Table 2 - Iron Chlorosis

    Table 2 - Iron Chlorosis

    Advantages and disadvantages of iron chlorosis control methods.


     
    Method
    Advantages
    Disadvantages
     
    Soil application: Iron sulfate-elemental sulfur
    • Lasts up to several years
    • Relatively inexpensive
    • No injury to plant
    • Simple procedure
    • Slow response
    • Results sometimes variable
    • Too expensive for large areas of low-value crops
    • Can be labor-intensive
    Soil application: Iron chelates
    • Simple procedure
    • Generally no injury to plant
    • Relatively quick response
    • May last less than one season
    • Expensive
    • Results sometimes variable
    Foliar application: Chelates or iron sulfate
    • Quick response
    • Fairly simple, easy procedure (except for large trees)
    • Only practical method for field crops
    • Expensive on trees
    • Can cause temporary leaf burning
    • Often lasts less than one season
    Trunk injection or implantation
    • Lasts up to several years
    • Moderate expense
    • Injures tree's trunk
    • Can't be used on shrubs or non-woody plants
    • Results sometimes variable
    • Can cause temporary leaf burning
    • Somewhat complicated procedure

    Updated 7/15/02