| Hello, It is natural for the older fronds to dry up and be 'spent' of their nutrients as they are then replaced by new growth. When they are brown, just trim them off of Queen palms (which are not self-cleaning like some palms). However, this could be due to hot dry winds and the accumulation of summer. Nothing is good for queens palms here. We are too hot and dry. Our soil is alkaline, which causes them to suffer from nutrient deficiencies. Any good palm food (granular or Lutz spikes) will resolve the latter problem. I give my palms small doses of palm food monthly from March-October. People just don't water them enough in spring and summer here. I would mulch them (don't let touch the trunk)to keep the soil cooler and moist in spring and summer. Now that our 'fall' is here and 'winter' is approaching, the stressful period for them is pretty much over. Cold winds can dessicate the fronds too (keep them watered in winter too, but with less frequency of course). In most places in the valley, cold is simply not an issue for them in terms of frost hazard. Check your emitters to see if they are clogged and maybe add a couple more around the palms. An emitter 18" away should be fine. Helpful link: http://www.pacificpalms.com/QueenHth01.htm Good luck. | 
