Modified Maximum Dose Bioassay for Assessing Insecticide Response in Field Populations of Bemisia tabaci (Hemiptera: Aleyrodidae)1 DOI Open Access
Jermaine D. Perier, Paulo S. G. Cremonez, Albertha J. Parkins

et al.

Journal of Entomological Science, Journal Year: 2024, Volume and Issue: 59(4)

Published: April 19, 2024

The sweetpotato whitefly, Bemisia tabaci (Gennadius) MEAM1 (Hemiptera: Aleyrodidae), continues to be a major pest of vegetable cultivation in Georgia, USA. Field-by-field surveying is an effective approach determining the susceptibility status B. population insecticide. During 2020–2022, modified maximum dose bioassay method was tested characterize insecticide response field populations several commonly used insecticides for whitefly management Tift Co., GA, and surrounding areas. A rapid these evaluations that allowed assessments before spray applications reduce adult life stage this species. results were produced within 24-h following root drench period. Our survey suggests neonicotinoids dinotefuran flupyradifurone most from Insecticide Resistance Action Committee (IRAC) group 4A. Cyantraniliprole also effective, with 88 86% mortality exposure high (maximum) low doses, respectively. Conversely, levels control using another diamide, cyclaniliprole, notably lower. Adding provided early indication inefficient product potentially indicating increase resistance. Specifically, significant difference between doses dose–response curve had shifted toward resistance development each population. proposed meant systemic offer quick responses on adults. use efficient will improve prioritizing or rotation program.

Language: Английский

A Maximum Dose Bioassay to Assess Efficacy of Spinetoram against Cowpea Thrip Megalurothrips usitatus in China DOI Creative Commons

Huailiang Yu,

Mingyue Wu,

Shaoka Li

et al.

Insects, Journal Year: 2024, Volume and Issue: 15(6), P. 412 - 412

Published: June 3, 2024

The bean flower thrip Megalurothrips usitatus (Bagnall) is a severe pest on cowpeas and causes 20–30% reduction in Hainan, China, with even complete crop failure cases. Spinetoram currently the most important pesticide against M. cowpea production. In main producing areas of however, efficacy spinetoram not well known. present study, we employed maximum dose bioassay to evaluate mortality rates adult thrips at F0 spinetoram, freshly collected from 212 field populations 20 villages Yazhou District Hainan. Our results showed that these exposed were 3.31% 100%. Among them, 66.98% (142/212) exceeded 80%, while 33.96% (72/212) surpassed 90%. Only small proportion 0.47% (1/212) exhibited rate below 10%, 4.72% (10/212) displayed 50%. Furthermore, significant differences also observed among different villages. Taken together, dosage method rapid easily implemented approach providing valuable insights into insecticides offers guidance determining optimal required field. still effective but caution should be exercised its combined use other methods reduce potential resistance.

Language: Английский

Citations

5
Insecticidal Potential of Essential Oil and Sesquiterpene Alcohols from Leaves of Clausena indica (Dalz.) Oliver Against Spodoptera litura, Helicoverpa armigera, and Tribolium castaneum Under Laboratory and Field Conditions DOI

J. Achyutha Devi,

R. Thangapandian,

C. Vijayaraghavan

et al.

Neotropical Entomology, Journal Year: 2025, Volume and Issue: 54(1)

Published: May 20, 2025

Language: Английский

Citations

0
Monitoring the susceptibility of Bemisia tabaci Middle East-Asia Minor 1 (Hemiptera: Aleyrodidae) to afidopyropen, cyantraniliprole, dinotefuran, and flupyradifurone in south Florida vegetable fields DOI Creative Commons
Marcelo Dimase, Bruno Rossitto De Marchi, Felipe Barreto da Silva

et al.

Journal of Economic Entomology, Journal Year: 2024, Volume and Issue: 117(4), P. 1606 - 1615

Published: May 15, 2024

Abstract Bemisia tabaci Middle East-Asia Minor 1 (MEAM1) is a significant pest that damages wide range of high-value vegetable crops in south Florida. This has demonstrated the ability to develop resistance various insecticide groups worldwide. Monitoring levels MEAM1 populations and maintaining baseline susceptibility data are crucial for long-term effectiveness management strategies. We conducted serial dilution bioassays on 15 field collected Florida assess their 4 key insecticides: afidopyropen, cyantraniliprole, dinotefuran, flupyradifurone. To quantify levels, ratios (RR) were generated by comparing LC50 values those known susceptible colony reared laboratory. Our findings reveal all field-collected dinotefuran (RR 1–8) flupyradifurone 2–8). While over 80% tested afidopyropen 1–9), 2 exhibited low 38) moderate 51), respectively. In contrast, most (57%) showed cyantraniliprole 21–78), remaining 3–10). The with also cyantraniliprole. Further research this direction can aid refining programs other regions where B. major pest. Exploring implications these will be essential use integrated strategies

Language: Английский

Citations

3
Enhancing yield and economic benefits through sustainable pest management in Okra cultivation DOI Creative Commons
Swapnalisha Mohapatra,

Jayaraj Padhi,

Satyapriya Singh

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Sept. 27, 2024

Language: Английский

Citations

3
Cutting Dipping Application of Flupyradifurone against Cassava Whiteflies Bemisia tabaci and Impact on Its Parasitism in Cassava DOI Creative Commons
Ruben Caspary, Everlyne N. Wosula, Khamis A. Issa

et al.

Insects, Journal Year: 2023, Volume and Issue: 14(10), P. 796 - 796

Published: Sept. 30, 2023

The cassava whitefly Bemisia tabaci causes damage in through the feeding and vectoring of plant viruses that cause mosaic brown streak diseases. This study sought to explore efficacy cutting dipping flupyradifurone for control impact mode application on parasitism under farmer field conditions. insecticide treatment significantly reduced adult whiteflies by 41%, nymphs 64%, disease (CMD) incidence 16% increased root yield 49%. rate Encarsia spp. parasitoids was 27.3 21.1%, while Eretmocerus had 26.7 18.0% flupyradifurone, respectively, these differences were not significant. Electropenetrography recordings behaviour flupyradifurone-treated plants showed probing activity a delay reaching phloem as compared control. findings from this demonstrated reduces numbers incidence, thus contributing significant increase cassava. Flupyradifurone applied dips does rates fields. Routine monitoring predators insecticide-treated versus fields should be emphasized determine pesticides beneficial non-target organisms.

Language: Английский

Citations

7
Host-feeding capacity and parasitism performance of heteronomous hyperparasitoid Encarsia lutea Masi (Hym.: Aphelinidae) on different host plant species DOI

Behiye Arıkan,

Mahmut Mete Karaca, Kamil Karut

et al.

Biocontrol Science and Technology, Journal Year: 2024, Volume and Issue: 34(3), P. 257 - 268

Published: March 3, 2024

Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) is one of the most economically significant and widely distributed whitefly species. Encarsia lutea Masi (Hymenoptera: Aphelinidae) a heteronomous hyperparasitoid reported to be key factors in management B. populations Mediterranean countries. This study aimed evaluate interactions among E. lutea, tabaci, host plant, obtaining comprehensive data enhance its application biological control programmes. Therefore, laboratory studies were carried out determine host-feeding capacity parasitism at six nymph densities (10, 20, 40, 60, 80, 100) on three plant species: bean, cotton, eggplant. The number nymphs killed by parasitoid through feeding increased with increasing for all plants. lowest (4.06) highest (27.5) mean numbers parasitised observed 10 100 nymphs, respectively. behaviour was affected found statistically higher cotton (6.7) than bean (4.6) eggplant (4.3), when pooled over densities. In conclusion, although results showed that can act as density-dependent parasitoid, performance varies depending further hyperparasitism should conducted before evaluating it potential candidate agent tabaci.

Language: Английский

Citations

1
Evaluation of Biopesticides for Management of Bemisia tabaci MEAM1 (Hemiptera: Aleyrodidae) in Florida DOI Open Access
Marcelo Dimase, Sriyanka Lahiri, Julien Beuzelin

et al.

Published: May 17, 2024

The sweetpotato whitefly, Bemisia tabaci MEAM1, is a pest known to significantly impact tomato development and yields through direct damage virus transmission. To manage this pest, the current study compared effectiveness of various insecticide rotations. Field trials included rotations involving synthetic insecticides, biochemicals, microbial agents, applied according their labeled highest concentrations. Results indicated that while standard insecticides consistently reduced whitefly egg nymph counts significantly, biopesticide also achieved reductions, although less consistently. This demonstrated traditional chemical treatments remain highly effective, integrating biopesticides containing Beauveria bassiana Cordyceps javanica present viable alternative could mitigate resistance reduce environmental impact. findings suggest potential for optimizing integrated management (IPM) Insecticide Resistance Management (IRM) strategies by incorporating variety modes action sustainably B. MEAM1 populations in agricultural settings.

Language: Английский

Citations

1
Evaluation of Biopesticides for Management of Bemisia tabaci Middle East-Asia Minor 1 (Hemiptera: Aleyrodidae) in Florida DOI Creative Commons
Marcelo Dimase, Sriyanka Lahiri, Julien Beuzelin

et al.

Insects, Journal Year: 2024, Volume and Issue: 15(6), P. 438 - 438

Published: June 10, 2024

The sweetpotato whitefly,

Language: Английский

Citations

1
Physical and chemical characterization of wild tomato Solanum habrochaites accessions for resistance to the sweetpotato whitefly DOI Creative Commons
Thiago Rutz, Jéssica S. Pizzo, Alana L. Jacobson

et al.

Scientia Horticulturae, Journal Year: 2024, Volume and Issue: 338, P. 113687 - 113687

Published: Sept. 29, 2024

Language: Английский

Citations

1
Precision and Accuracy of Field Versus Laboratory Bioassay Insecticide Efficacy for the Control of Immature Bemisia tabaci DOI Creative Commons
Paulo S. G. Cremonez, Jermaine D. Perier,

Mirela M Nagaoka

et al.

Insects, Journal Year: 2023, Volume and Issue: 14(7), P. 645 - 645

Published: July 18, 2023

Ecotoxicological studies often result in reports on the limitation and sometime failures of biological assay data to predict field response similar treatments. Nevertheless, it is widely accepted that controlled bioassays can better quantify specific mortality a target pest species toxin. To relationship between whitefly bioassay data, we evaluated laboratory concurrent cucurbit trial method assess insecticide efficacy for controlling sweetpotato whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae). This was based oviposition nymphal development. We specifically tested assumptions maximum dose would more precisely measure as compared with comparable spray test evaluation, be equal control accuracy both adult development stages. make direct comparison, same population subsamples from 352 plots eight experiments Georgia, USA, 2021 2022. The provide significantly precision estimating proportional response. As expected, treatment-specific nonequivalence immature counts field, i.e., lack accuracy, only occurred insecticides were not highly toxic all growth stages whiteflies.

Language: Английский

Citations

2