Jim from Tucson, Az writes,
what are the watering instructions/precautions for desert saguaros, agaves etc??
Seems to me that it should be a year round program in AZ. Neighbors do not generally treat their entire yards...only around the prime target plants for the grubs.
Grubs are not normally treated for year round as they go through certain life cycles where they are emerging and then burrowing in the soil deep below the surface and then back around again. The products for grub control are designed to be absorbed into the plant material that the grubs are feeding on so that when they eat the roots they ingest it and die from it. However, grubs do not feed all the time so if you are putting down an application when they are going further into the soil or getting ready to, your application will be wasted as they are no longer feeding for the year at that point. Also, merit should not harm or affect watering of desert sauaros or agave plants.
Answer last updated on: 02/13/2015