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in Problem solving
I planted 4 Pyracantha (red) plants in early spring. Three have bloomed, grown well and have berries forming. One is weaker with no berries forming and not much growth. They are about 4 feet apart and soil conditions are the same for all, a clay based soil with compost dug in. The weak plant has some yellowing leaves. Any ideas?
It is not happy-if you are gardening on clay that means you have poor drainage-yellowing leaves is often a sign of over-watering-I would be inclined to lift that one as it has only been in a few months and inspect the root ball-is it sodden?-are the roots confined?
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My Pyracantha is not very healthy and has some sort of blight. There is a film that covers the leaves and causes them to close up and then drop off. You can scratch the film off with your nail and underneath there seems to be lots of little black specks, which I presume are some sort of bug eggs. What is the best solution for this problem?
Sounds like "leaf spot" due to Entomosporium, a fungal infection caused by this wet weather, or it could be leaf miner. A bit more detail is required, please. (colour of spot/is the fruit affected/are the spots on both sides of the leaf? A photo would be helpful.
Pic of leaf miner below.