overfertilizes

/ˌoʊvərˈfɜːrtəlaɪzɪz/
verb
  1. Applies too much fertilizer to something, causing harm.
    • The company overfertilizes the fields, leading to algae blooms in the lake.
    • If she overfertilizes the houseplants, their leaves will turn brown.
    • He often overfertilizes his garden, which kills the tomatoes.