sunflower moth larvae not just on coneflowers
Take a look at your coneflower cones next time you are out in the garden. If you see cones which have a blackened centre as one of mine you can see below, (the front and centre 'powwow' white flower)
then very likely your echinacea have the "sunflower larvae" burrowed in the flower. To verify simply break open the flower and look inside. You may well see a small green worm (larva).
And now I notice this year this same pest is destroying flowers of similar plants., For example I see my stands of "Tuscan Sun" Heliopsis has the problem also:
Here is a link that might be useful: sunflower larvae in your flowers
This post was edited by rouge21 on Wed, Jul 31, 13 at 17:07