I read your extensive article on grub treatment.
My wife’s flower garden I think(know) has an out of control problem with grubs because there are piles of dirt from moles all over the garden and this fall I noticed they are spreading onto the lawn.
What should I order and what quantity and when should I start applying in the spring to bring it under control?
As explained in our GRUB CONTROL ARTICLE, grubs are very active during the winter. At this time they’re usually high up in the soil, near the surface, and more vulnerable to treatments. For this reason it’s a good idea to at least treat with the CYFLUTHRIN or MERIT granules right away. If where you reside is fairly mild in the winter, like in a southern state such as Georgia, Florida or Texas, applying a liquid over the top like PERMETHRIN should also be done. A treatment now and then again next spring in February-March will go a long way in getting rid of the problem by next summer.
If the garden is organic or used for growing vegetables, go with the products listed for organic gardening. The following post lists the alternative product options. Remember, the organic options don’t last as long so you should treat more frequently if you go with them over the items listed above.