This spring in Oregon was even colder and wetter than usual. Still, my plants were finally growing and looking healthy, but getting eaten up. I found tiny bugs on my three tomatoes. I put Sevin on two of them and insecticide soap on the other one. The one with soap sprayed on it now has all the leaves turning yellow and shriveling up. I also sprayed in on my beans, which looked good, but had a few holes in the leaves, and now they are turning brown also. Same with my broccoli; its leaves are starting to turn brown also. Have I killed them? I'm at my wit's end! What should I do?
BTW, I don't see any change in the tomatoes I put Sevin on.
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Concentration matters too. If you are making soap solution at home (you can buy products like Safer's insecticidal soap), a couple teaspoonfuls of soap in a quart of water is all you need. Adding a little vegetable oil helps the solution adhere to the plants better. But don't over do anything!
And yes, the US has an amazing tolerance for poisons that are banned elsewhere. It's that laissez faire capitalism thing!
And yes, the US has an amazing tolerance for poisons that are banned elsewhere. It's that laissez faire capitalism thing!
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I wash them off if I feel like it might be warranted-- sun, wind, solution seems too sudsy or intentionally stronger on persistent pests, spray used or overprayed/drifted on near harvest produce (I hate soapy lettuce ), etc.
I'm not saying it's absolutely necessary, but it's an optional extra step to keep in mind. FWIW, I haven't had a burn problem since I started doing this.
I'm not saying it's absolutely necessary, but it's an optional extra step to keep in mind. FWIW, I haven't had a burn problem since I started doing this.