Parsnip-Leafhopper

Includes six-spotted leafhopper (Macrosteles quadrilineatus)

Pest description, crop damage and life history

See

Pest monitoring Leafhoppers are collected easily with sweep nets. Yellow sticky traps also can be used to monitor.

Management-cultural control

Destruction of weed species known to harbor aster yellows is important.

Management-chemical control: HOME USE

  • azadirachtin (neem oil)-Some formulations are OMRI-listed for organic use.
  • carbaryl
  • cyfluthrin
  • imidacloprid
  • plant-derived essential oils (rosemary, peppermint etc.)-Some formulations are OMRI-listed for organic use.
  • pyrethrins-Some formulations are OMRI-listed for organic use.
  • spinosad-Some formulations are OMRI-listed for organic use.
  • zeta-cypermethrin

Management-chemical control: COMMERCIAL USE

  • alpha-cypermethrin (Fastac EC) at 0.014 to 0.025 lb ai/a. PHI 1 day. REI 12 hr. Retreatment interval 7 days. Do not exceed 0.075 lb ai/a per season.
  • carbaryl (Sevin 4F) at 0.5 to 1 lb ai/a. PHI 14 days. REI 12 hr. Allow at least 7 days between applications. Do not exceed 6 lb ai/a per season. Limit 5 treatments per season.
  • deltamethrin (Delta Gold) at 0.018 to 0.028 lb ai/a. PHI 3 days. REI 12 hr. Retreatment interval 3 days. Do not exceed 0.14 lb ai/a per season.
  • flupyradifurone (Sivanto 200SL) at 0.09 to 0.14 lb ai/a. PHI 7 days. REI 4 hr. Retreatment interval 10 days. Do not exceed o.365 lb ai/a per season.
  • imidacloprid (Admire Pro) at 0.25 to 0.38 lb ai/a soil; 0.043 lb ai/a foliar. PHI 21 days soil; 7 days foliar. REI 12 hr. Do not exceed 0.38 lb ai/a soil or 0.13 lb ai/a foliar per season. Retreatment interval 5 days foliar.
  • imidacloprid (Provado, Prey) at 0.044 lb ai/a. PHI 7 days. REI 12 hr. Retreatment interval 5 days. Do not exceed 0.23 lb ai/a per season.
  • malathion (Gowan Malathion 8) at 1.25 lb ai/a. PHI 7 days. REI 24 hr. Retreatment interval 7 days. Limit 3 treatments per year
  • thiamethoxam (Actara) at 0.023 to 0.047 lb ai/a. PHI 7 days. REI 12 hr. Retreatment interval 7 days. Do not exceed 0.125 lb ai/a per season.
  • thiamethoxam (Platinum) at 0.078 to 0.187 lb ai/a. REI 12 hr. Retreatment interval 7 days. Do not exceed 0.187 lb ai/a per season.
  • zeta-cypermethrin (Mustang) at 0.022 to 0.05 lb ai/a. PHI 1 day. REI 12 hr. Do not exceed 0.3 lb ai/a per year.