Susceptibility of soybean looper to lufenuron and spinosad

Queiroz, Lucas Ferraz de; Corassa, Janaína De Nadai; Rodrigues, S. M. M.; Pitta, Rafael Major

doi:10.1590/1808-1657000062019

Cited by 3 publications

(3 citation statements)

References 28 publications

(25 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, resistant C. includens populations have been documented since the '70s in the USA for various insecticides, such as chlorinated, phosphorous, carbamates, and pyrethroids (MASCARENHAS & BOETHREL, 2000). In Brazil, this record has been recent, but populations with a resistance ratio higher than 10-fold have already been detected for flubendiamide, chlorantraniliprole, methomyl, lambda-cyhalothrin, methoxyfenozide, novaluron, teflubenzuron, and spinosad (RESTELATTO et al, 2021;STACKE et al, 2019;QUEIROZ et al, 2020). In addition, Spinetoram showed low variations in susceptibility from 2.5-to 8.6-fold (STACKE et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

“…When exposed to a certain insecticide, the differential survival of a given species can also increase the risk of evolution of resistance (GEORGHIOU, 1983;BERNARDI et al, 2012). In Brazil, intraspecific variability in susceptibility to insecticides has been reported in C. includens, showing that this species can adapt to insecticides (RESTELATTO et al, 2021;STACKE et al, 2019;QUEIROZ et al, 2020). The differences in insect susceptibility to insecticides affect integrated pest management (IPM) and insect resistance management (IRM) programs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative susceptibility of Anticarsia gemmatalis Hübner (Lepidoptera: Erebidae) and Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) to insecticides

et al. 2022

View full text Add to dashboard Cite

Chrysodeixis includens (Walker) and Anticarsia gemmatalis Hübner are important soybean defoliators. The chemical control of A. gemmatalis has been easier and more effective than that of C. includens. It is hypothesized that C. includens is natural tolerant to insecticides. This study quantified and compare the susceptibility of C. includens and A. gemmatalis to the insecticides flubendiamide, methomyl, and spinetoram. A susceptible population of each species, maintained under laboratory conditions without insecticides selection pressure for more than 17 generations, was used. Ingestion bioassays using five to eight concentrations of each insecticide applied on the artificial diet surface were used to estimate the LC50 and LC99 (LC = Lethal Concentration). The tolerance ratio (TR) was calculated by dividing the LC50 or LC99 of the most tolerant species by the respective value of the most susceptible species. Chrysodeixis includens was more tolerant to all insecticides tested than A. gemmatalis, with TR50 values of 45.9-, 10.0- and 2.6-fold for methomyl, flubendiamide, and spinetoram. These findings indicated that the risk of evolution of resistance may be higher for C. includens than A. gemmatalis due to differential survival when exposed to the same dose of insecticide applied in soybean fields. Therefore, to improve the control of both species, integrated pest management (IPM) and insect resistance management (IRM) strategies should be considered to avoid control failures in field conditions.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative susceptibility of Anticarsia gemmatalis Hübner (Lepidoptera: Erebidae) and Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) to insecticides

et al. 2022

View full text Add to dashboard Cite

show abstract

“…For C. includens, insecticide resistance evolution has already been recorded in the United States for acephate, BHC, DDT, cypermethrin, deltamethrin, permethrin, tefluthrin, fenvalerate, methomyl, methyl parathion, and thiodicarb (LEONARD et al, 1990). In Brazil, since the 2013/14 crop season, intraspecific variability in the susceptibility to insecticides of the diamide chemical group has been documented, such as for flubendiamide and chlorantraniliprole (RESTELATTO et al, 2021;SCHNEIDER;SOSA-GÓMES, 2016;STACKE et al, 2019) as well as for insecticides of other chemical groups like benzoylureas, pyrethroids, and diacylhydrazines (QUEIROZ et al, 2020;STACKE et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

CHARACTERIZATION OF THE RESISTANCE OF Chrysodeixis includens TO DIAMIDES

Contini

Wille²,

MAFRA³

et al. 2022

Rev. Caatinga

View full text Add to dashboard Cite

In recent decades, soybean has been one of the most widely grown crops in Brazil. The soybean looper, Chrysodeixis includens (Walker, [1858]; Lepidoptera: Noctuidae), is one of the main defoliating pests of soybean that cause damage and affect the cost of production. The overall objective of the present study was to characterize the resistance of C. includens to diamide insecticides. To this end, the baseline susceptibility of C. includens to flubendiamide, chlorantraniliprole, and cyantraniliprole was characterized to estimate their concentrations for diagnostic monitoring of resistance in populations collected in commercial soybean crops in southern Brazil during the 2018/19 season. Under field conditions, evaluations were made of the residual activity of three diamide insecticides: chlorantraniliprole + lambda-cyhalothrin, teflubenzuron, methoxyfenozide, and bifenthrin for discrimination between flubendiamide-susceptible and resistant C. includens. Chrysodeixis includens was more tolerant to cyantraniliprole than to flubendiamide and chlorantraniliprole. The field populations had a higher survival rate than the susceptible population. The resistant population showed a resistance ratio to flubendiamide of 70.1-fold. Under field conditions, the residue of the study insecticides, except for bifenthrin, enabled discrimination between flubendiamide-susceptible and resistant C. includens. The data indicate the need to study the cross-resistance relationships between insecticides to improve the rotation recommendation. They also reinforce the importance of using other good management practices, e.g., the use of insecticides based on pest sampling and the choice of other control methods to prevent C. includens from becoming resistant to diamide insecticides.

show abstract

Intraspecific variation in the Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) susceptibility to insecticides

Restelatto

Wille

Buss

et al. 2021

Pesqui. Agropecu. Trop.

View full text Add to dashboard Cite

The looper caterpillar Chrysodeixis includens (Walker) is considered the main defoliating pest in soybean crops, which contributes to yield losses. Delaying its resistance to insecticides is a major challenge in its management. This study aimed to characterize the susceptibility of C. includens to flubendiamide, cyantraniliprole, spinetoram and methomyl, as well as to establish a diagnostic concentration for monitoring resistance. The insecticide was applied to the surface of the artificial diet. For the dose-response curve, concentrations that resulted in 5 to 99 % mortality were used to estimate the lethal concentrations (LC50 and LC99) and resistance ratios (RR50 and RR99). The diagnostic concentrations were based on concentrations that provided 90 to 99 % mortality in the susceptible reference population. For flubendiamide and methomyl, the decrease in the susceptibility resulted in estimated RR50 of 6.2 to 24.2 and 4.4 to 19.6 times, respectively. For cyantraniliprole and spinetoram, there was little difference in susceptibility among the populations, with RR99 lower than 6.1 times. Differences in the susceptibility of C. includens were evident from concentrations of 0.5053, 5.053, 0.1579 and 28.42 μg cm-2, respectively for flubendiamide, cyantraniliprole, spinetoram and methomyl.

show abstract

Susceptibility of soybean looper to lufenuron and spinosad

Cited by 3 publications

References 28 publications

Comparative susceptibility of Anticarsia gemmatalis Hübner (Lepidoptera: Erebidae) and Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) to insecticides

Comparative susceptibility of Anticarsia gemmatalis Hübner (Lepidoptera: Erebidae) and Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) to insecticides

CHARACTERIZATION OF THE RESISTANCE OF Chrysodeixis includens TO DIAMIDES

Intraspecific variation in the Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) susceptibility to insecticides

Contact Info

Product

Resources

About