Impacts of Sublethal Doses of Spinetoram on the Biological Traits and Detoxifying Enzymes of the Tomato Leaf Miner, Tuta absoluta (Lepidoptera: Gelechiidae) DOI Creative Commons
Mingjun Jiang, Xiujuan Qian,

Zhaoxu Zhou

et al.

Insects, Journal Year: 2024, Volume and Issue: 15(12), P. 990 - 990

Published: Dec. 13, 2024

Tuta absoluta is a major pest, damaging tomato crops in many countries. Spinetoram, novel insecticide, increasingly used for the management of various insect pests. However, limited information available on its lethal effects T. absoluta. Therefore, this study was carried out to evaluate toxicity spinetoram concentrations by exposing third-instar larvae insecticide through leaf-dipping bioassays under laboratory conditions. The results showed that sublethal (LC10 and LC20) extended developmental duration larval pupal stage, as well oviposition period, decreased weight, pupation eclosion rates, fecundity, sex ratio, egg-hatching rate compared control group. LC10 LC20 treatments up-regulated activity superoxide dismutase catalase antioxidant enzymes 51.14–88.72% 39.34–87.76% at 12 h, 62.71–96.68% 37.38–39.92% 24 41.78–53.34% 19.44–48.39% 48 respectively, control. Conversely, inhibited activities detoxifying enzymes, i.e., carboxylesterase (14.72–34.95%), acetylcholinesterase (9.02–48.86%), glutathione S-transferase (19.40–43.19%), mixed-function oxidase (18.18–25.93%). These findings indicate influence population dynamics reducing their survival potential inhibiting enzymes.

Language: Английский

Actinomycetes are a natural resource for sustainable pest control and safeguarding agriculture DOI
Mohamed K. Diab, Hala Mead, Mohamad Khedr

et al.

Archives of Microbiology, Journal Year: 2024, Volume and Issue: 206(6)

Published: May 19, 2024

Language: Английский

Citations

5
Effects of tebuconazole on insecticidal activity and symbionts in brown planthopper, Nilaparvata lugens (Hemiptera: Delphacidae) DOI

Yuqing Zhong,

Qian Wang,

Fan Sun

et al.

Pesticide Biochemistry and Physiology, Journal Year: 2025, Volume and Issue: 208, P. 106283 - 106283

Published: Jan. 4, 2025

Language: Английский

Citations

0
Fall armyworm threatens Asian rice security: A review of sustainable management strategies DOI
Lekhnath Kafle,

Ravindra Chandra Joshi

CABI Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Abstract Rice ( Oryza sativa L.), a primary staple food for billions of people worldwide, faces growing threat from the invasive fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), in Asia. Given predominance small-scale farmers Asian rice production, which accounts over two-thirds global output, region is highly vulnerable to FAW infestations. The FAW’s rapid reproduction, extensive dispersal capabilities, and remarkable adaptability pose significant risks, with potential substantial yield losses comparable those observed other crops. Recent reports highlight concerning host shift corn-specialized strain towards cultivation Beyond direct losses, infestations can lead excessive use pesticides, posing serious threats human health environment safety. Effective sustainable management crucial ensuring long-term agricultural sustainability. Control strategies encompass diverse range approaches, including cultural techniques, biological methods, chemical interventions, habitat manipulation. absence varieties resistant underscores urgent need accelerated development through genetic engineering. Cultural control practices, such as staggered planting, deep tillage, crop rotation non-host species, improved field sanitation, effectively reduce populations. While promising, methods like trap cropping push-pull require further validation systems. Biological measures utilize natural predators, big-eyed bugs ground beetles, parasitoids Telenomus remus Campoletis sonorensis . Additionally, entomopathogenic agents Metarhizium rileyi , Bacillus thuringiensis (Bt), Beauveria bassiana offer environmentally alternatives insecticides. synthetic insecticides remain an essential component management, increasing prevalence pesticide resistance associated economic necessitate eco-friendly solutions. multiple insecticide classes robust strategies. This review emphasizes critical role integrated pest (IPM) combating Asia, advocating balanced approach that prioritises control, effective judicious insecticides, mitigate damage ensure security region.

Language: Английский

Citations

0
Multiple effects of indoxacarb on the soybean caterpillar Anticarsia gemmatalis DOI
Carlos Henrique Batista, Angelica Plata‐Rueda,

Weslei dos Santos Cunha

et al.

Crop Protection, Journal Year: 2025, Volume and Issue: unknown, P. 107214 - 107214

Published: March 1, 2025

Language: Английский

Citations

0
Biochemical and Histopathological Impacts Induced by the Lethal Toxicity of Chlorpyriphos, Methomyl, and Spinosad against the Fall Armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae) in Egypt DOI Creative Commons

Mervat Mahmoud,

F. A. Abdel-Galil,

Zeinab Heussien

et al.

Egyptian Academic Journal of Biological Sciences, Journal Year: 2024, Volume and Issue: 17(1), P. 31 - 46

Published: Feb. 16, 2024

The fall armyworm, Spodoptera frugiperda is one of the most highly invasive and damaging agricultural pests. In Egypt, maize grains have enormous economic importance. Infestations S. in cause a significant reduction yield. This research aimed to assess potential impact LC50 values for chlorpyrifos, methomyl, spinosad, set at 470, 105.5, 2.5 ppm, respectively, on biochemical histopathological responses frugiperda. results indicated that exposure armyworm larvae lethal concentrations such insecticides resulted decrease total protein, carbohydrate, lipids associated with increase α, β-esterase, acetylcholinesterase. Moreover, noted elevation acid alkaline phosphatases, Glutamate oxaloacetate transaminase (GOT) glutamate pyruvate (GPT), phenoloxidase, chitinase activities occurred. For digestive enzymes, amylase activity has occurred while invertase trehalase changed only differences among spinosad methomyl treatments. However, chlorpyrifos exhibited non-significant variations trehalase. By cross-section midgut larvae, distinct histological damage was distinguished by cytoplasmic vacuolation, necrosis sloughing epithelial lining from basement membrane toward its lumen. conclusion, all treatments insecticides, or significantly affected aspects histopathology larvae.

Language: Английский

Citations

3
Impacts of Sublethal Doses of Spinetoram on the Biological Traits and Detoxifying Enzymes of the Tomato Leaf Miner, Tuta absoluta (Lepidoptera: Gelechiidae) DOI Creative Commons
Mingjun Jiang, Xiujuan Qian,

Zhaoxu Zhou

et al.

Insects, Journal Year: 2024, Volume and Issue: 15(12), P. 990 - 990

Published: Dec. 13, 2024

Tuta absoluta is a major pest, damaging tomato crops in many countries. Spinetoram, novel insecticide, increasingly used for the management of various insect pests. However, limited information available on its lethal effects T. absoluta. Therefore, this study was carried out to evaluate toxicity spinetoram concentrations by exposing third-instar larvae insecticide through leaf-dipping bioassays under laboratory conditions. The results showed that sublethal (LC10 and LC20) extended developmental duration larval pupal stage, as well oviposition period, decreased weight, pupation eclosion rates, fecundity, sex ratio, egg-hatching rate compared control group. LC10 LC20 treatments up-regulated activity superoxide dismutase catalase antioxidant enzymes 51.14–88.72% 39.34–87.76% at 12 h, 62.71–96.68% 37.38–39.92% 24 41.78–53.34% 19.44–48.39% 48 respectively, control. Conversely, inhibited activities detoxifying enzymes, i.e., carboxylesterase (14.72–34.95%), acetylcholinesterase (9.02–48.86%), glutathione S-transferase (19.40–43.19%), mixed-function oxidase (18.18–25.93%). These findings indicate influence population dynamics reducing their survival potential inhibiting enzymes.

Language: Английский

Citations

2