OK, you've implied or linked to some significantly different claims here:
1. That there is no Zika outbreak / outbreak of Zika-like symptoms (this seems irrefutably wrong and as far as I know even the typical conspiracy theorist sites aren't claiming this much).
2. That the symptoms of Zika are in fact caused by the organo-phosphate pesticide Pyriproxyfen (Zika has been a recognized viral illness just like others e.g. Dengue for at least 50 years, predating the widepread use of organo-phosphates in Brazil, so this also is very, very unlikely).
3. That the microencephaly in babies borne to mothers with Zika, that is being attributed to the Zika virus, is in fact caused by Pyriproxyfen (for epidemiological reasons [1], this seems very unlikely but it cannot be ruled out at this point).
By the way, your second source didn't seem terribly bad, and assumed an appropriate amount of skepticism toward the claims in question. Your first source, written by an "political analyst" currently pursuing a global affairs degree, and with no apparent scientific credentials, wasn't as convincing.
Are any of the academic virologists you're referring to on public record with their skepticism about the Zika outbreak?
1. In the three cities reporting the most cases — Recife, Jaboatao and Paulista — pyriproxyfen is not in use, according to: http://www.npr.org/sections/goatsandsoda/2016/02/18/46713891....