 2021, 2 rainy seasons in Mulungu in 2020 and 2021, and one season in a wetland on the Bishibiru site in 2020. In addition, the research was also conducted at 4 sites in Cameroon from September to December 2020 and from March to July 2021. High levels of damage incidences were recorded, but the density of larvae per plant was low, with low to moderate levels of damage severities in different seasons and sites. Treatment significantly reduced the number of fall armyworm larvae and their damage severity. However, the high infestation levels did not significantly reduce yield. Cost–benefit ratios were either negative or, in most cases, less than 1. In the best case, the use of pesticides only allowed the recovery of the amount used for the intervention. We discussed the implications of these findings for fall armyworm management in humid tropical agroecology.

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Simulation of Fall Armyworm (Spodoptera frugiperda) Attacks and the Compensative Response of Quality Protein Maize (Zea mays, var. Mudishi-1 and Mudishi-3) in Southwestern DR Congo

Cited by 4 publications

References 0 publications

A Semi-Field Approach to Testing Botanical Insecticides. Effects of Natural and Analogues Annonaceous Acetogenins on <i>Spodoptera frugiperda</i> Smith (Lepidoptera: Noctuidae)

A Semi-Field Approach to Testing Botanical Insecticides. Effects of Natural and Analogues Annonaceous Acetogenins on <i>Spodoptera frugiperda</i> Smith (Lepidoptera: Noctuidae)

Maize yield and Fall armyworm damage responses to genotype and sowing date-associated variations in weather conditions

Impact of Spodoptera frugiperda (Lepidoptera: Noctuidae), on maize yield in humid tropical zones of Central Africa

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Simulation of Fall Armyworm (Spodoptera frugiperda) Attacks and the Compensative Response of Quality Protein Maize (Zea mays, var. Mudishi-1 and Mudishi-3) in Southwestern DR Congo

Cited by 4 publications

References 0 publications

A Semi-Field Approach to Testing Botanical Insecticides. Effects of Natural and Analogues Annonaceous Acetogenins on &lt;i&gt;Spodoptera frugiperda&lt;/i&gt; Smith (Lepidoptera: Noctuidae)

A Semi-Field Approach to Testing Botanical Insecticides. Effects of Natural and Analogues Annonaceous Acetogenins on &lt;i&gt;Spodoptera frugiperda&lt;/i&gt; Smith (Lepidoptera: Noctuidae)

Maize yield and Fall armyworm damage responses to genotype and sowing date-associated variations in weather conditions

Impact of Spodoptera frugiperda (Lepidoptera: Noctuidae), on maize yield in humid tropical zones of Central Africa

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A Semi-Field Approach to Testing Botanical Insecticides. Effects of Natural and Analogues Annonaceous Acetogenins on <i>Spodoptera frugiperda</i> Smith (Lepidoptera: Noctuidae)

A Semi-Field Approach to Testing Botanical Insecticides. Effects of Natural and Analogues Annonaceous Acetogenins on <i>Spodoptera frugiperda</i> Smith (Lepidoptera: Noctuidae)