Sunflower Plants
Q.

Sunflower heads are not flowering

Zone Winnipeg Manitoba, Zone 3 | rruntz added on August 23, 2016 | Answered

I am trying to find out why my sunflower heads are not flowering. Out of a dozen plants that came up, only one has actually flowered. Is there somewhere I can find pictures of what various pests do to sunflowers? I have tried to upload two pictures of the heads. Any hints would be greatly appreciated. Thank you in advance.

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on August 23, 2016

This is most likely due to the Sunflower Midge insect.
I would recommend you contact your County Extension Office to inquire on the best treatment in your region.
Here are some links for you with more information.

http://www.uvm.edu/extension/cropsoil/wp-
content/uploads/SunflowerInsects.pdf
https://www.gardeningknowhow.com/plant-problems/pests/insects/blossom-midge-in-plants.htm
https://www.gardeningknowhow.com/extension-search/

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