Marengo pre-emergent herbicide, from OHP, is now labeled for use on greenhouse floors.

Marengo is a selective pre-emergent alkylazine herbicide containing the new active ingredient, indaziflam,which belongs to a new MOA (Mode of Action) group 29, a class of herbicides that inhibit cellulose biosynthesis. Marengo is very water insoluble and does not volatilize.
The new use pattern allows growers to apply under benches, on ground cloth, on gravel areas, and on dirt floors, in greenhouse structures.
Marengo is now registered for use in production ornamentals (in outdoor nurseries, shadehouses, and hoophouses),conifers, Christmas trees, greenhouse floors (under benches), ornamental production sites and hardscapes.
For more information visit OHP's website.
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