amines versus esters in spring

Discussion in 'Pesticide & Herbicide Application' started by TOTALLAWN OF KY, Mar 12, 2003.


    TOTALLAWN OF KY LawnSite Member
    Posts: 139

    :confused: what works better in the spring esters or amines when temps are cool . like for henbit and chickweeds and etc...
  2. EJK2352

    EJK2352 LawnSite Bronze Member
    Posts: 1,150

  3. kickin sum grass

    kickin sum grass LawnSite Senior Member
    Posts: 628

    use esters in cool weather. Amines don't work well in cool weather. When night temps are below 40-50 the amines will stop moving through the plants and do little good. Esters will also stop moving at night but will start moving again the next day when it warms a little.
    Use caution - esters should not be used above 80 degrees of day time temp. as they may cause a vapor clouds and move to shrubs etc. causing harm. At these day temps the night temps are ok for amines.
    We keep both esters and amines on hand. We start sthe year off with esters and then switch to amines later in the springs. Then in the fall we start with amines and if the temp gets cool then we will switch back to esters. It is all temp related.

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