THE BATTLE AGAINST PESTS

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Across
  1. 3. Pesticides called ________ were developed to kill insect pests. (Ch 2)
  2. 5. Protecting crops from ________ means farmers can product more food. (Ch 4)
  3. 6. A chemical that was discovered by scientists during World War II. (Ch 2)
  4. 7. As a result of the potato blight, there was ________, which caused around 1 million people to die of starvation. (Ch 1)
Down
  1. 1. Author Rachel Carson wrote about how DDT stays in the ________ after being used only one time. (Ch 3)
  2. 2. Organic farmers use plants that attract beneficial ________ to their farms. (Ch 4)
  3. 4. Young plants _______ resistance from diseases from the parent plants. (Ch 4)
  4. 5. Some people used ________ to keep their plants free from pests. (Ch 1)