Scale: signs & treatments

Signs

  • Hard, round black, brown, or gray bumps
  • Weak, wilted, or yellowing plants

Treatments

  • Spray with diluted 50% isopropyl alcohol (rubbing alcohol) daily until insects are gone
  • Gently scrape off scale with a card
  • Remove affected leaves and stems
  • Spray with soapy water solution (three drops of soap in two cups of water)
  • Spray with diluted neem oil (one teaspoon in a quart of water) and protect from light until oil washes off