If the central cones of your coneflowers appear black or muddy, sunflower moths (Homoeosoma electellum) might be the likely culprits. These silvery insects inject their eggs into the new blooms ...
The sunflower head moth has been the No. 1 insect pest in sunflowers for the past ... but infestations have been common, he said. In most cases, the head moth damage has not been severe enough ...
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