Poison ivy crossword puzzle

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Across
  1. 3. poison ivy’s weakness
  2. 4. the second phase of poison ivy
  3. 5. the poison that poison ivy releases
  4. 6. the first phase of poison ivy
Down
  1. 1. the last phase of poison ivy
  2. 2. something that doesn’t get affected by poison ivy
  3. 7. poison ivy is _ contagious