UACES Facebook Hollyhock

Hollyhock

May 2012

Question I am growing my first hollyhock flower bed and my plants are afflicted with a light green serpentine leaf ailment. My next door neighbor (one-quarter mile away) has the same problem but with brown crusties on the underside of the leaf. Can you give us a name or a treatment?

Answer The problem is called a leaf miner. Think about how small the insect has to be to get between the layers of the leaves and make a tunnel. While it isn’t the most attractive part of the plant, it tends to be more of a cosmetic problem, since the plant continues to grow and bloom. If only a few leaves are affected, simply remove them and destroy them—don’t throw them on the ground, the larvae of the insect may still be inside. If the damage gets worse, you can use insecticides, but once the insects are firmly established, they are more difficult to control, and control is often unnecessary. Do a good job of cleanup in the fall to start next year clean.


All links to external sites open in a new window. You may return to the University of Arkansas Division of Agriculture web site by closing this window when you are finished. We do not guarantee the accuracy of the information, or the accessibility for people with disabilities listed at any external site.

Links to commercial sites are provided for information and convenience only. Inclusion of sites does not imply University of Arkansas Division of Agriculture's approval of their product or service to the exclusion of others that may be similar, nor does it guarantee or warrant the standard of the products or service offered.

The mention of any commercial product in this web site does not imply its endorsement by the University of Arkansas Division of Agriculture over other products not named, nor does the omission imply that they are not satisfactory.