Dear all,
The literature showed there is a Phytotoxicity of the propanil to Broad leave crop. So, to conquer this problem kindly share your valuable suggestions.
Though propanil is effective against both grass (monocotyledon) and many broadleaf (dicotyledons) plants, it'd been a popular and widely adopted herbicide in rice (mostly lowland). Because, rice crop contains the enzyme aryl acylamidase which hydrolyzes propanil. But, phytotoxicity of propanil in rice had been reported when applied with organophosphate or carbamate insectices, which inhibit the aryl acylamidase enzyme. Thus, it’s recommended to avoid use of organophosphate or carbamate insectices 14 days before and after application of propanil.
Propanil phytotoxicity in rice had also been claimed due to dehalogenation of the molecule by fungi and eventually the aromatic compound being toxic to rice plants. Accordingly, fungicides (e.g. iprodione) could be used as safener for propanil to overcome possible phytotoxicity.
On the other hand, enhanced efficacy of propanil through application as tank mixture with quinclorac or triclopyr or Butachlor had been reported for lowland rice. Further, because of acute fish toxicity of propanil its application is restricted in flooded field with potential contamination of water bodies.
Rice Co has a WG formulation that does not presents those problems
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