Métodos de destruição de restos de cultura do algodoeiro e sobrevivência do bicudo

Ribeiro, Edenilson Batista; Castellani, Maria Aparecida; Melo, Thiago Lima; Silva, Gustavo dos Santos; Vale, Willian Santos do; Santos, Alexsandra Sousa

doi:10.1590/s0100-204x2015001100001

Cited by 17 publications

(29 citation statements)

References 12 publications

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“…In the Distrito Federal and in the state of Goiás, nearly all boll weevils at the end of the crop did not remain protected within the dry bolls for more than 50 days, but probably left in search of shelter and food in the surrounding areas (Figure 3). This result reinforces the importance of destroying cotton stalks for boll weevil management, since, at any time, adults who have left the structures are able to colonize the regrowth of cotton plants after harvest (Paula et al, 2013;Ribeiro et al, 2015).…”

Section: Resultssupporting

confidence: 66%

Survival pattern of the boll weevil during cotton fallow in Midwestern Brazil

Pires

Pimenta

Mata

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to determine the survival pattern of the cotton boll weevil during fallow in Midwestern Brazil. The percentage of adults that remained in the cotton reproductive structures, the percentage of adults searching for shelters, and the longevity of adults fed on pollen and nectar as alternative food sources were determined. For this, four populations were sampled in cotton squares and bolls, totaling 11,293 structures, from 2008 to 2012. The emergency of cotton weevil adults was monitored from the collection of the structures until the next cotton season. In the laboratory, newly-emerged adults were fed on hibiscus or Spanish needle, and their life span was monitored individually. Most adults (85.73%) left the reproductive structures, regardless of the cotton plant phenology, up to 49 days after the structures were collected. One individual (0.0002%) from 5,544 adults was found alive after the fallow period. The diet with hibiscus and Spanish needle provided adult longevity of 76±38 days, which was enough time for adults to survive during the fallow period. Most of the boll weevils leave the cotton structures at the end of harvest, survive using alternative food sources, and do not use cotton plant structures as shelter during the legal cotton fallow period in Midwestern Brazil.Index terms: Anthonomus grandis, Gossypium hirsutum, alternative food, cotton bolls. Padrão de sobrevivência do bicudo-do-algodoeiro durante o pousio na região Centro-Oeste do BrasilResumo -O objetivo deste trabalho foi determinar o padrão de sobrevivência do bicudo-do-algodoeiro durante o pousio no Centro-Oeste do Brasil. Foram determinadas as percentagens de adultos das populações que permaneceram nas estruturas reprodutivas do algodoeiro, as percentagens de adultos que saíram para os refúgios, e a longevidade dos adultos alimentados com pólen e néctar como fontes de alimentos alternativos. Para tanto, foram amostradas quatro populações em botões florais e maçãs do algodoeiro, que totalizaram 11.293 estruturas, de 2008 a 2012. A emergência de adultos do bicudo-do-algodoeiro foi monitorada desde a coleta das estruturas até a próxima safra de algodão. Em laboratório, adultos recém-emergidos foram alimentados com hibisco ou picão, e sua longevidade foi monitorada individualmente. A maioria dos adultos (85,73%) saiu das estruturas reprodutivas, independentemente da fenologia do algodoeiro, até 49 dias após as estruturas terem sido coletadas. Um indivíduo (0,0002%) entre 5.544 adultos foi encontrado vivo após o período da entressafra. A dieta de hibisco e picão permitiu uma longevidade de 76±38 dias, tempo suficiente para manter os adultos vivos durante a entressafra. A maioria dos bicudos-de-algodoeiro deixa as estruturas reprodutivas do algodoeiro no final da colheita, sobrevive com alimento alternativo e não usa as estruturas da planta como abrigo durante o período legal de pousio na região Centro-Oeste do Brasil.Termos para indexação: Anthonomus grandis, Gossypium hirsutum, alimento alternativo, maças ...

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Section: Resultssupporting

confidence: 66%

Survival pattern of the boll weevil during cotton fallow in Midwestern Brazil

Pires

Pimenta

Mata

et al. 2017

Pesq. agropec. bras.

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“…In general, lower regrowth percentages were observed in all treatments with herbicides, compared with the untreated control, except for LEM-BA in 2014. In the Brazilian Cerrado region, the absence of more effective control, as observed in the present study, can favor the survival of boll weevil (Ribeiro et al, 2015), which is the reason why the Brazilian legislation of plant sanitary defense of the states Goiás and Bahia recommends that, during the sanitary fallow period, there should be no cotton stalk regrowth, i.e., all plants should be destroyed by chemical (herbicide) or physical (mechanical) processes.…”

Section: Resultsmentioning

confidence: 55%

“…Cotton stalk destruction after harvest is a very important strategy of the integrated pest management (Lima et al, 2013;Grigolli et al, 2015). After harvest, crop residues and stalks can be eliminated by soil tillage implements such as plow and plowing harrow (Bianchini & Borges, 2013;Ribeiro et al, 2015;Sofiatti et al, 2015), although devices have been developed to improve the operational capacity of the destruction and promote minimum soil mobilization (Sofiatti et al, 2015). Nevertheless, this form of destruction, besides having low operational efficiency, does not always conform to the principles of the no-till system (NTS), a conservation system that favors the mitigation of greenhouse gases (Corbeels et al, 2016;Sant-Anna et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Chemical destruction, through herbicides, is an option to control stalk regrowth (Yang et al, 2011) and, besides having higher operational efficiency, it does not compromise the NTS. Stalks of conventional cultivars not transgenic for the resistance to herbicides can be controlled with glyphosate and 2,4-D (Yang et al, 2006;Greenberg et al, 2007;Ribeiro et al, 2015). However, chemical destruction of glyphosate-resistant cotton stalks has been limited due to the ineffectiveness of this herbicide for these transgenic cultivars.…”

Section: Introductionmentioning

confidence: 99%

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Chemical control of stalk regrowth in glyphosate-resistant transgenic cotton

Ferreira

Bogiani

Sofiatti

et al. 2018

Rev. bras. eng. agríc. ambient.

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Cotton stalk regrowth must be controlled after harvest to ensure the phytosanitary quality and sustainability of cotton farming systems. Mechanical destruction generally does not conform to the no-tillage system, and the control of cotton stalk regrowth by herbicides is little studied in Brazil. The objective of this study was to evaluate the efficiency of herbicides to control glyphosate-resistant transgenic cotton stalk regrowth. The study was conducted in three environments of the Brazilian Cerrado region, two in Santa Helena de Goiás (SHGO), during 2013 and 2014, and one in Luís Eduardo Magalhães (LEM-BA) in 2014. In each of the three environments, the experiment was carried out in a randomized complete block with four replications. Each experiment consisted of different combinations of herbicides and one untreated control. Cotton stalk regrowth was influenced by the three environments. Two sequential 2,4-D amine applications, each with 1,000 g ha-1 of acid equivalent, resulted in better cotton stalk destruction, albeit with 4.9, 16.9 and 36.9% of cotton stalk regrowth in SHGO 2013 and 2014, and LEM-BA 2014, respectively. A single application of 2,4-D amine and a 2,4-D amine spraying followed by the application of carfentrazone-ethyl, paraquat, saflufenacil, paraquat + diuron or glufosinate-ammonium are not effective to control glyphosate-resistant transgenic cotton stalk regrowth. The best destruction of cotton stalk regrowth occurs with two sequential applications of 2,4-D amine.

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“…Cotton crop (Gossypium hirsutum L.) is attacked by a wide variety of phytophagous arthropods with potential to cause serious damage to culture (RIBEIRO et al, 2015). Among these, the boll weevil Anthonomus grandis Boheman (Coleoptera: Curculionidae) is a key pest of cotton in the new world (SALVADOR et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Spatial and temporal distribution of cotton squares and small cotton bolls fallen on ground after damage by boll weevil and the efficiency of the equipment used to collect them

2017

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Spatial and temporal distribution of cotton squares and small cotton bolls fallen on ground after damage by boll weevil... Ciência Rural, v.47, n.7, 2017. INTRODUCTIONCotton crop (Gossypium hirsutum L.) is attacked by a wide variety of phytophagous arthropods with potential to cause serious damage to culture (RIBEIRO et al., 2015). Among these, the boll weevil Anthonomus grandis Boheman (Coleoptera: Curculionidae) is a key pest of cotton in the new world (SALVADOR et al., 2014). This insect has spread throughout the cotton-producing regions of Brazil, which has led to a severe increase in the cost of production due to economic losses arising from the insect feeding behavior and oviposition on the cotton squares and bolls (SILVA & RAMALHO, 2013).The boll weevil is mainly controlled by application of chemical insecticide during the flowering period to protect cotton squares (SILVA & RAMALHO, 2013;SILVA & SILVA, 2015). Important alternatives to cotton insecticides include various types of cultural control tactics, as suggested elsewhere (GREENBERG et al., 2010).The collection of cotton squares and cotton bolls damaged by weevil and fallen on the ground is one such tactic that promises to be of great value to RURAL ENGINEERING

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Métodos de destruição de restos de cultura do algodoeiro e sobrevivência do bicudo

Cited by 17 publications

References 12 publications

Survival pattern of the boll weevil during cotton fallow in Midwestern Brazil

Survival pattern of the boll weevil during cotton fallow in Midwestern Brazil

Chemical control of stalk regrowth in glyphosate-resistant transgenic cotton

Spatial and temporal distribution of cotton squares and small cotton bolls fallen on ground after damage by boll weevil and the efficiency of the equipment used to collect them

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