Bean, lima-Leafhopper

Includes six-spotted leafhopper (Macrosteles fascifrons)

Pest description, crop damage and life history

See:

Pest monitoring Leafhoppers are collected easily with sweep nets. Yellow sticky traps also are useful in monitoring.

Management-cultural control

Mulches of aluminum foil and straw help reduce disease incidence. Row covers also can be used on higher value crops. Destruction of weed species known to harbor aster yellows is also important.

Management-chemical control: HOME USE

  • acetamiprid
  • azadirachtin (neem oil)-Some formulations are OMRI-listed for organic use.
  • bifenthrin
  • carbaryl
  • imidacloprid
  • malathion
  • plant essential oils (rosemary, etc.)-Some formulations are OMRI-listed for organic use.
  • pyrethrins (often combined with other ingredients)-Some formulations are OMRI-listed for organic use.
  • zeta-cypermethrin

Management-chemical control: COMMERCIAL USE

  • acephate (numerous products) at 0.5 to 1 lb ai/a. PHI 14 days, 1 day for lima beans harvested in succulent form. REI 24 hr. Do not feed treated vines. Do not exceed 2 lb ai/a per year.
  • acetamiprid (Assail 30SG) at 0.044 to 0.1 lb ai/a. PHI 7 days. REI 12 hr. Retreatment interval 7 days. Limit 3 applications per season. Do not exceed 0.3 lb ai/a per season.
  • bifenthrin (Capture, Sniper) at 0.025 to 0.1 lb ai/a. PHI 3 days. REI 12 hr. Do not exceed 0.2 lb ai/a per year. Do not apply within 25 ft of an aquatic habitat, 150 ft if applied by air.
  • carbaryl (Sevin) at 1 lb ai/a. PHI 3 days for harvest of succulents, 21 days for harvest of dried, 14 days for forage, and 21 days for hay. REI 12 hr. Retreatment interval 7 days. Do not exceed 6 lb ai/a per crop. Toxic in aquatic habitats. Do not apply carbaryl dust to blooming weeds because of severe hazard to pollinating bees. Latex-based formulations, such as Sevin XLR Plus, are less hazardous to bees.
  • chlorantraniliprole/lambda-cyhalothrin (Voliam Xpress) at 0.059 to 0.088 lb ai/a. PHI 7 days for edible podded and succulent shelled legumes, 21 days for dried shelled legumes. REI 24 hr. Retreatment interval 5 days. Do not exceed 0.12 lb ai of lambda-cyhalothrin or 0.2 lb ai of chlorantraniliprole per acre per growing season. Do not graze livestock or harvest vines for forage or hay.
  • cyfluthrin (Tombstone) at 0.01 to 0.015 lb ai/a. PHI 7 days. REI 24 hr. Retreatment interval 5 days. Do not exceed 0.06 lb ai/a per season. Do not graze livestock or harvest for vines for forage or hay.
  • dimethoate (numerous products) at 0.25 to 0.5 lb ai/a. PHI 0 days when harvested mechanically. REI 48 hr. Do not feed treated vines.
  • esfenvalerate (Asana XL) at 0.015 to 0.05 lb ai/a. PHI 21 days. REI 12 hr. Do not exceed 0.2 lb ai/a per season. Dry beans only.
  • gamma-cyhalothrin (Proaxis) at 0.01 to 0.015 lb/a. PHI 21 days for dry shelled or 7 days for succulent. REI 24 hr. Do not apply within 25 ft of an aquatic habitat, 150 ft if applied by air. Do not graze. Do not exceed 0.06 lb ai/a per year.
  • imidacloprid (Provado, Prey, Sherpa) at 0.04 lb ai/a. PHI 7 days. REI 12 hr. Do not exceed 0.13 lb ai/a per season. Do not graze or harvest for feed. Do not apply within 25 ft of an aquatic habitat, 150 ft if applied by air.
  • imidacloprid (Admire) at 0.25 to 0.375 lb ai/a. Soil application only. PHI 21 days. REI 12 hr. Do not exceed 0.375 lb ai/a per season. Do not apply within 25 ft of aquatic habitat.
  • lambda-cyhalothrin (Warrior II) at 0.02 to 0.03 lb ai/a. PHI 7 days for green beans, 21 days for dry beans. REI 24 hr.