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Terry from St. Louis Missouri writes

How much Merit 75 WP should I use per gallons of water as a drench on mandevilla?

Answer:

Per the product label: You would mix Merit 75 WP  at the rate 2 oz per 30 cumulative feet of shrub height.  Soil Drench: Uniformly apply the dosage in no less than 10 gallons of water per 1000 square feet as a drench around the base of the tree, directed to the root zone. Remove plastic or any other barrier that will stop solution from reaching the root zone.

Answer last updated on: 06/14/2019

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