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Effects of insecticide and acaricide mixtures on Diaphorina citri control Rev. Bras. Frutic.
Vechia,Jaqueline Franciosi Della; Andrade,Daniel Junior de; Azevedo,Rafael Gomes de; Ferreira,Marcelo da Costa.
Abstract Pesticide mixtures are commonly used to reduce production costs in agriculture. However, the consequences of such practice towards target organisms are still unknown in most cases. Therefore, this study aimed to evaluate the effects of combinations of insecticides and one worldwide used acaricide on the control of Diaphorina citri (Asian citrus psyllid). All insecticides alone (lambda-cyhalothrin+thiamethoxam, phosmet, and imidacloprid) and in combination with spirodiclofen were efficient in controlling D. citri (> 80%). No significant effects were found for combinations of lambda-cyhalothrin+thiamethoxam and phosmet insecticides with spirodiclofen. Conversely, imidacloprid caused an antagonistic effect on the control of D. citri when mixed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Huanglongbing – HLB; Antagonist effect; Tank mixture; Asian citrus psyllid; Citrus leprosis.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000100401
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Interactions of Saflufenacil with Other Herbicides Promoters of Oxidative Stress to Control Joyweed1 Planta Daninha
TREZZI,M.M.; DIESEL,F.; KRUSE,N.D.; XAVIER,E.; PAZUCH,D.; PAGNONCELLI JR.,F.; BATISTEL,S.C..
ABSTRACT This study was conducted to evaluate the efficacy of joyweed (Alternanthera tenella) control and antagonistic or synergistic potentials of saflufenacil herbicide applied alone or tank mixed with paraquat, metribuzin and clomazone. The experiment was conducted in a greenhouse in a completely randomized design with four replications. Treatments consisted of saflufenacil herbicide doses (0, 0.4, 0.7, 1.4, 2.1 and 2.8 g ha-1) applied isolated or associated with paraquat (0, 1 and 3 g ha-1), metribuzin (0, 38.4 and 105.6 g ha-1) or clomazone (0, 288 and 504 g ha-1). Visual control was determined at 14 and 21 days after spraying the herbicides (DAA) and shoots dry matter at 21 DAA. Colby's method was used to calculate the response from herbicide...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alternanthera tenella; Tank mixture; Protox inhibitors; Photosystem I inhibitors; Photosystem II inhibitors; Carotenoids synthesis inhibitors.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000200319
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Selectivity of chemical weed control systems in conventional cotton Planta Daninha
Arantes,J.G.Z.; Constantin,J.; Oliveira Jr.,R.S.; Braz,G.B.P.; Barbosa,C.A.S.; Brugnera,P.; Oliveira Neto,A.M.; Gemelli,A..
Cotton is highly susceptible to the interference imposed by weed community, being therefore essential to adopt control measures ensuring the crop yield. Herbicides are the primary method of weed control in large-scale areas of production, and usually more than one herbicide application is necessary due to the extensive crop cycle. This study aimed to evaluate the selectivity of different chemical weed control systems for conventional cotton. The experiment took place in the field in a randomized block design, with twenty nine treatments and four replications in a split plot layout (adjacent double check). Results showed that triple mixtures in pre-emergence increased the chance of observing reductions in the cotton yield. To avoid reductions in crop yield,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gossypium hirsutum; Application modalities; Tank mixture.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000400018
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SELECTIVITY OF FOMESAFEN TO COTTON Planta Daninha
OLIVEIRA NETO,A.M.; CONSTANTIN,J.; OLIVEIRA JR.,R.S.; BARROSO,A.L.L.; BRAZ,G.B.P.; GUERRA,N.; GHENO,E.A..
ABSTRACT The aim of this work was to evaluate the selectivity of fomesafen alone or in a tank mixture with other preemergent herbicides, with or without S-metolachlor application in early postemergence in cotton plant, cultivar DP 555 BG RR(r). The design utilized was a randomized complete block, organized in a split-plot arrangement, with four replications. For that, 24 herbicides were evaluated with fomesafen (0.45 and 0.625 kg ha-1), prometryn (1.25 kg ha-1), diuron (1.25 kg ha-1), trifluralin (1.8 kg ha-1), and S-metolachlor (0.77 kg ha-1), applied as preemergent, with or without S-metolachlor (0.77 kg ha-1) applied in early postemergence. The variables evaluated were: phytotoxicity, insertion height of the first reproductive branch, plant height,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chemical control; Protox inhibitor; Tank mixture; Preemergence.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000400759
Registros recuperados: 4
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