Hey guys! I have a client whose Red Oak is dropping its leaves. The yard looks as if a storm or very strong wind came through and just blew some of them off. All the leaves have fallen off at the abscission point and there are no other signs of leaf stress or decay. ( see pics ) There are 5 weeping spots on the trunk but no holes or signs of an exterior wound. None of the other trees on the street have been effected. Through a long conversation I found out that he moved in 2 months earlier so I don't have any history of the tree before then ( but it obviously had been over pruned at one point ). The only variable that was unique to his yard was the application of a " natural " pesticide. He called to company that applied it and they said it was: Intice perimeter bait Demand CS Applied to potato plants a the root flare. I found the chemical data sheet and turns out its pretty much all greek to me I've included the pics I took for reference and any thoughts would be very much appreciated.