I don't want to use chemical pesticide but how can I ward off bugs organically especially aphids, which damage my vegetables every year?
I studied aphids don't like reflected sunlight so I've tried aluminum tape to repel them. I found more effective thing on the Internet than the tape, I believe. I bought a roll of silver-colored mulch sheet, which is 1 meter-wide and 100-meter-long.
The sheet is effective not only for repel bugs but for cooling down soil by reflecting sunlight. Today I covered my gardening ridges with the sheet.
I'll plant tomatoes, eggplants and cucumbers there next week. Aphids love those summer vegetables so I strongly hope the sheet will work effectively.