Hi Friends, I found this on some flowers this morning.
Is a giant more than 13 feet tall plant in a greenhouse in soil.
Could anyone suggest what to do? As you can see flower are not far from harvest.
Also the 3rd picture shows a Spider Mite infestation, see the tiny webbing across the top. I think there are signs in the other pictures too, but not as clear. Insect damage is what leads to bud rot in a lot of instances
Those caterpillar attacks look just like bud rot, because the invaded tissue rots. That webbing might actually be fungus.
When I grew outdoors in the Carolinas, caterpillars were my biggest problem (aside from, oh, I don't know… fear of arrest and prosecution). One year I lost about half the crop. I packed it in after that.
You should find a hole or two, or the actual worm, in the damaged buds.