Journal of Biosciences, Journal Year: 2024, Volume and Issue: 49(4)
Published: Dec. 3, 2024
Language: Английский
Pest Management Science, Journal Year: 2024, Volume and Issue: unknown
Published: July 13, 2024
Abstract Melanaphis sacchari (Zehntner;Hemiptera: Aphididae), sugarcane aphid (SCA), is an invasive phloem‐feeder found worldwide with a wide host range of economically important plants including sorghum and sugarcane. Given its high reproductive capacity ability to rapidly spread over long distances, SCA presents challenges for effective control, leading substantial economic losses. Recent studies have identified two multiloci genotypes specialized in feeding on (MLL‐D) (MLL‐F) the USA, which raises concerns as USA second largest sorghum‐producing country. This has encouraged research towards identifying these biotypes where some stated them species; MLL‐D clade be M. MLL‐F sorghi Theobald (Hemiptera: (SA). review aims at compiling progress that been made understanding SCA/SA species complex. Furthermore, this also highlights management strategies against includes both biological chemical methods. In addition, emphasizes examining plant resistance understand evaluate role R ‐genes phytohormones such jasmonic acid, salicylic acid ethylene SCA. Beside this, volatiles other secondary metabolites flavonoids, terpenes phytanes are explored potential control agents. Being pest, single tactic inadequate population hence, integrated pest practices incorporating physical, cultural methods should implemented exclusive last resort, examines detail. © 2024 The Author(s). Pest Management Science published by John Wiley & Sons Ltd behalf Society Chemical Industry.
Language: Английский
Citations
12
Pest Management Science, Journal Year: 2025, Volume and Issue: unknown
Published: April 9, 2025
Abstract BACKGROUND A promising strategy to optimize biological control of insect pests is selecting crop varieties with indirect defense traits. Indirect plant defenses recruit natural enemies kill and include chemical attractants like herbivore‐induced volatiles. In prior laboratory assays, we found sorghum ( Sorghum bicolor L.) cultivar ATx3409/RTx436 infested aphid Melanaphis sorghi Theobald) was attractive emitted more than two other cultivars. this field study, manually 9‐week‐old plants aphids quantified differences in enemy densities among cultivars throughout the growing season. We also used cages access estimate their effects on suppression. RESULTS strong evidence that confer economically relevant pest populations assays can accurately predict recruitment field. 2022, there were three times lady beetles (Coleoptera: Coccinellidae), lacewings (Neuroptera: Chrysopidae Hemerobiidae), hover flies (Diptera: Syrphidae), parasitoids (Hymenoptera: Braconidae Aphelinidae) per cage experiment, reduced by up 83% one week after infestation. only remain below economic threshold season, indicating would not require any pesticide applications aphids. 2023, similar abundances across cultivars, latter which remained near zero likely due extremely hot temperatures drought may have contributed mortality. CONCLUSION Our findings demonstrate enhance deliver important Cultivar screening selection for traits provides a avenue improve protection breeding resistance. © 2025 The Author(s). Pest Management Science published John Wiley & Sons Ltd behalf Society Chemical Industry. This article has been U.S. Government employees work public domain USA.
Language: Английский
Citations
0
Insects, Journal Year: 2025, Volume and Issue: 16(4), P. 425 - 425
Published: April 17, 2025
The leaffooted bug, Leptoglossus phyllopus (L.) (Hemiptera: Coreidae), probes and feeds on tissues of many plant species, including developing cotton bolls, causing seed damage abscission. Insecticides are the primary tool for managing bugs, but concerns about resistance environmental harm highlight need alternative management strategies. One promising approach is using semiochemicals, such as plant- insect-produced volatile organic compounds (VOCs), to trap or repel pests. Insect herbivores often use plant-produced VOCs select suitable host plants feeding oviposition. Field observations abundant adult bugs bolls suggest that aggregate at sites. goal this study was characterize from with without bug herbivory evaluate how these affect foraging behavior. A portable dynamic headspace sampling method used collect in field, VOC samples were analyzed gas chromatography–mass spectrometry. Leaffooted induced emissions significant increases six (benzaldehyde, α-pinene, β-pinene, β-myrcene, p-xylene, (E)-β-caryophyllene). Dual-choice olfactometer assays revealed attracted damaged well being synthetic benzaldehyde α-pinene individually. In contrast, repelled by combination α-pinene. These findings attractive could contribute development lures integrated pest management.
Language: Английский
Citations
0
Journal of Chemical Ecology, Journal Year: 2025, Volume and Issue: 51(3)
Published: May 24, 2025
Language: Английский
Citations
0
Plant Cell & Environment, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 30, 2024
ABSTRACT Wheat ( Triticum aestivum L.) is one of the most important staple crops all over world. Its productivity adversely affected by aphid infestation. Plant volatiles play a critical role in plant communication, inducing direct and indirect defenses against insect pests. However, little known about priming mechanism key wheat. To determine whether how volatile induced defense wheat grain Sitobion avenae , combination bioassays, phytohormone metabolite quantification, transcriptome analyses were performed using an damage‐induced volatile, methyl salicylate (MeSA). MeSA treatment primed for enhanced accumulation salicylic acid, flavonoid benzoxazinoids (BXs), increased resistance to S. attractiveness parasitoid Aphelinus asychis . Supplementation with BX (2,4‐dihydroxy‐7‐methoxy‐2H‐1,4‐benzoxazin‐3(4H)‐one) two flavonoids (xanthohumol isobavachalcone) artificial diet impaired survival, development fecundity Moreover, emission especially MeSA. Functional investigation odorant‐binding proteins (OBPs) A. revealed that AasyOBP4 responsible recognition Taken together, our results provide insights into molecular MeSA‐mediated propose as phytoprotectant crop protection sustainable agriculture.
Language: Английский
Citations
2
Plant Biology, Journal Year: 2024, Volume and Issue: unknown
Published: Aug. 20, 2024
When attacked by insect herbivores, plants emit blends of chemical compounds known as herbivore-induced plant volatiles (HIPVs). Although HIPVs are produced both aboveground and belowground, how vary across tissues remains unresolved, do the selective forces shaping interspecific HIPV emission patterns. Here, we compared foliar root within among closely related species evaluated if different eco-evolutionary forces, including domestication, coexistence histories with or phylogenetic relatedness, explain blends. To examine belowground patterns in HIPVs, leaf volatile profiles for six Cucurbitaceae that differed domestication status history specialist herbivores. We predicted within-species from would be more similar than species, chemodiversity was reduced enhanced found herbivory induced quantitative qualitative changes emissions all which were pronounced belowground. Each tissue-specific species. Contrary to our predictions, diversity, while herbivores diversity. Additionally, relatedness did not correlate volatiles. Overall, this work furthers understanding driving emissions, elucidating an important previously undescribed component within-plant variation chemodiversity.
Language: Английский
Citations
1
Crop Protection, Journal Year: 2024, Volume and Issue: unknown, P. 106963 - 106963
Published: Sept. 1, 2024
Language: Английский
Citations
1
Plants, Journal Year: 2024, Volume and Issue: 13(20), P. 2873 - 2873
Published: Oct. 14, 2024
is a pest that native to Africa but now distributed worldwide. In 2013, its destructive capacity was demonstrated when it devastated sorghum crops in the United States and Mexico, making new of economic importance North America. At time, phytosanitary authorities both countries recommended use pesticides control outbreak, biological products for management this were not known. response outbreak
Language: Английский
Citations
0
Journal of Biosciences, Journal Year: 2024, Volume and Issue: 49(4)
Published: Dec. 3, 2024
Language: Английский
Citations
0