Diagnosing Pests (Integrated Pest Management)

> Always follow your state’s regulations and the label. Start with prevention and least-toxic options.

Cross-crop pests (common)

  • Aphids: Sticky honeydew, curled new growth; manage with strong water spray, lady beetles, insecticidal soap.
  • Spider mites (hot, dry weather): Stippling on leaves, fine webbing; increase humidity, wash foliage, use miticidal soap or horticultural oil.
  • Scale/Mealybugs (containers, passionfruit): Bumps or cottony masses on stems; prune heavily infested parts; horticultural oil; repeat at 7–10 d.

Blackberries/Raspberries

  • Spotted Wing Drosophila (SWD): Larvae in soft fruit late season; pick frequently, chill quickly, use fine mesh netting pre-blush; maintain sanitation (remove overripe fruit).
  • Raspberry cane borer: Flagging shoot tips with girdles; prune out 6–8 in below injury.
  • Japanese beetle: Skeletonized leaves; hand-pick into soapy water mornings; row covers where practical.

Mulberry

  • Generally low pest pressure; watch for whiteflies and scale in sheltered sites; treat with soap or oil.

Passionfruit

  • Scale & mealybugs: Common in containers; oil/soap, repeat.
  • Caterpillars: Hand-pick; Bacillus thuringiensis (Bt) works when larvae are small.

Pomegranate

  • Leaf-footed bugs / stink bugs: Piercing injury leads to off-flavored arils; hand-remove, trap crops, perimeter treatment if severe.
  • Aphids: Distorted shoots; wash off and use soap if needed.