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Chile OKs Valent’s ProTone SL

Chile has approved Sumitomo Chemical US subsidiary Valent BioSciences’ (Libertyville, Illinois) plant growth regulator, ProTone SL (S-abscisic acid), for use on grapevines. The soluble liquid formulation product represents the first global registration of the single isomer version of the established active ingredient, the company says. The product has been tested in Australia, South Africa and the US, where approvals are expected “in the near future”. ProTone SL has stress management applications and will be marketed this season for use on red table grapes in Chile.



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