can you identify this pest?
Hi I have grown dahlia's for a couple of years (just a couple of plants) this year I went all out and planted 25. I am having more problems this year than ever before. I have tall plants with no buds, leafs that aren't really green, bugs, mildew and holes in my leaves...not sure what causes what so I am going to post a few photos to see what suggestions I get. The photo below shows some holes in a lot of my plants that are up higher on the plant. I have been good about using sluggo...
In this photo I obviously have some sort of small black bug...it is only on this one plant-Thrip????
Not sure what is happening with the spots on the leaves....
and finally this plant seems to be suffering. I bought this from a nursery already blooming. It is just getting it from all sides... not sure what has gotten to it..it was full and lush when I planted it 6 weeks ago and was a good bloomer.
Any help would be great!