Precipitação artificial após aplicação do inseticida clorantraniliprole associado com adjuvante em plantas de soja

Arrué, Adriano; Guedes, Jerson Vanderlei Carús; Storck, Lindolfo; Swarowsky, Alexandre; Cagliari, Deise; Burtet, Leonardo Moreira; Arnemann, Jonas André

doi:10.1590/0103-8478cr20120211

Cited by 11 publications

(9 citation statements)

References 11 publications

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“…The adjuvants can alter the physicochemical properties of the spray solution, thus altering factors such as wettability, adhesion, and spreading of spray droplets and contributing to better retention and penetration of the active ingredient (Azevedo & Castelani, 2013). However, this improvement has not been observed for all adjuvants; it depends on the product used and the biological target (Melo et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Study of the Effects of Adjuvants Associated With Insecticides on the Physicochemical Properties of the Spray Solution and Characterization of Deposits on Wheat and Maize Leaves Under Simulated Rain

Melo

Hunsche²,

Guedes

et al. 2019

Eng. Agríc.

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The association of adjuvants with phytosanitary products has been tested for several years but is commonly recommended without considering technical and scientific criteria. This study aimed to evaluate the influence of the association of insecticides with different adjuvants on surface tension, contact angle, coverage, hydrogen ionic potential (pH), and the formation of deposits exposed to rain. The insecticides thiamethoxam, imidacloprid, and lambda-cyhalothrin were tested at doses of 75 g ha-1 , 150 g ha-1 , and 150 g ha-1 , respectively, with a spray volume of 200 L ha-1. Break-Thru 240 ® , Break-Thru 233 ® , Break-Thru Union ® , Oleo FC Agraröl ® , and Naturo'il ® were added to each of these spray solutions. The results showed that the addition of adjuvants reduced the surface tension and contact angle, and consequently, increased droplet coverage. No deposit pattern was found in the thiamethoxam, imidacloprid, and lambda-cyhalothrin insecticides associated with the adjuvants and a higher amount of residue was observed on wheat leaves than on maize leaves. The use of adjuvants can be an alternative to improve the efficiency of insecticides, allowing the product to achieve its full control potential.

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Section: Introductionmentioning

confidence: 99%

Study of the Effects of Adjuvants Associated With Insecticides on the Physicochemical Properties of the Spray Solution and Characterization of Deposits on Wheat and Maize Leaves Under Simulated Rain

Melo

Hunsche²,

Guedes

et al. 2019

Eng. Agríc.

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show abstract

“…The insecticidal proteins present the characteristics of being highly toxic and specific, however, they require more time to the effective control (Bobrowski et al, 2003;Bravo et al, 2017). Insecticides of the group of anthranilic diamidases, which the active ingredient chlorantraniliprole belongs, bind to the insect's ryanodine receptors in the muscle cells, promoting uncontrolled calcium release due to the canal opening, causing muscle paralysis and the insect death (Cordova et al, 2006;Lahm et al, 2007;Arrue et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

Insecticides Management Used in Soybean for the Control of Anticarsia gemmatalis (Hübner, 1818) (Lepidoptera: Eribidae)

Fernandes¹,

Abreu²,

Christ³

et al. 2018

JAS

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The soybean is the main agricultural product produced in Brazil. Among the States, Rio Grande do Sul was the third largest producer in the 2017/2018 harvest. However, insects interfere on the productivity and provide an increase in the cost of production. The velvetbean caterpillar, Anticarsia gemmatalis (Hübner, 1818) (Lepidoptera: Eribidae) is considered one of the main leaf stripper caterpillars. The occurrence can completely fade, reflected in the grain yield. The chemical method is the main control adopted, however, due to the inadequate management of the crop, failures are observed frequently on the field. In this context, the insecticide management is considered an alternative, still little adopted, due to a lack of knowledge between the movement action and the susceptibility of the insect. Therefore, the objective was to evaluate the performance of insecticides used in the soybean crop for the control of A. gemmatalis under laboratory conditions. In the residual and direct contact bioassays, eight treatments with five replicates were used in a completely randomized design, with 2nd and 5th instar caterpillars of A. gemmatalis. The results showed that by residual contact during 24 hours, all the treatments with exception of the control had effectiveness in both instar mortality. The treatments flubendiamide + zeta-cypermethrin and zeta-cypermethrin after four hours application reached 100% of effectiveness. Thus, aiming an integrated pest management program, where it advocated the association of different control tactics, the insecticide management with flubendiamide + zeta-cypermethrin were effective with 100% of control efficiency in both instars.

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“…The mode of action is related to the active ingredient in each product. The chemical insecticides of the diamide group (flubendiamide and chlorantraniliprole) when in contact with the insect binds to the ryanodine receptors on muscle cells, causing calcium channels to open, leading initially the cessation of feeding, paralysis, and posteriorly its death (Cordova et al, 2006;Lahm et al, 2007;Arrue et al, 2014). In this way, the mode of action of diamids explains the delayed shock effect observed for both small and large caterpillars.…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of Insecticides to Control Small and Large Larvae of Helicoverpa armigera (Hübner, 1805) (Lepidoptera: Noctuidae)

Vieira¹,

Vieira²,

Silva³

et al. 2020

JAS

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Helicoverpa armigera (Hübner, 1805) (Lepidoptera: Noctuidae) is a cosmopolitan pest with wide geographical distribution in Brazil. This pest was officially registered in 2013 on cotton, soybean, corn, and some weeds, although this species may have been present in the country since 2008. The objective of this work was to evaluate the efficiency of eight insecticides (seven chemicals and a biological product) to control small and large H. armigera caterpillars. The experiment was conducted under laboratory conditions (T 22±1 °C; RH 70±10%; 12h photoperiod), with nine treatments (g a.i./ha dose): flubendiamide (72), chlorantraniliprole + lambda-cyhalothrin (30 + 15), chlorfenapyr (288), spinetoran (18), indoxacarb (120), emamectin benzoate (10), metomil (322.5), Bacillus thuringiensis (500), and control (water). A completely randomized design was used with four replications for each size of caterpillars (small and large), and each repetition (plot) consisted of five H. armigera caterpillars fed with bean leaves immersed in the different treatments evaluated. The larval mortality evaluations were performed at one, three, five, and seven days after contact with the treated bean leaves, determining the control efficiency (E%) through the formula of Abbott (1925). All chemical and biological treatments tested caused significant mortality of small and large H. armigera caterpillars, reaching a control percentage of 100% at seven days after treatment, demonstrating the possibility of using the insecticides tested to control this pest under field conditions.

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Precipitação artificial após aplicação do inseticida clorantraniliprole associado com adjuvante em plantas de soja

Cited by 11 publications

References 11 publications

Study of the Effects of Adjuvants Associated With Insecticides on the Physicochemical Properties of the Spray Solution and Characterization of Deposits on Wheat and Maize Leaves Under Simulated Rain

Study of the Effects of Adjuvants Associated With Insecticides on the Physicochemical Properties of the Spray Solution and Characterization of Deposits on Wheat and Maize Leaves Under Simulated Rain

Insecticides Management Used in Soybean for the Control of Anticarsia gemmatalis (Hübner, 1818) (Lepidoptera: Eribidae)

Effectiveness of Insecticides to Control Small and Large Larvae of Helicoverpa armigera (Hübner, 1805) (Lepidoptera: Noctuidae)

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