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Karen writes,

What is the area that one envelope of Merit 75 WSP will cover?


The coverage area of 1 envelope of Merit 75 WSP will depend entirely on the type of pest you are treating and the area that is being treated.  Here are some general guidelines:

There are 4 x 1.6 oz water soluble packets in each envelope.

For Turf grass-:  1.6 oz (1 packet) per 8,250 sq ft to 11,000 sq ft.

For Foliar applications of trees, shrubs: 1.6 oz (1 packet) per 300 gal water

For Systemic applications of trees:  1.6 (1 packet) per 24-48 cumulative inches trunk diameter

For Systemic applications of shrubs: 1.6 (1 packet) per 24-48 cumulative feet shrub height

Merit WSP label:


Easy to understand mixing instructions at bottom of page:



Answer last updated on: 02/01/2010

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