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Aenda questions suspension of 63 fungicides to fight soy rust in Brazilqrcode

Jan. 24, 2017

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Jan. 24, 2017
The Brazilian Association of Generic Agrochemicals has questioned the methods used by the Technical Commission of Reevaluation of Mapa for the effectiveness of registered products to check their efficacy in controlling Asian rust (Phakopsora pachyrhizi). 
 
Towards the end of last year, Mapa decided to suspend the recommendation in case of 63 fungicides that it claimed were no more proving efficient.  
 
According to the measure, holders shall exclude these 63 recommendation products within a period of 90 days, beginning December 19, 2016.
 
According to the executive-director of the entity, Tulio de Oliveira, the decision was strange since in the trials, Embrapa was applied in isolation and as per protocols that were not part of the recommendations described in the guidelines for the use of these products. “These trials were carried out with the full incidence of spores on all sides and exponential growth of tubular filaments,” Tulio de Oliveira said. 
 
According to Aenda, these 63 products had as active ingredients chemical groups such as triazole, strobilurin, benzimidazole, quaternary ammonia and mixtures of the same. 
 
“The agronomists of the country did not expect punishment. They need to understand the technical way to deal with a disease that impacts the major crop in the country. Even though the punishment is innocuous, the market will quickly purge the products that do not have the same level of effectiveness,” the director said.
 
He further said the same products now up for suspension were earlier praised for their performance in combating the fungi and continue to be found useful in some scenarios when associated with other chemical groups. 
 
He said it was weird that the Commission had not suspended other formulated products that are combined with certain different chemical products. 
 
“The farmer does that by using the mixture in tank, according to the understanding of the management. It is also used on the purged products. Embrapa also surveyed that nearly 90 percent of the farmers use the mixture in a tank. Do you know why? Because it is cheaper than using the combination product,” he explained.
 
Tulio affirmed that the real problem is that the fungus found in Brazilian soybean was developing muscle and adapting or even resisting to the fungicides. 
 
“Some chemical groups launched more recently have shown good efficacy, but unfortunately, they will also be defeated. Nobody wants to fool anybody. May Embrapa forgive us, but now is the time to change the conception of curative trials and search for intelligent management with certain cultural practices and rational use of the products, perhaps in some regional packages.” 
 
Check the list of suspended products:
 
ADANTE
ALTERNE
APICE
ARCADIA
ARRAY
ARTEA
BAND
BRIO
BUMPER
BURAN
BURGON
CELEIRO
CONSTANT
EGAN
ELITE
ENVOY
ERRADICUR
EXCOLHA
FEGATEX
FLAMA
FLEXIN
FOLICUR
GUAPO 
ICARUS
JUNO
JUWEL
KEEP
KONAZOL 
MIRADOR
ORANIS
ORIUS 250 EC 
PALISADE
PRIORI
PRIORI TOP
QUADRIS
RIVAL 200 EC
RIVAX
SCORE
SHAR CONAZOL
SHAR-TEB
SIMBOLL 125 SC 
SKIP 125 SC
SOPRANO 125 SC
STRATEGO 250 EC
SYSTEMIC
SYSTHANE 250 EC
SYSTHANE EC
TACORA 250 EW
TEBUCO NORTOX
TEBUCONAZOL 200 EC AGRIA
TEBUCONAZOLE CCAB 200 EC
TEBUFORT
TEBUHELM
TEBUZOL 200 EC
TENAZ 250 SC
TREASURE
TRIADE
TRIFOLI
TRINITY 250 SC
VERDADERO 600 WG
VIRTUE
YODA
ZOOM
Source: AgroNews

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