Hello, i came back from school this week and discovered that my 1 year and 2 year old pines are suffering from some sort of disorder. When i last saw them 3 weeks ago, they had swelling buds, and nice needles. Now, they have browning needles, and many have died. I have had my brother watering them for me, but he is only good for that, so i didnt expect disease reports or anything. Any guesses to my ailment, and the solution? It appears the needles begin to brown at the tips.