1. Home
  2. Question and Answer
  3. Houseplants
  4. Garden Articles
  5. Most Popular Plants
  6. Plant Nutrition

Stone Fruit Pest Management: Neem Oil for Plum/Peach and Poison Ivy Control

Fruit Tree Issue

Annette's plum and peach (Zone 7b, Raleigh NC): heavy fruit set but spots, holes, premature drop at ripening. Asks for spring fungicide/insecticide recommendations.

Nursery Protocol: Pure Neem Oil Only

  • 100% Pure Neem Oil (Dyna-Gro) — only spray used
  • Fungicide + miticide, non-washing, organic
  • 10+ years exclusive use at nursery
  • Alters leaf taste → pests leave (doesn't kill)
  • Builds residual protection
  • Safe for edibles

Poison Ivy Control (Follow-up)

Annette highly allergic, wants early control.

Non-Chemical Methods

  • Mow close in midsummer → plow/harrow OR graze sheep/goats
  • Small patches: grub out roots
  • Repeated mowing to 1-2 inches → eventual die-out
  • Hard-to-reach: smother with plastic/cardboard/deep mulch
  • Protective clothing essential

Chemical Avoidance

Kathy suggests non-chemical first — aligns with organic philosophy. Herbicides not recommended in this exchange.

Copyright © www.100flowers.win Botanic Garden All Rights Reserved