i live in butler co. pa. my english walnut tree is dropping it's leaves already, burning bushes are starting to chg. and i noticed my garden is where it s/b in late aud/sept time period. is this due to the amt of rain we have had or is something else going on? thank you
From your description this sounds like it may be a type of stress such as drought, too much moisture, and a possible fungal issue on the walnut. We cannot say for sure. You have the option of submitting digital photos of the plants. Send photos of the whole plant, around the base, and affected foliage.
In general, English walnut tends to drop their leaves due to anthracnose, a fungal disease. This can be prevalent during cool wet springs followed by a few days of warm weather. You may notice browning along the leaf veins. Anthracnose can affect oak, sycamore, ash, maples, etc. No control is necessary. Rake all fallen leaves to prevent overwintering spores. http://extension.umd.edu/learn/shade-tree-anthracnose
As you have observed, this does not kill the tree. However, it can be defoliated by mid summer. Fungicides are not practical for large trees. mh