Seletividade de inseticidas utilizados em cultura cafeeira para larvas de Cryptolaemus montrouzieri Mulsant

Rocha, Luiz Carlos Dias; Carvalho, Geraldo Andrade; Moscardini, Valéria Fonseca; Rezende, Denise Tourino

doi:10.1590/s0103-84782011000600004

Cited by 6 publications

(6 citation statements)

References 14 publications

(10 reference statements)

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“…The harmlessness of the two mineral oil formulations for predators was also related by Rocha et al (2011) that obtained low toxicity of mineral oil for Cryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae) larvae, confirming the low toxicity of this compound to predators. Thus, mineral oil can be used for controlling peach scales with no risk of impairing C. externa population in the orchards.…”

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confidence: 63%

Selectivity of pesticides used in peach orchards on the larval stage of the predator Chrysoperla externa (Hagen)

et al. 2013

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The selectivity of sixteen pesticides used in peach orchards in Brazil was evaluated on larvae of Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae) in laboratory (25±1ºC, 70±10% RH and 14 hours photophase). The bioassays consisted on the exposure of larvae to fresh dry pesticide film applied on glass plates. Lenght of each development stage, the mortality, the fecundity and fertility of survival adults were evaluated. Pesticides were classified according to the total toxic effect in harmless (<30%), slightly harmful (30-79%), moderately harmful (80-99%) and harmful (>99%), in conformity to "International Organization for Biological Control of Noxious Animals and Plants" (IOBC) recommendation. Only abamectin and deltamethrin caused significant prolongation in the post embryonic period. Fecundity and fertility of survival adults were not affected by any pesticide tested. The acaricide/insecticide abamectin, the two mineral oils, the fungicides mancozeb, dodine, azoxystrobin, captan, mancozeb + cooper oxichloride and pholpet, and the herbicide ghlyphosate were harmless; the fungicide tebuconazole was slightly harmful; the insecticide deltamethrin was moderately harmful; and the insecticides malathion, dimethoate and phosmet, and the herbicide paraquat dichloride were harmful to C. externa larvae.

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confidence: 63%

Selectivity of pesticides used in peach orchards on the larval stage of the predator Chrysoperla externa (Hagen)

et al. 2013

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“…Most of the studies available in the literature on the selectivity of insecticides to the natural enemies of the coffee tree, approach the selectivity in favor of predators, such as the predatory wasps of leaf miner (GUSMÃO et al, 2000;FRAGOSO et al, 2001), chrysopides (VILELA et al, 2010) and lady bug (ROCHA et al, 2010;. In other cultures, studies have shown that cartap may reduce parasitism (PASINI et al, 2017) and affect the sex ratio (CARVALHO et al, 2003) of Trichogramma pretiosum Riley in tomato.…”

Section: Resultsmentioning

confidence: 99%

“…Integrated pest management has one of its basic components in the selectivity of insecticides, allowing the preservation of natural enemies. Studies on the selectivity of phytosanitary products recorded for coffee cultivation have been specifically developed in favor of predators (ROCHA et al, 2010;VILELA et al, 2010;CASTILHOS et al, 2017), and there is a lack of information about the effects on parasitoids.…”

Section: Methodsmentioning

confidence: 99%

50 Management of Coffee Leaf Miner: Spray Volume, Efficacy of Cartap Hydrochloride and Impact on Parasitism

Melo

Raetano²,

Nery

et al. 2019

C.Sci.

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The leaf miner is a key pest of coffee and the use of insecticides for its control results in high water consumption. The objective in this study was to evaluate the quali-quantitative aspects of reduced spray volumes with and without the addition of adjuvant, the efficacy of the insecticide cartap hydrochloride in the control of the pest and its effects on the parasitism. Two experiments were carried out in coffee plantations in São Desiderio, BA. Initially, solution of Brilliant Blue tracer (0.15% p v-1) of the 43, 112, 146 and 309 L ha-1 volumes was sprayed with and without the soybean oil methyl ester adjuvant (0.25 % v v-1). Before spraying, water-sensitive cards were fixed to the plants and subsequently used for analyze the droplet spectrum in Gotas 1.0 software. The tracer deposit was determined by spectrophotometry. Posteriorly, the insecticide cartap hydrochloride (0.5 kg a.i. ha-1) was applied in the same volumes and types of spray used in the first test. Infestation rates of pest and parasitism were evaluated before and after application of the insecticide. The quali-quantitative aspects of the sprays were affected by the volume of spray applied, by the adjuvant and by the interaction of the factors. The intermediate volumes yielded better spraying quality without the presence of the adjuvante, with higher number and desity of drops. The spraying volume affected the depoisto the Brilliant Blue tracer in a linear and positive form. The efficacy of the insecticide was prolonged with the lowest volume spray and with adjuvant and its impact on parasitism varied with the volume applied and time after application.

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“…Researchers as TIWARI et al (2020), GUPTA (2013); ROCHA et al (2011) show the effect of insecticides belonging to the chemical neonicotinoids group, in the control of pests and diseases plants, with different active principle, being acetamiprid, dinotefuran, imidacloprid (FRANK; LEBUDE, 2020) and tiametoxam (SCORZA JÚNIOR; RIGITANO, 2012). The neonicotinoids act like agonists in the nicotinic post-synaptic receptor of acetylcholine (nAChR) in insects (TOMIZAWA;CASIDA, 2005apud ROCHA et al, 2011.…”

Section: Introductionmentioning

confidence: 99%

Insecticides action of neonicotinoids group in fall armyworm (Spodoptera frugiperda) control on bean leaves (Phaseolus vulgaris)

Stanghini

Martinez²,

Plens

2022

Arq. Inst. Biol.

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Among several factors that impact the bean culture productivity there are pest insects, which affect the plant since seeding until postharvest, causing loss in the culture yield. The fall armyworm (Spodoptera frugiperda) stands out among the main pests of common bean (Phaseolus vulgaris). The aim of this work was to evaluate the effectiveness of insecticides of the neonicotinoid group in the control of the fall armyworm in the bean crop, comparing dinotefuran, acetamiprid, thiamethoxam and imidacloprid performance. Experimental design was composed of blocks entirely randomized, with 9 treatments and 10 replicates. Three caterpillars, at the stage of second instar, were used in each experiment, focusing on the ingestion of leaves containing the treatments. Evaluations were realized in the intervals of 1, 3, 6 and 8 days after every application, counting the number of caterpillars alive in the Petri's dish, attributing visual notes on bean leaves, according to the foliar area affected (consumed). The dinotefuran treatment with the highest dose presented superior efficiency at 80% in the first evaluation. The thiamethoxam treatment with the lowest dose, in the latest analyses, showed efficient superior at 90%. The major doses of all treatments presented efficiency higher than 80% in the last evaluations, being efficient in the S. frugiperda control.

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Seletividade de inseticidas utilizados em cultura cafeeira para larvas de Cryptolaemus montrouzieri Mulsant

Cited by 6 publications

References 14 publications

Selectivity of pesticides used in peach orchards on the larval stage of the predator Chrysoperla externa (Hagen)

Selectivity of pesticides used in peach orchards on the larval stage of the predator Chrysoperla externa (Hagen)

50 Management of Coffee Leaf Miner: Spray Volume, Efficacy of Cartap Hydrochloride and Impact on Parasitism

Insecticides action of neonicotinoids group in fall armyworm (Spodoptera frugiperda) control on bean leaves (Phaseolus vulgaris)

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