Plant Problem need help

Carnage689

Active Member
Hey Guys, I have a problem with a couple of plants and I was wondering if anyone knew what the problem is. I am growing outdoord and everything has been running smoothly till now. My plants range between 1 foot and 3 feet. and 3 out of the 6 of them have a blackish dark colored residue on the top of the plants right where the buds are going to form. Does anyone know what this could be. Thanks
-Rob
 
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