I have a compost pile consisting of two wire mesh bins each about 4 feet (1.2m) on all sides. I feed it yard waste and plant scraps from the kitchen. I used to put black walnut leaves and walnuts in it too. (Now I compost the leaves separately and leave the walnuts to the squirrels.) They are now within the drip line of a black walnut. I'm wondering if juglone is soaking into the compost and causing deleterious effects to the plants in the garden where it is applied. Some plants to which I have applied compost have not exactly thrived.
Does anyone here have any insight into this?