There are many many different leafhoppers in many different genera and species with many different targets they can infect if they're ones that can transmit disease, but only the beet Leafhopper transmits Curly Top Virus and the disease is found almost exclusively in our arid SW.

So I don't think you have to worry about Curly Top virus in our area.

I didn't Google aster yellows to see which leafhopper is responsible for that disease.

Below I've linked to a Google Images page of Beet Leafhoppers.

Carolyn

Here is a link that might be useful: Beet Leafhopper

Hi, Thanks carolyn for your help. six spotted leaf hoppers cause the aster yellows and I'm pretty sure I have potato leaf hoppers. They have caused a lot of damage to my coneflower to the point that the plant may die even though I have been making daily rounds with a bucket of water and drowning as may of them as I can.

the only reason my Sweet 100 tomato has only a little damge is becuse I netted it owever the plant will out grow the net in a few days and I also have 7 more tomatoes that need to be planted and only one net.

I know I should use an insecticide however given that it is important to me that is organic I havn't found anything that will control leafhoppers residualy. in other words neem oil and rubbing alcohol work well on contact but the nasty bugs are so fast they fly away before they die. I need something that will kill them when they land o the plant but I havn't found anything organic or sythetic that will do that.

So does anyone have a suggestion? I would like to be able to grow my tomatoes and beans this summer and I can't net them for more then another week or so so what do I do? will alcohol or neem oil sprayed near and on effected plants work?

thanks for bearing with me.

DLF