Contrôle do tripes causador do prateamento das fôlhas do amendoim, por meio de inseticidas

Almeida, Pedro Rodrigues de; Arruda, Hermano Vaz de

doi:10.1590/s0006-87051962000100039

Cited by 8 publications

(2 citation statements)

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“…Symptoms of Thrips attack are visible after opening the leaflets, when the leaves show deformation, curling and silvering. This damage impairs light absorption by the plant, reducing photosynthesis and, consequently, the development and production of peanut (Almeida and Arruda, 1962). In addition, the physical damage of thrips to leaves makes plant susceptible to attack by other phytopathogens, causing diseases commonly called late leaf spot [caused by Cercosporidium personatum (Berk.…”

Section: Introductionmentioning

confidence: 99%

Control of thrips (Enneothrips flavens Moulton.) with synthetic and biological insecticides in different peanut genotypes

Michelotto¹,

Carrega

Pirotta³

et al. 2019

Aust J Crop Sci

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In peanut, pests are controlled by application of insecticides throughout the crop cycle, boosting production costs. This study compared the control of thrips (Enneotrhips flavens Moulton) in 10 peanut genotypes by biological and synthetic insecticides in the field in tropical area in Southeastern Brazil (21°13’29.9’’S 48°54’33.0’’W). The experiment was arranged in a randomized block, 10 x 3 factorial design with three replications. The first factor corresponded to 10 peanut genotypes and the second to different insecticides (synthetic, biological and control). The plants were evaluated 36, 44, 51, 59, 65, 72, and 79 days after sowing to determine the number of thrips individuals and the damage on leaflets caused by E. flavens. The plant height (cm), branch length (cm) and pod yield (kg ha-1) were also determined. The data were subjected to analysis of variance and averages compared by Tukey’s test. In prior evaluation carried out before the start of the applications of insecticides (25 DAS), natural infestation of thrips was observed in all genotypes. The genetic variability of lines L. 386 and L. 314 and cultivar IAC 113 was not significant, whereas yield difference was not observed among treatments of insecticides and control, showing tolerance to E. flavens. The synthetic insecticide Engeo PlenoTM showed of 39% higher efficiency (as average) for controlling thrips in peanut. The insecticides Beauveria bassiana (Bals.) (AUIN®) and Metarhizium anisopliae (Metch.) (GR-INN®) have potential to control E. flavens in peanut, but further studies are needed to better define the application date and products doses.

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Section: Introductionmentioning

confidence: 99%

Control of thrips (Enneothrips flavens Moulton.) with synthetic and biological insecticides in different peanut genotypes

Michelotto¹,

Carrega

Pirotta³

et al. 2019

Aust J Crop Sci

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“…Os danos às plantas ficam visíveis somente após a abertura dos brotos, quando as folhas apresentam deformações nítidas, encarquilhamento e prateamento. Esses danos dificultam a absorção de energia luminosa, levando a uma menor realização de fotossíntese ocasionando, assim, uma redução do desenvolvimento das plantas e, consequentemente, da produção (ALMEIDA; ARRUDA, 1962). Plantas com resistência a insetos e ácaros revelam-se como o método mais econômico de combate às pragas, todavia, essas cultivares devem ser competitivas em produtividade para alcançar maior sucesso no mercado (CAMPBELL;WYNNE, 1980).…”

Section: Introductionunclassified

RESISTANCE genotypes peanut Arachis hypogaea, GROWTH HABIT OF STANDING, TO THE silvering thrips E. Flavens AND PRODUCTIVE POTENTIAL

Júnior¹,

Perozini²,

Thomas

2013

Nucleus

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RESUMO:O amendoim Arachis hypogaea L. é uma das principais oleaginosas cultivadas no Brasil, porem o tripés do prateamento Enneothrips flavens é considerado uma praga limitante na produção e o uso de cultivares resistente evita ou reduz a aplicação de inseticida proporcionando uma maior segurança e lucratividade à atividade. O trabalho foi realizado com os objetivos de avaliar a resistência aos tripés, com o uso de genótipos de amendoinzeiro de habito de crescimento ereto e o potencial produtivo RESISTANCE TO YIELD PEANUT ARACHIS HYPOGAEA, GROWTH HABIT OF STANDING, THE THRIPS E. FLAVENS AND POTENTIAL PRODUCTION SUMMARY: The Arachis hypogaea L. is a major oilseed crops in Brasil, however the tripods of silveringEnneothrips flavens is considered a pest limiting the production and use of resistant cultivars prevents or reduces insecticide application providing greater security and profitability to the activity. The study was used to evaluate the resistance to tripods, using genotypes of groundnut upright growth habit and yield potential of peanut genotypes . The experiment was carried out at the Teaching and Research of the Fazenda de Ensino e Pesquisa da Faculdade de Engenharia de Ilha Solteira -UNESP, on 12/11/2010 at sowing using genotypes IAC -Tatu -ST , IAC 81-12 , IAC 88-1 , IAC 88-2 , IAC 22 and IAC 24 , upright growth habit and without insecticide . Sampling started on 29/11/2010 and the ten subsequent performed on a weekly basis, there were scores of adults and nymphs of tripods ; ratings of symptoms of damage , leaf area , plant height and yield. The design adopted in the experiment was a completely randomized design with four replications. Each experimental unit consisted of 4 rows of 5 m long. The largest population of E. flavens occurs from 30 to 72 days after plant emergence. The IAC 88-1 and IAC -Tatu -ST are less infested by E. flavens and IAC 88-2 shows less signs of damage caused by this pest. The IAC IAC 88-2 and 81-12 have the highest yields and yields even with high infestations of E. flavens.

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Predator–Prey Interaction Between Xylocoris sordidus (Hemiptera: Anthocoridae) and Enneothrips enigmaticus (Thysanoptera: Thripidae)

de Oliveira,

Nascimento,

de Lacerda

et al. 2024

Neotrop Entomol

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Contrôle do tripes causador do prateamento das fôlhas do amendoim, por meio de inseticidas

Cited by 8 publications

References 1 publication

Control of thrips (Enneothrips flavens Moulton.) with synthetic and biological insecticides in different peanut genotypes

Control of thrips (Enneothrips flavens Moulton.) with synthetic and biological insecticides in different peanut genotypes

RESISTANCE genotypes peanut Arachis hypogaea, GROWTH HABIT OF STANDING, TO THE silvering thrips E. Flavens AND PRODUCTIVE POTENTIAL

Predator–Prey Interaction Between Xylocoris sordidus (Hemiptera: Anthocoridae) and Enneothrips enigmaticus (Thysanoptera: Thripidae)

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