I dug Sweet Potato Today. They were severely Damaged on Surface by Insects or Worms.

Sweet Potato that I harvested from my Garden Today

These sweet potato are vulnerable to insect damage because they are improved to have more sweetness. I am wondering how the professional producers, I mean farmers, take a countermeasure against this kind of damage. Do they mix pesticides into the ground? I have never used pesticides to vegetables in my garden, although I do that for some fruit trees.



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