1. Insect
  2. Vegetable Crops
  3. Vegetable Crops
  4. Hosts and Pests of Vegetable Crops

Corn, sweet-Western bean cutworm

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Image related to Corn, sweet-Western bean cutworm
Western bean cutworm
Loxagrotis albicosta Smith
Female adult
© Ken Gray Insect Image Collection
Image related to Corn, sweet-Western bean cutworm
Western bean cutworm
Loxagrotis albicosta Smith
Showing damage
© Ken Gray Insect Image Collection
Image related to Corn, sweet-Western bean cutworm
Western bean cutworm
Loxagrotis albicosta Smith
Newly hatched
© Ken Gray Insect Image Collection

Loxagrotis albicosta

Pest description, crop damage and life history

See:

Common Pests of Vegetable Crops

Management-chemical control: HOME USE

Apply any one of these materials to the soil surface at first sign of cutworm activity. Consult label. Minimum pre-harvest interval (PHI) varies with crop. Difficult to control. Where cutworms are on the soil surface, a carbaryl drench, when bees are not present, may help. Beans, tomatoes, and late corn are most often "hoed" by cutworms. Attack varies in severity with locality and year.

  • azadirachtin (neem oil)-Some formulations are OMRI-listed for organic use.
  • bifenthrin (often as a mix with zeta-cypermethrin)
  • carbaryl
  • cyfluthrin
  • deltamethrin
  • esfenvalerate
  • gamma-cyhalothrin
  • insecticidal soap (as a mix with spinosad)-Some formulations are OMRI-listed for organic use.
  • lambda-cyhalothrin
  • kaolin-When applied as a spray to leaves, stems, and fruit, it acts as a repellant to some insect pests. Some formulations are OMRI-listed for organic use. Not registered for use in OR.
  • permethrin
  • 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

  • Bacillus thuringiensis (Javelin WG, XenTari) at 0.12 to 1.5 lb/A Javelin WG, and 0.5 to 1.5 lb/A of XenTari. PHI 0 days. REI 4 hr. Slow acting. May need multiple applications. Add an appropriate spreader-sticker to enhance control. Most effective on small larvae. Some formulations are OMRI-listed for organic production.
  • beta-cyfluthrin (Baythroid XL) at 0.016 to 0.022 lb ai/A soil application. PHI 0 days. REI 12 hr. Retreatment interval 2 days. Do not exceed 0.22 lb ai/A per year.
  • bifenthrin/zeta-cypermethrin (Hero) at 0.04 to 0.1 lb ai/A. PHI 3 days. REI 12 hr. Retreatment interval 3 to 5 days. Do not exceed 0.266 lb ai/A per season.
  • Burkholderia spp. (Venerate XC) at 1 to 4 quarts/A product. PHI 0 days. REI 4 hr. OMRI-listed for organic use.
  • carbaryl (Sevin 5 Bait) at 1 to 2 lb ai/A. PHI 2 days for harvest of ears, 14 days for forage, 48 days for fodder. REI 24 hr. Retreatment interval 3 days. Limit 8 treatments per year. Do not exceed 16 lb ai/A per year.
  • chlorantraniliprole (Coragen) at 0.045 to 0.098 lb ai/A. PHI 1 day. REI 4 hr. Limit 4 treatments per crop. Retreatment interval 1 day. Do not exceed 0.2 lb ai/A per season.
  • chlorantraniliprole/lambda-cyhalothrin (Besiege) at 0.06 to 0.1 lb ai/A. PHI 1 day. REI 24 hr. Retreatment interval 1 day. Do not exceed 0.48 lb ai of lambda-cyhalothrin or 0.2 lb ai of chlorantraniliprole per acre per growing season.
  • Chromobacterium subtsugae (Grandevo) at 0.3 to 0.9 lb ai/A per 100 gal. PHI 0 days. REI 4 hr. OMRI-listed for organic production.
  • cyfluthrin (Tombstone) at 0.025 to 0.044 lb ai/A. PHI 0 days. REI 12 hr. Retreatment interval 7 days. Do not exceed 0.44 lb/A per season.
  • esfenvalerate (Asana XL) at 0.015 to 0.03 lb ai/A. PHI 1 day. REI 12 hr. Do not exceed 0.5 lb ai/A per year. Do not apply within 25 ft of an aquatic habitat, 150 ft if applied by air.
  • gamma-cyhalothrin (Declare) at 0.0025 lb ai/1,000 row ft at planting or 0.01 to 0.015 lb ai/A foliar application. PHI 1 day. Do not exceed 0.24 lb ai/A total application per season.
  • lambda-cyhalothrin (Warrior II) at 0.02 to 0.03 lb ai/A. PHI 1 day. REI 24 hr. Do not exceed 0.48 lb ai/A per year. Do not harvest for feed or graze livestock for 21 days. Retreatment interval 4 days.
  • lambda-cyhalothrin/tebuconazole (Crossover) at 0.14 to 0.16 lb ai/A. REI 19 days. PHI 21 days for ears & forage; 49 days for fodder. Do not exceed 0.48 lb ai/A tebuconazole or 0.12 lb ai/A lambda-cyhalothrin. Product not registered for use in WA.
  • methoxyfenozide (Troubadour 2F) at 0.06 to 0.25 lb ai/A. PHI 3 days for ears or forage; 21 days for dry fodder. REI 4 hr. Do not exceed 1 lb ai/A per season. An adjuvant improves performance. Retreatment interval 5 days.
  • spinetoram (Radiant SC) at 0.023 to 0.0469 lb ai/A. PHI 1 day for ears, 3 days for forage. REI 4 hr. Retreatment interval 4 days. Do not exceed six applications or 0.281 lb ai/A per season. Follow resistance management procedures on the label.
  • spinosad (Success, Entrust SC) at 0.047 to 0.094 lb ai/A. PHI 1 day for ears, 7 days for forage. REI 4 hr. Treat eggs at hatch and small larvae. Do not exceed 0.45 lb ai/A per crop. Spinosad takes several days to achieve full effect. Monitor fields and pest populations carefully. Multiple applications may be necessary. Entrust SC is OMRI-listed for organic use.