Yeah, I just don't know either. They said in 'slight' concentrations. And the zep is concentrated. So maybe it is actually 50 parts water to 1 part zep for one and perhaps 25 water to one part zep for another concentrate. 50/50 seems like a strong mix since the zep is quite concentrated to begin with. Oh shoot, I don't know, but I'm going to give it a try if/when the flies show up again. I'll start with a very diluted mix and take it from there. For now the "flies" are gone...again. I used some Safer Soap first and then washed all the leaves and stems with a weak solution of dish det. and water...then brought the plant inside. I'm keeping my fingers crossed that the flies didn't come in with the EE. It looked very clean when I brought it in a couple days ago. So far, so good. No signs of the flies yet. Over the Summer I had used the insecticide and the Safer Soap but the darn flies would always return in a few days. Ah well, time will tell. :) Thanks for your responses, John. Linda

White flies LOVE the color yellow which is why whitefly traps are that color and are coated with ultra sticky stuff. When the whiteflies land on the traps they get stuck. Voila! End of whiteflies. Seriously, this prevents the adults from laying eggs. Its the nymphs that do the damage with their piercing mouthparts. The adults don't harm plants, but they do produce the young that do. Break the cycle and your whitefly problem will vanish. You can make your own traps by using a yellow plastic plate stapled onto a stake. An old paint stir stick works well. Coat the plate with something sticky like petroleum jelly or Tanglefoot, a sticky pigeon control product you can get at the home improvement store. Place the plate next to plants that whiteflies love like hibiscus and lantana. Good luck. Here is a link that might be useful: whitefly management from UC Davis

This cannot be a new thing. I too have a one year old vine, no fruit, lots of vine and millions of those very, very small flying insects. Shake the plant and these things swam out like some kind of plague -- but try to find them on the underside of the leaves -- they are not impossible to see but if they do not move you can miss them, unless they fly, then they are truly evident. Also, the leaves now have brown blotches all over them and some are skeletal -- not sure these flies or whatever, are the cause but there are so many that they cannot be beneficial. But, no one seems to have and answer, like this is something unusual. Strange, no one seems to have a solid answer?

They weren't there at first, now there are so many of them on the Stargazer and Aubade lilies, it detracts from their beauty, couldn't even take a photograph now without several being in it, didn't notice any last year. They don't seem to be doing any damage, must be going after the sugar. The blooms are so massed, large and beautiful this year on the SG's, you hardly see any foliage right now. They are also a nuisance on my new Becky shastas, are not bothering anything else that I've noticed. And I was relieved when they were just flies before there were so many because they weren't JB's. I am having enough trouble with various insects mainly on my roses and certainly don't want to have to find a relatively safe spray for flies, if there even is one safe for plants, think it best to just put up with them. I wonder what is causing it. I did buy a bag of cow manure last fall and worked it and some peat and city compost into the bed where the daisies are to amend the soil. That might be it, and they started on the shastas. I don't know what I have outside where they could be breeding except decaying leaf mulch in 2 bins I haven't quite used up yet and an uncovered garbage can for plant refuse I'm not set up to compost neatly yet. I want those open so water will get in there, it's cracked in the bottom and excess drains out. One year my dad let the tenants have a cement platform built attached to the barn for cows. It was too close to the house and driveway, smelled horrid, and the same kind of flies were awful, was there this time of year then, no cows for a long time. Luckily I only got that one bag of manure and won't be using any more of it in my garden.