Agree with gumby - the most common cause is too much water. Can't control the rain you may get but you can cut back on watering and make sure the plants are in well draining soil. Without more details or pic of the plants in question, that would be the best guess. Dave

Thank all for the helpful advise. Martin, Thank you for confirming that my fig tree yellow leaves issue is not heat related, which allow me to narrow down to possible individual tree caring problem. It looks like that you are living in the same area as I do, I remember you have helped me in the past thread on how to winterize the trees. What type of mulch works the best according to your own experience? Frank, I will add some lime into the soil next spring, Thanks for remind me of this. In zone5, fig is not popular grown in ground. There are same people grow fig in the pots but still is not very popular plant except few people like members in this forum who really like to grow figs. John, Vinnie, Thanks for confirming the growing enviroment of the fig trees. You both are right. Hardy Chicago originally came from sicily Italy where is an island, growing climate should be very humid. It naturally should be able to take moist air without developing disease. I am looking into the overwater issue and on the caution side, spayed the fungicide which I try to use as seldom as possible. Currently, it appears the problem has stopped developing after few yellowed leave fell off. foolishpleasure, Thank you for the Spectracide info. I do have a small vegetable garden and occasionally have blosom rot on those large heirloom tomatoes.

Too much water can cause the same signs and symptoms that too little water can cause. If you don't see wee bugs on the leaves that means the problem is not Aphids, Mealybugs, Scale, or other similar insects. I would check the soil first.

Cory, I don't know how you did it! All by yourself and all your strength. you amaze me and I too have all my orchids still in my greenhouse although I cheat once in a while. I will take all my exposed root orchids growing on bark and spaghnum and stick them in this rain. It feels so good to be able to have much more room for mine! I can't wait to stick them all out in the rain. Wouldn't it be nice to be able to just lift the roofs off our greenhouses?? All the rain they can get without ever having to remove them. I'm glad you are ok these days. We need our health to be able to do as much as we do. Good nite long time friend. Mike