Life‐history costs associated with resistance to lambda‐cyhalothrin in the predatory ladybird beetle <i>Eriopis connexa</i>

Ferreira, Emerson S.; Rodrigues, Agna R.S.; Silva-Torres, Christian S. A.; Torres, Jorge B.

doi:10.1111/j.1461-9563.2012.00599.x

Cited by 22 publications

(4 citation statements)

References 61 publications

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“…Previous works have shown that resistance to diamides in some DBM strains is related to specific target-site mutations, while metabolic processes involving glutathione S -transferase and higher cytochrome P450-dependent monooxygenase activity in the resistant strains have also been suggested (Troczka et al ., 2012; Steinbach et al ., 2015; Wang et al ., 2016; Kang et al ., 2017). Resistant DBM strains may have biological disadvantages in comparison to susceptible strains in areas without the selective pressure of the insecticide, including reduction in insect fitness, known as a trade-off between survival and reproduction (Coustau et al ., 2000; Arnaud & Haubruge, 2002; Jia et al ., 2009; Castañeda et al ., 2011; Ferreira et al ., 2013; Ribeiro et al ., 2014). This adaptive cost in the absence of the insecticide can contribute to resistance management, since products may be rotated (e.g.…”

Section: Introductionmentioning

confidence: 99%

Behavioral response and adaptive cost in resistant and susceptiblePlutella xylostellato Chlorantraniliprole

Passos

Silva-Torres

Siqueira

2019

Bull. Entomol. Res.

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Diamides have been used worldwide to manage the diamondback moth (DBM), Plutella xylostella L. (Lepidoptera: Plutellidae), however some strains showed resistance to these molecules. Also, pheromone traps could be used to manage this pest, hence reducing the use of insecticides in the field. Resistant DBM strains may have biological disadvantages in comparison to susceptible strains in areas without sprays, including reduction in fitness or behavioral changes. Therefore, the aim of this study was to investigate whether DBM strains resistant to chlorantraniliprole showed adaptive costs that could alter male attraction to the sex pheromone, in comparison to susceptible strains in the laboratory and semi-field conditions. First, the LC1, LC10, LC25, and LC50 of DBM to chlorantraniliprole were established, which were 0.003, 0.005, 0.007, and 0.011 mg a.i. liter−1, and 5.88, 24.80, 57.22, and 144.87 mg a.i. liter−1 for the susceptible and resistant strains, respectively. Development and reproduction of DBM strains subjected to those concentrations were compared. Later, male response to the sex pheromone was investigated in a Y-tube in the laboratory and in a greenhouse to pheromone traps. Resistant DBM strain showed an adaptive cost in comparison to the susceptible strain that can result in a delay in population growth in the field when selection pressure is absent. Conversely, resistant males have no olfactory response alteration in comparison to susceptible males, consistently at 3 (P = 0.6848) and 7 days (P = 0.9140) after release, suggesting that pheromone traps continue to be a viable alternative to manage DBM in an IPM system.

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Section: Introductionmentioning

confidence: 99%

Behavioral response and adaptive cost in resistant and susceptiblePlutella xylostellato Chlorantraniliprole

Passos

Silva-Torres

Siqueira

2019

Bull. Entomol. Res.

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“…Recently, studies have found and characterized resistance to LCT in some populations of E. connexa (Rodrigues, 2012), and have documented the occurrence of a fitness cost along with the predatory potential of resistant beetles after exposure to this insecticide (Ferreira et al , 2012). This is of considerable interest because the presence of LCT resistant predatory ladybirds in cotton fields might allow growers to maintain the beetles for aphid control, while at the same time maintaining insecticide action against other target pests such as boll weevils.…”

Section: Introductionmentioning

confidence: 99%

Survival and behavioural responses of the predatory ladybird beetle,Eriopis connexapopulations susceptible and resistant to a pyrethroid insecticide

Spindola

Silva-Torres

Rodrigues

et al. 2013

Bull. Entomol. Res.

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The ladybird beetle, Eriopis connexa (Germar) (Coleoptera: Coccinellidae), is one of the commonest predators of aphids (Hemiptera: Aphididae) in the cotton agroecosystem and in many other row and fruit crops in Brazil, and has been introduced into other countries such as the USA for purposes of aphid control. In addition, the boll weevil, Anthonomus grandis Boheman (Coleoptera: Curculionidae) is the most serious cotton pest where it occurs, including Brazil. Controlling boll weevils and other pests such as cotton defoliators still tends to involve the intense application of insecticides to secure cotton production. The pyrethroid insecticide lambda-cyhalothrin (LCT) is commonly used, but this compound is not effective against aphids; hence, a desirable strategy would be to maintain E. connexa populations in cotton fields where LCT is applied. Using populations of E. connexa resistant (Res) and susceptible (Sus) to LCT, we compared behavioural responses on treated cotton plants and under confinement on partially and fully treated surfaces, and assessed the insects' survival on treated plants compared with that of the boll weevil. The E. connexa resistant population caged on treated plants with 15 and 75 g a.i. ha-1 exhibited ≫82% survival for both insecticide concentrations compared with ≪3% and ≪17% survival for susceptible E. connexa populations and boll weevils, respectively. The response of E. connexa Res and Sus populations when released, either on the soil or on the plant canopy, indicated avoidance towards treated plants, as measured by elapsed time to assess the plant. When compared with susceptible individuals, resistant ones took longer time to suffer insecticide knockdown, had a higher recovery rate after suffering knockdown, and spent more time in the plant canopy. Based on behavioural parameters evaluated in treated arenas, no ladybird beetles exhibited repellency. However, irritability was evident, with the susceptible population exhibiting greater irritability compared with the resistant population and a subgroup comprising resistant individuals that had recovered from knockdown. The outcomes for the E. connexa Res population indicate a promising strategy for its maintenance when using the insecticide LCT in integrated pest management schemes to control boll weevil or other non-target pest of ladybird beetles in cotton fields.

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“…The resistance of E. connexa to lambda-cyhalothrin is possible due to an increased esterase enzymatic profile (Rodrigues et al, 2014(Rodrigues et al, , 2020. In turn, it generates a fitness cost, with resistant beetles having reduced reproductive potential and reduced longevity when compared to susceptible individuals (D' Ávila et al, 2018;Ferreira et al, 2013;Lira et al, 2016;Santos et al, 2016). Other insects such as Aphis gossypii (Glover) expressed longer pre-reproductive period and low reproductive rate (Zhang et al, 2020).…”

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confidence: 99%

Heterosis and reselection for pyrethroid resistance trait maintenance in the lady beetle Eriopis connexa (Germar)

Nascimento

Lira

Torres

2023

Annals of Applied Biology

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Exposure of Eriopis connexa (Germar) to pyrethroid residues in agroecosystems has resulted in selection for resistance (R). Pyrethroid resistance allows E. connexa to survive lambda‐cyhalothrin applications. Following a field release of E. connexa, development of resistance in an incipient population may depend on three major factors such as the maintenance of: (i) selection pressure, (ii) frequency of mating with susceptible phenotypes (S) and (iii) differential reproductive performance due to the fitness costs associated with resistance. To investigate the potential effects of these three factors on the development of pyrethroid resistance by progeny of field released E. connexa, our experiments included panmictic mating between R and S phenotypes, followed by descendant rearing with and without insecticide selection pressure, reselection and determination of resistance levels. In addition, we measured the reproductive performance of the parental R and S phenotypes and their descendants to assess the cost of resistance after crossing and reselection. Survival of R × S descendants exposed to lambda‐cyhalothrin was reduced across successive generations in the absence of selection pressure, but still enhanced after four generations indicating the persistent presence of resistant phenotypes in the population. Under selection pressure with exposure to lambda‐cyhalothrin applied at label rates, descendant survival was >50%. Fecundity and survival were higher in the first‐generation of crossed R × S females, but higher fecundity was not sustained after reselection. Adults of the R population exhibited a fitness cost, reduced longevity, when compared to S phenotypes and R × S crossed populations. Therefore, resistance maintenance in E. connexa after release will depend on selection pressures imposed by insecticide exposure. In the absence of selection pressure, the phenotype for resistance was reduced, but not completely lost. Further, resistant phenotypes can be reselected following insecticide exposure and this can explain, in part, the high frequency of field‐evolved resistance to lambda‐cyhalothrin in E. connexa.

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Life‐history costs associated with resistance to lambda‐cyhalothrin in the predatory ladybird beetle Eriopis connexa

Cited by 22 publications

References 61 publications

Behavioral response and adaptive cost in resistant and susceptiblePlutella xylostellato Chlorantraniliprole

Behavioral response and adaptive cost in resistant and susceptiblePlutella xylostellato Chlorantraniliprole

Survival and behavioural responses of the predatory ladybird beetle,Eriopis connexapopulations susceptible and resistant to a pyrethroid insecticide

Heterosis and reselection for pyrethroid resistance trait maintenance in the lady beetle Eriopis connexa (Germar)

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