When should I apply grub control to my lawn, considering the various factors that influence the life cycle of these pests? Is there a specific timeframe during which treatments are most effective? Furthermore, could environmental conditions such as temperature and humidity play a significant role in determining the optimal application period? Additionally, what about regional differences—do the best months to treat grub infestations vary depending on geographical location? Is it essential to understand when grubs are most vulnerable, perhaps during their juvenile stage, to ensure maximum efficacy of the treatment? Moreover, how can one identify the signs of a grub problem before it escalates into a more significant issue? What preventive measures can be taken ahead of time to mitigate the risks associated with these troublesome lawn intruders? Ultimately, what are the expert recommendations regarding the intersections of timing, application methods, and ongoing lawn care practices to achieve a healthy, vibrant lawn?