Horse Nettle- Holes in leaves

C.J. · May 22, 2018

Plowed up a 3 acre field and sprayed Prowl H2O and then incorporated it into the soil. field is currently planted in sunflowers as of one week ago. Horse Nettle has been a problem in this field so we were spot spraying it and noticed most of them looked like the below pictures. Is this from the prowl? or could this be from some type of insect? Trying to avoid having an insect problem on our sunflowers.

antharper · May 22, 2018

I’m gonna say it’s from the prowl , but it looks healthy otherwise , if it was an insect with that much damage it should be easy to find them !

doomtrpr_z71 · May 22, 2018

Prowl damage doesn't look like that, dinitroanilines inhibt root and shoot growth, it wouldn't put holes in the leaves. Prowl won't do anything to weeds that are emerged.

Dbender · May 22, 2018

Just a guess but I'd say flea beetle. Maybe they like the nettle better than the sunflower. Might not want to spray?

C.J. · May 23, 2018

Dbender said:
Just a guess but I'd say flea beetle. Maybe they like the nettle better than the sunflower. Might not want to spray?

the sunflowers are just now starting to sprout so they have not had a chance to touch them yet -

Horse Nettle- Holes in leaves

C.J.

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