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Greg from Frederick, Maryland writes

When is the earliest date a soil drench of Merit 75 WP for aphids on Crape Myrtle be applied in the Washington D.C. area?

Answer:

Please contact your local cooperative extension office to determine the correct timing of the application as this will vary greatly from region to region. Systemic products such as Merit 75 WP are best applied before pests are a problem because it takes time to translocate throughout the tree.

Answer last updated on: 03/27/2019

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Merit 75 WP

Merit 75 WP

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