needle cast

I have this JRP that has been doing well up until about a few weeks ago and the yellowing has gotten worse. It seems mostly on newer needles, but there’s a few older needles here and there that are browning and I’m trying to determine if it’s getting watered too much or if it’s needle cast or...

I'm worried about my Japanese Black Pines. They are showing partially browned out needles. The needles are half brown, half green, and it would appear eventually turning all brown. I'm worried. I don't know what soil they were in when I bought them but it was well draining. Early this Spring I...

Hey all, Its been a while since ive posted. Been busy with work and buying a new home. We have been having an ungodly spring here in chicago. Its more like winter 2 Anyway, i brought my jbp outside about two weeks ago, and the needles seemed a bit pale, but nothing too bad considering...

I got this mugo pine in early summer and haven’t really touched it except for raising its level in the pot. I have noticed that some of it’s needles turn brown at the ends. I am guessing it is a fungus so I will start spraying with fungicides in spring along with my Japanese Black Pine, but does...

I bought an “Ondae” cultivar Japanese Black Pine in February and repotted it in March. It seemed to be doing well, but over the summer, I have found what seems to be needle cast on its needles. Tips of some needles are turning brown at the tips and towards the ends, some needles are turning...

I know there are some expert black pine guys around here that may be able to shed some light on this problem. Several of my pines are showing signs of needle cast. Some more severe than others. How do you identify the cause\ treatment. I have already sprayed copper fungicide and lime sulfur...

Greetings all (and specifically Vance). I am a novice and welcome your comments/advice. The following is an update on the Mugo I purchased approx. 2 years ago from a nursery in Ottawa, CA. Based on advice from Vance and others here (thanks), I cut off ~1/4 of the almost completely sand base and...