Pests and Diseases forum→Translucent holes on leaves

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Jun 11, 2020 2:04 PM CST
Hi all!

I recently started seeing translucent holes on pretty much all the plants in my garden. The only ones that appear unaffected so far are my sweet peas and tomatoes. The zinnias and peppers are the worst. Crying

At first I thought maybe it was due to too much fertilizer, but when I started to see how symmetrical the holes are, I began to suspect something more. Thinking

I can't seem to locate any bugs or larva on the plants. There is also really no dark spots etc suggestive of fungus/bacteria. I do Iive in a Japanese beetle endemic area, but I don't see any on the plants. What do you think is causing this?

I tried pyrethrin spray and it hasn't gotten worse, but I am leaning towards treating with a systemic. Any suggestions?

Thanks so much!

Thumb of 2020-06-11/guccisimo85/b99e5a

Name: Lee-Roy
Bilzen, Belgium (Zone 8a)
Irises Lilies Hostas Ferns Composter Region: Belgium
Lover of wildlife (Black bear badge) Region: Europe
Jun 11, 2020 2:55 PM CST
If you don't know what's causing this, how can you treat with a systemic? For what? EVERYTHING?

No, no. First you identify the cause and thén you treat properly.

Japanese beetle (according to the wiki: ) consume around 300 different species of plants including genera of Solanum (of which peppers are a member) and Zinnia. They apparently also only eat the interveinal tissue.

So far though, I'm afraid there's just too little to go by to give a definite answer.

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