Pyrethrum for Annuals: Correct Use & Monitoring

Question: Holes in potato vine, New Guinea impatiens, ageratum, alyssum in pots. Sprayed chrysanthemum-based spray. Right choice? What else?

Answer: Yes—Pyrethrum Is Correct

• Your spray = pyrethrum (chrysanthemum-derived)
• 100% organic, non-toxic to humans/pets
• Highly effective against insects

Why I Prefer Insecticidal Soap First

Pyrethrum is non-selective—kills beneficials too. Use soap first; escalate to pyrethrum if needed.

Current Action Plan

1. Monitor daily
2. If initial spray worked → plants recover
3. If damage continues → reapply per label dilution rates
4. Cover leaf undersides thoroughly

Long-Term

Encourage beneficials (lady beetles, lacewings) by avoiding broad sprays when possible.