Here in Seattle, Washington is also known as Pacific Northwest (PNW). Not only we have the select the ideal fig variety for our cool short summer weather, but we also have to pick unripe figs in the Fall to prevent fungus disease. This video is in addition to my Disease and Dieback Pruning Article. Since fruiting age fig trees will have another additional factor of rotting fruits can cause fungus disease. Most often you will see if we let it progress by April the areas where the unripe fig fruits were rotting there will be an orange color I like to simply call it to canker there is actually a more technical name.
It is also important to mention, any fallen fruit left to rot attracts bugs, fungus, and bacteria that break down organic waste and return it back to the soil. It’s best to rake away dropped fruit, pruned branches, and leaves.
Since we are talking about Negronne Fig, you can see the Breba Crop is are the very tip already showing on February 2, and The unripe Main Crop that didn’t all ripen in time is towards the bottom. If you had an early ripening Main Crop variety that ripens before September you wouldn’t have as much of an issue of many unripe fruits still hanging on the tree.
For people like me, who grow figs in pots, our potted fig trees aren’t as productive and usually size manageable. We can handpick off any unripe fruit in Fall. For in-ground, figs like this Negronne Fig Tree, this variety is very productive and highly recommended for PNW. I think it will be too time-consuming to handpick any unripe figs. Often, winter disease pruning will go hand in hand. We have to prune for shape, any disease affected branches can be taken off. The tree still has plenty of branches. Some will choose preventative care in Early Fall and some will choose Treatment Care in Early Spring. Which method do you prefer?
Here is another video I made a while ago, April 11, 2019, you can see the extend of fungus disease. The advantage of preventive care is minimal disease spreading and light pruning. Compared to Treatment Care, could require more dramatic heavy pruning a couple of inches below the infected area to completely remove it. If left untreated about results in weaken and unhealthy tree leading to the death of the tree. Heavy pruning is a sacrifice to chose a healthier tree over its beauty.