Side-Effects of Glyphosate to the Parasitoid Telenomus remus Nixon (Hymenoptera: Platygastridae)

Stecca, C S; Bueno, Ana Carolina; Pasini, Amarildo; Silva, D M; Andrade, Karine; Filho, Domingos Moraes

doi:10.1007/s13744-016-0363-4

Cited by 27 publications

(11 citation statements)

References 54 publications

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“…ha -1 ) was marginally more toxic to the adults than to the pupae. The higher tolerance of the pupae of T. pretiosum to the insecticide when compared with that of the adults is synonymous with earlier reports (STECCA et al, 2016). This might be due to the presence of the parasitoid within the host egg where the chorion protects the parasitoid from the insecticide (STECCA et al, 2016).…”

Section: Discussionsupporting

confidence: 56%

“…The higher tolerance of the pupae of T. pretiosum to the insecticide when compared with that of the adults is synonymous with earlier reports (STECCA et al, 2016). This might be due to the presence of the parasitoid within the host egg where the chorion protects the parasitoid from the insecticide (STECCA et al, 2016). It is also important to note that the ability of an insecticide to penetrate the chorion of an insect egg might vary depending on the physicochemical properties of the tested insecticide.…”

Section: Discussionsupporting

confidence: 54%

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Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)

Grande

Braz

Bueno

et al. 2018

SCA

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The present study evaluated the effect of different rates of chlorantraniliprole, chlorantraniliprole + lambda-cyhalothrin, spinosad, and chlorfenapyr on their selectivity for the pupae and adults of Trichogramma pretiosum. The negative effect of majority of the insecticides tested on most of the parasitoids was directly proportional to the rate of the insecticide applied. Chlorantraniliprole at a rate of 10 g a.i. ha -1 was classified as harmless (class 1) to both pupae and adults of the parasitoid. The effect of chlorantraniliprole at a rate of 20 to 50 g a.i. ha -1 varied from harmless (class 1) to slightly harmful (class 2) to the adults of T. pretiosum. Chlorantraniliprole 10 + lambda-cyhalothrin at 5 g a.i. ha -1 was classified as harmless (class 1) to the pupae and moderately harmful (class 3) to the adults of T. pretiosum. On the contrary, the highest rate of chlorantraniliprole 50 + lambda-cyhalothrin tested (i.e., 25 g a.i. ha -1 ) was classified as slightly harmful (class 2) to the pupae and harmful (class 4) to the adults of the parasitoid. Similarly, increasing the application rate of spinosad and chlorfenapyr also exhibited an increase in toxicity. Spinosad at a rate of 24 g a.i. ha -1 was classified as slightly harmful (class 2) and harmless (class 1) to the pupae and adults of T. pretiosum, respectively. Spinosad at 96 g a.i. ha -1 was classified as both moderately harmful (class 3) and harmful (class 4) to the pupae of the parasitoid. Chlorfenapyr at a rate of 192 g a.i. ha -1 was classified as both slightly harmful (class 2) and moderately harmful (class 3) to the pupae of T. pretiosum, whereas chlorfenapyr at 336 g a.i. ha -1 was categorized as slightly harmful (class 3) and harmful (class 4) to the pupae. These results indicate that an increase in the rate of insecticide affected T. pretiosum negatively. Therefore, higher insecticide rates should only be adopted when strictly necessary to control the target pest, because they might compromise the biological pest control process in the field. ResumoO presente estudo avaliou o efeito de diferentes taxas de clorantraniliprole, clorantraniliprole + lambdacialotrina, espinosade, e clorfenapir na seletividade para as pupas e adultos de Trichogramma pretiosum. O efeito negativo da maioria dos inseticidas testados nos parasitoides foi diretamente proporcional à dose do inseticida aplicado. O clorantraniliprole na dose de 10 g a.i. ha -1 foi classificado como seletivo (classe 1) para pupas e adultos do parasitoide. O efeito do clorantraniliprole na dose de 20 a 50 g a.i. ha -1 variou de seletivo (classe 1) a levemente prejudicial (classe 2) aos adultos de T. pretiosum. Clorantraniliprole 10 + lambda-cialotrina a 5 g a.i. ha -1 foi classificado como seletivo (classe 1) para as pupas e moderadamente prejudicial (classe 3) aos adultos de T. pretiosum. Ao contrário, a dose mais alta de clorantraniliprole 50 + lambda-cialotrina testada (isto é, 25 g a.i. ha -1 ) foi classificada como moderadamente prejudicial (classe 3) para as pupas e nociva (cla...

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Section: Discussionsupporting

confidence: 56%

Section: Discussionsupporting

confidence: 54%

Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)

Grande

Braz

Bueno

et al. 2018

SCA

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“…However, this same product, used in the same dosage of this study, can vary from harmless to harmful, depending on the developmental stage of the natural enemy (Souza, Carvalho, Moura, Couto & Maia, 2014). Parasitoid pupae and larvae might be more resistant to pesticides, compared to adults, because they develop inside the host egg, which is protected against insecticides by the chorion (Stecca, Bueno, Pasini, Silva, Andrade, & Filho, 2016).…”

Section: Discussionmentioning

confidence: 99%

Selectivity of Insecticides Against Telenomus podisi Ashmead (Hymenoptera: Platygastridae) on Corn

Feltrin-Campos¹,

Fernandes²,

Masson³

et al. 2018

JAS

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Use of synthetic insecticides remains main control strategy for percevejo-marrom (Euschistus heros) in corn. However, indiscriminate use of these products can have adverse effects on the environment and human health. Thus, incorporation of bio-agents like Telenomus podisi a preferred option in corn pest management. Study was conductedto evaluate the effects of insecticides application on T. podisi mortality rates, the number of eggs parasitized by the F0 generation, and number of emergent F1 parasitoids. The insecticides tested were: imidacloprid+bifenthrin, bifenthrin+carbosulfan, thiametoxam+lambda-cyhalothrin, acephate, bifenthrin, and imidacloprid at the highest concentrations indicated for corn. Each insecticide was classified according to its selectivity, based on the methodology proposed by IOBC/WPRS. Only imidacloprid did not affect parasitoid survival however the parasitism rates of F0 females, were affected, classifying this product as slightly harmful for this biological trait. Regarding parasitoid emergence (F1), thiametoxam+lambda-cyhalothrin was classified as moderately harmful, while bifenthrin+carbosulfan and bifenthrin were considered harmful, no parasitism occurred. Thus the evaluated insecticides were classified as slightly harmful to the parasitoid T. podisi under laboratory conditions for the biological characteristics evaluated. Further studies under semi-field and field conditions are needed in order to confirm these toxicity levels on T. podisi.

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“…To date, few studies in Brazil have assessed the selectivity of pesticides registered for soybean crops in egg parasitoids of hemipterans (Stecca et al 2017). Most selectivity tests focus on egg parasitoids of lepidopterans (Carmo et al 2009, Vieira et al 2012, Magano et al 2013, Stecca et al 2016). Thus, this study aimed to assess the selectivity of pesticides registered for soybean crop on the stink bug egg parasitoids T. podisi and T. basalis in adult stage.…”

Section: Abstract Resumomentioning

confidence: 99%

“…The major share of herbicide glyphosate on the world market is attributed to its broad spectrum of action and the advent of soybean cultivars resistant to this herbicide molecule (Shaner 2000). Stecca et al (2016) classified the glyphosate isopropylamine salt as selective to T. remus, when adult parasitoids were exposed to the pesticide applied on glass plates, highlighting its differentiated selectivity to parasitoid species.…”

Section: Treatmentmentioning

confidence: 99%

Selectivity of pesticides registered for soybean crop on Telenomus podisi and Trissolcus basalis

Zantedeschi

Grützmacher

Pazini

et al. 2018

Pesqui. Agropecu. Trop.

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The use of pesticides in the soybean crop may impair the biological control, if the products are not selective to Telenomus podisi and Trissolcus basalis, which are important stink bug egg parasitoids. This study aimed to assess the selectivity of 15 pesticides registered for soybean crop on adults of T. podisi and T. basalis. Three laboratory bioassays were performed, totaling 18 treatments, in a completely randomized design, with four replications. The insecticides (g or mL of a.i.) imidacloprid + beta-cyfluthrin (0.25 + 0.03), deltamethrin (0.06), thiamethoxam + lambda-cyhalothrin (0.27 + 0.35), acephate (1.87) and fenitrothion (1.25) are harmful to both parasitoids species. Flubendiamide (1.20), diflubenzuron (2.00), Bacillus thuringiensis (0.08) and lufenuron (0.12) are innocuous to both parasitoids. The fungicides azoxystrobin + flutriafol (0.31 + 0.31), trifloxystrobin + prothioconazole (0.37 + 0.44), pyraclostrobin + metconazole (0.33 + 0.12) and trifloxystrobin + cyproconazole (0.94 + 0.40) are innocuous to T. podisi, but slightly harmful to T. basalis. The herbicides glufosinate ammonium salt (0.50) and glyphosate isopropylamine salt (1.20) are innocuous to both parasitoids.

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Side-Effects of Glyphosate to the Parasitoid Telenomus remus Nixon (Hymenoptera: Platygastridae)

Cited by 27 publications

References 54 publications

Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)

Effect of increasing rate of insecticides on its selectivity for Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)

Selectivity of Insecticides Against Telenomus podisi Ashmead (Hymenoptera: Platygastridae) on Corn

Selectivity of pesticides registered for soybean crop on Telenomus podisi and Trissolcus basalis

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