Dawn dish soap, but only if it's used as a surfactant. Dilute it down to nothing. Drop or two per gallon. Have used it with approximately a half gallon to a gallon with a bag of chew. (Think bag of loose leaf tobacco like Red Man.) The tiny amount of dish soap is to break the surface tension of the water. (Dawn's brand is fairly forgiving, heard up to a teaspoon/tablespoon per gallon, but never went overboard with it.) Use it as a spray to discourage bugs and kill harmful fungi on fruits/veggies. Reason never went overboard so as not to kill the bios in the soil. Need things like worms and so on. Bucket full of water, add soap and agitate, dump bag of chew in, agitate. Let soak overnight or longer. Spray area as needed. Respray after rain. Approximately once a week, cuz dew will eventually wash leaves off. Don't go crazy with it. It'll kill the bios in the soil. If you soak the soil, idk what'll happen. Never did that. Also, it won't keep birds and other varmint away like deer/moles
that makes me think of a different question.
our lime tree gets black leaves. from a mold someone told me. i clipped off most of it but could i cover it with dawn diluted with water to fight the mold? she said i could use neem oil but i cant get my hands on anything like that right now
Never dealt with that. Not sure soap would do the job. I'd think using white vinegar would kill the mold, but idk what acidity level would kill the leaves. Vinegar, hydrogen peroxide and rubbing alcohol kill mold. Idk if citric acid might work. And there's different levels of alcohols, too. That's a tough one. I'd research and if I couldn't find any info: I'd get 3 spray bottles and test 3 areas. Have seen entire crops lost simply due to inaction. As far as plants go, you can always replant/replace. Not sure? Why not experiment! Least you tried if it goes poorly. Good luck with your lime tree.
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