Analysis of Potential Distribution of Spodoptera Frugiperda In Northwest

Li, Chao; Liao, Jianghua; Ya, Yuke; Liu, Juan; Li, Jun; Yu, Gang

doi:10.21203/rs.3.rs-1154283/v1

Cited by 4 publications

(4 citation statements)

References 7 publications

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“…Hama Spodoptera frugiperda merupakan salah satu hama penting pada tanaman jagung (De Grootea, 2020;Li et al 2021). Gejala serangan awal akibat ulat grayak yaitu terlihat pada daun yaitu mnculnya gigitan halus larva berbentuk seperti jendela transparan yang memanjang yang bentuknya bervariasi dari kecil sampai kagak memanjang di permukaan daun.…”

Section: Hama Spodoptera Frugiperdaunclassified

The Potential Of Army Worm Spodoptera frugiperda J.E. Smith, Control On Corn Plant Using Sex Pheromones

Mamahit,

Pakasi,

Rompas

et al. 2022

JAT

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The fall armyworm Spodoptera frugiperda J. E. Smith is an invasive pest of maize in Indonesia. The fall armyworm is a polyphagous pest originating from North America which was first discovered in West Africa. This pest control is very difficult because farmers are generally focused on the use of pesticides. For this reason, the method of using sex pheromones is an environmentally friendly alternative for controlling fall armyworm S. frugiperda pests. Innovation in the use of sex pheromones to act as attractants, mating disruption and mass trapping for controlling S. frugiperda pests. Keywords: pheromone, fall armyworm, Spodoptera frugiperda, corn Abstrak Ulat grayak tanaman jagung Spodoptera frugiperda J. E. Smith merupakan hama infasif di Indonesia. Hama ulat grayak, merupakan hama polifag yang berasal dari Amerika Utara yang pertama kali ditemukan di Afrika Barat. Pengendalian hama ini sangat sulit karena petani umumnya terfokus pada penggunaan pestisida. Untuk itu metode pemanfaatan feromon sex merupakan alternatif untuk pengendalian hama S. frugiperda yang ramah lingkungan. Inovasi pemanfatan feromon sex berperan sebagai atraktan, mengganggu terjadinya kopulasi antara jantan dan betina dan perangkap masal untuk pengendalian hama S. frugiperda. Kata kunci : feromon, ulat grayak, Spodoptera frugiperda, jagung

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Section: Hama Spodoptera Frugiperdaunclassified

The Potential Of Army Worm Spodoptera frugiperda J.E. Smith, Control On Corn Plant Using Sex Pheromones

Mamahit,

Pakasi,

Rompas

et al. 2022

JAT

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“…In the past few decades, pesticide use in China has shown an increasing trend, and the amounts of chemical insecticides used per unit area in the period 2016-2017 was several times higher than that in Western developed countries [9]. It has been reported that since Spodoptera frugiperda (J. E. Smith) invaded western Yunnan Province, China, the frequency of pesticide use in the area has shown an increasing trend [10]; new high-efficiency and low-toxicity pesticides, such as spinetoram, emamectin benzoate, chlorantraniliprole, acephate, and antibiotic pesticide spinosad, have played a successful role in controlling S. frugiperda [11]. At present, the control of P. gularis is mainly achieved through the spraying of chemical pesticides at the ear stage.…”

Section: Introductionmentioning

confidence: 99%

Toxic Effects of Bt-(Cry1Ab+Vip3Aa) Maize on Storage Pest Paralipsa gularis (Zeller)

Chen,

Wang,

Kang

et al. 2024

Toxins

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Paralipsa gularis (Zeller) is a storage pest; however, in recent years it has evolved into a considerable maize pest during the late growth stage in the border region between China and other Southeast Asian countries. Bt transgenic insect-resistant maize is an effective measure in controlling a wide range of lepidopteran pests, but there is a lack of research on the toxic effects of storage pests. We tested the toxicity of Bt-Cry1Ab, Vip3Aa, and their complex proteins against P. gularis via bioassay and investigated the efficiency of Bt-(Cry1Ab+Vip3Aa) maize in controlling P. gularis during the late growth stage of maize in the period 2022–2023. The bioassay results show that the susceptibilities of P. gularis to the two Bt proteins and their complex proteins were significantly different. The LC50 values of DBNCry1Ab (“DBN9936” event), DBNVip3Aa (“DBN9501” event), DBN Cry1Ab+Vip3Aa (“DBN3601T” event), and Syngenta Cry1Ab+Vip3Aa (“Bt11” event × “MIR162” event) were 0.038 μg/g, 0.114 μg/g, 0.110 μg/g, and 0.147 μg/g, and the GIC50 values were 0.014 μg/g, 0.073 μg/g, 0.027 μg/g, and 0.026 μg/g, respectively. Determination of the expression content of the insecticidal protein in different tissues of Bt-(Cry1Ab+Vip3Aa) maize shows that the total Bt protein content in different tissues was in the following order: stalk > bract > cob > kernel. However, the bioassay results show that the mortalities of P. gularis feeding on Bt-(Cry1Ab+Vip3Aa) maize in different tissues at different growth stages were all above 93.00%. The field trial indicates that the occurrence density of larvae and plant damage rate for conventional maize were 422.10 individuals/100 plants and 94.40%, respectively, whereas no larvae were found on Bt-(Cry1Ab+Vip3Aa) maize. In summary, this study implies that Bt-(Cry1Ab+Vip3Aa) maize has a high potential for control of P. gularis, providing a new technical measure for the management of the pest.

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“…In general, the FAWs invading China exhibit the highest host adaptability to maize [8,9]. In addition to maize, wheat has become an important wintering host plant of FAWs [10,11]. Furthermore, there have been reports of FAW infestations in rice fields across many areas of China [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Gut Microbiota Affects Host Fitness of Fall Armyworm Feeding on Different Food Types

Ma,

Wang,

Ren

et al. 2024

Insects

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The fall armyworm (FAW), Spodoptera frugiperda, seriously threatens food and cash crops. Maize, wheat, and even rice damage by FAWs have been reported in many areas of China. It is urgent to clarify the mechanism which FAWs adapt to different feeding hosts and develop effective control technologies. Two-sex life tables and 16s rDNA sequencing were used to determine the host fitness and gut microbial diversity of FAWs when fed four different food types. Considering the life history parameters, pupa weight, and nutrient utilization indexes, the host fitness of FAWs when fed different food types changed in descending order as follows: artificial diet, maize, wheat, and rice. The gut microbial composition and the diversity of FAWs when fed different food types were significantly different, and those changes were driven by low-abundant bacteria. The gut microbes of FAWs that were fed with maize had the highest diversity. The functions of the gut microbes with significant abundance differences were enriched in nutrient and vitamin metabolism and other pathways that were closely related to host adaptation. Furthermore, we identified five genera (Acinetobacter, Variovorax, Pseudomonas, Bacillus, and Serratia) and one genus (Rahnella) that were positively and negatively correlated with the host fitness, respectively. This study revealed the possible role of gut microbes in the host adaptation of FAWs.

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Analysis of Potential Distribution of Spodoptera Frugiperda In Northwest

Cited by 4 publications

References 7 publications

The Potential Of Army Worm Spodoptera frugiperda J.E. Smith, Control On Corn Plant Using Sex Pheromones

The Potential Of Army Worm Spodoptera frugiperda J.E. Smith, Control On Corn Plant Using Sex Pheromones

Toxic Effects of Bt-(Cry1Ab+Vip3Aa) Maize on Storage Pest Paralipsa gularis (Zeller)

Gut Microbiota Affects Host Fitness of Fall Armyworm Feeding on Different Food Types

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