Selectivity of insecticide use in soybean crop to the predator Podisus nigrispinus (Hemiptera: Pentatomidae)

Stecca, Cristiane dos Santos; Silva, Débora Mello da; Bueno, Adeney de Freitas; Pasini, Amarildo; Denez, Marlon Dias; Andrade, Karine

doi:10.5433/1679-0359.2017v38n6p3469

Cited by 8 publications

(6 citation statements)

References 14 publications

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“…Bifenthrin had a similar effect to our results when tested with a full concentration series bioassay in the laboratory, proving highly toxic to adults of Geocoris punctipes (Say) (Hemiptera: Geocoridae) and Orius insidiosus (Say) (Hemiptera: Anthocoridae) [63]. Pyrethroids are harmful to Podisus nigrispinus (Dallas) (Hemiptera: Pentatomidae), with high toxicity to nymphs and adults at the highest recommended rate in soybeans, even when mixed with low-risk insecticides [64].…”

Section: Discussionsupporting

confidence: 79%

“…If we consider only the physiological hazard, we eliminate all the other factors that can minimize the effect of these chemicals on non-target organisms in the field. These factors can potentially make pesticides more selective, based on, for example, formulation, placement, dosage and timing [64]. If the ecological risks are considered, there is a chance to match the methods to actual conditions in the tomato fields.…”

Section: Discussionmentioning

confidence: 99%

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Risk Assessment of Insecticides Used in Tomato to Control Whitefly on the Predator Macrolophus basicornis (Hemiptera: Miridae)

Matioli

Silva

Pazini

et al. 2021

Insects

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The generalist mirid predator Macrolophus basicornis may contribute to Integrated Pest Management (IPM) of Bemisia tabaci in tomato crops. It is important to know the compatibility of the chemicals used to control this pest with this promising biological control agent. Seven insecticides were tested to investigate their toxicity to the predator. For four of the products, the LC50 for adults were determined. Buprofezin, cyantraniliprole and spiromesifen did not cause lethality and were classified as harmless. Acetamiprid, bifenthrin, etofenprox + acetamiprid and pyriproxyfen + acetamiprid caused acute toxicity and were classified as harmful. LT50 for all harmful insecticides were relatively low, ranging from 1.8 to 3.2 days. Moreover, these four insecticides have low LC50, with acetamiprid (0.26 mg a.i. L−1) as the lowest, followed by bifenthrin (0.38 mg a.i. L−1), etofenprox + acetamiprid (4.80 mg a.i. L−1) and pyriproxyfen + acetamiprid (8.71 mg a.i. L−1). However, the calculated risk quotient (RQ) values demonstrated that these insecticides were mostly ecologically safe for this predator, except for acetamiprid, classified as slightly to moderately toxic. The present study can contribute to the use of M. basicornis as a biological control agent on tomato crops and to compatible use with the insecticides tested, according to IPM strategies.

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Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Risk Assessment of Insecticides Used in Tomato to Control Whitefly on the Predator Macrolophus basicornis (Hemiptera: Miridae)

Matioli

Silva

Pazini

et al. 2021

Insects

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“…However, it does not affect the biological control agent due to the limited ingestion of the insecticide by the beneficial arthropods. Similar results have been observed in Podisus nigrispinus (Hemiptera: Pentatomidae) (STECCA et al, 2017). In the present study, the mixture of chlorantraniliprole and lambda-cyhalothrin affected T. pretiosum more than chlorantraniliprole alone.…”

Section: Discussionsupporting

confidence: 77%

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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“…Chemical control of aphids is often carried out by farmers by applying the pyrethroid insecticide deltamethrin (Bai, Zhou, & Wang, ), a product considered of high toxicity (Rehman et al, ) for various insect orders, such as Orthoptera, Thysanoptera, Lepidoptera, Coleoptera, Diptera, Hemiptera, among others (Baptista, Carvalho, Carvalho, Carvalho, & de, Souza Bueno Filho, ; Hughes et al, ; Stecca et al, ). Deltamethrin is considered to be the pyrethroid most toxic to vertebrates (Santos, Areas, & Reyes, ).…”

Section: Introductionmentioning

confidence: 99%

Control of Brevicoryne brassicae (Hemiptera: Aphididae) with extracts of Agave americana var. Marginata Trel. in Brassica oleracea crops

Pereira

Cardoso

Araújo

et al. 2018

Annals of Applied Biology

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Alternative methods of pest control can and should be encouraged, especially those that consider the reality of smallholder family farmers. Here, we evaluated the potential of Agave americana (agave) extracts for the control of the aphid Brevicoryne brassicae in cabbage (Brassica oleracea L. var acephala) in the field and laboratory. The field experiments consisted of the evaluation of the proportion of dead aphids on cabbage plants after application of agave extracts. In the field, agave mixed with cow milk caused mortality above 80% and was the most effective extract. Agave mixed with water and agave mixed with ethanol elicited mortality above 60%. In the laboratory, we evaluated the mortality of aphids after the application of different concentrations of aqueous agave extracts; the commercial insecticide deltamethrin was included as positive control. Evaluation took place at 3, 6, 12, 24, 48 and 72 hr after applying the treatment. As expected, deltamethrin was the most effective treatment. However, agave extract at concentrations of 0.750 and 0.500 g/mL caused >70% mortality 3 hr after application. We conclude that A. americana extracts decreased aphid populations and is a promising alternative to the commercial insecticide against aphids in cabbage. K E Y W O R D S agave, aphids, biopesticides, horticulture, plant extracts

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Selectivity of insecticide use in soybean crop to the predator Podisus nigrispinus (Hemiptera: Pentatomidae)

Cited by 8 publications

References 14 publications

Risk Assessment of Insecticides Used in Tomato to Control Whitefly on the Predator Macrolophus basicornis (Hemiptera: Miridae)

Risk Assessment of Insecticides Used in Tomato to Control Whitefly on the Predator Macrolophus basicornis (Hemiptera: Miridae)

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

Control of Brevicoryne brassicae (Hemiptera: Aphididae) with extracts of Agave americana var. Marginata Trel. in Brassica oleracea crops

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