Pea, green and dry-Thrips

Includes Frankliniella spp.

Pest description, crop damage and life history

See:

Pest monitoring Treatment is usually not necessary on seedlings, because most plants recover from thrips injury. Thrips are also beneficial at this time because of their role as mite predators.

Management-biological control

Minute pirate bugs play a major role in controlling thrips populations.

Management-cultural control

Thrips populations tend to build up on weeds. Cultivating nearby weedy areas before the crop emerges reduces the potential of a thrips problem when the weeds begin to dry out. Cultivating weedy areas after crop emergence increases thrips problems.

Management-chemical control: HOME USE

  • acetamiprid-Do not use on green peas.
  • azadirachtin (neem oil)-Some formulations are OMRI-listed for organic use.
  • Beauvaria bassiana-Some formulations are OMRI-listed for organic use.
  • carbaryl
  • gamma-cyhalothrin-Not for use on dry peas.
  • imidacloprid
  • insecticidal soap-Some formulations OMRI-listed for organic use.
  • kaolin-When applied as a spray to foliage and stems, it acts as a repellent to some insect pests. Some formulations are OMRI-listed for organic use.
  • malathion
  • 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

  • acetamiprid (Assail 30SG) at 0.085 to 0.1 lb ai/a. PHI 7 days. REI 12 hr. Retreatment interval 7 days. Do not exceed 0.3 lb ai/a per season. Succulent shelled peas only.
  • bifenthrin (Capture, Sniper) at 0.033 to 0.1 lb ai/a. PHI 3 days. REI 12 hr. Do not exceed 0.2 lb ai/a per season. Do not apply within 25 ft of an aquatic habitat, 150 ft if applied by air.
  • borate complex (Prev-Am) apply as 0.8% solution to complete coverage. PHI 12 hr. REI 12 hr. OMRI-listed for organic use.
  • gamma-cyhalothrin (Proaxis) at 0.0075 to 0.015 lb ai/a. PHI 7 days for edible podded and succulent shelled peas, or 21 days for dry shelled. REI 24 hr. Do not exceed 0.06 lb ai/a per season.
  • fenpropathrin (Danitol) at 0.2 lb ai/a. PHI 7 days. REI 24 hr. Retreatment interval 7 days. Do not exceed 0.8 lb ai/a per season.
  • imidacloprid (Admire) at 0.25 to 0.375 lb ai/a. Soil application only. PHI 21 days. REI 12 hr. Do not exceed 0.38 lb ai/a per season.
  • lambda-cyhalothrin (Warrior II) at 0.02 to 0.03 lb ai/a. PHI 7 days for succulent peas, 21 days for dry peas. REI 24 hr. Do not graze or feed to livestock. Do not exceed 0.12 lb ai/a per season. Do not apply within 25 ft of an aquatic habitat, 150 ft if applied by air.
  • spinetoram (Radiant SC) at 0.0391 to 0.0781 lb ai/a. PHI 28 days for dry peas, 3 days for fresh peas. Retreatment interval 4 days. Do not exceed six applications or 0.219 lb ai/a per season. Do not apply to seedling leafy vegetables grown for transplant within a greenhouse, shade house, or field plot. Follow resistance management procedures on the label.
  • spinosad (Success) at 0.071 to 0.094 lb ai/a. PHI 3 days for succulent peas; 28 days for dry peas. REI 4 hr. Do not exceed 0.45 lb ai/a (succulent peas) or 0.188 lb ai/a (dried peas) per season. Some formulations are OMRI-listed for organic use.
  • zeta-cypermethrin (Mustang, Mustang Max) at 0.04 to 0.05 lb ai/a (Mustang) or 0.2 to 0.25 lb ai/a (Mustang Max). PHI 1 day for succulent peas, 21 days for dry peas. REI 12 hr. Retreatment interval 5 days. Do not exceed 0.3 lb ai/a (Mustang) or 0.15 lb ai/a (Mustang Max) per season. Do not apply within 25 ft of an aquatic habitat, 150 ft if applied by air.