fungicide and fertilizer timing
Asked May 20, 2019, 7:16 AM EDT
How soon can you apply a fungicide after a grubex application. 1.5 acres. Also
with days and days of excessive rain, fertilizing recommendation would be appreciated.
Lehigh County Pennsylvania
Is this a home lawn? With a few exceptions (identification of a persistent disease), I do not recommend treating a home lawn with a fungicide. Having said that, you could use one any time after an insecticide treatment. That won't make a difference.
As far as applying fertilizer, it depends on the turfgrass species that you have. This link as a lot of information, but scroll towards the very bottom and there is a chart that lists the turf species and the pounds of nitrogen per 1000 square feet that should be applied annually. A typical range is 2-4 pounds. If you leave the grass clippings on the yard, that will be 1 pound over the course of the year.