• About
  • Pests/Crops
  • Application
  • Label/SDS

Crymax Biological Insecticide

Crymax is a genetically engineered strain of Bt containing toxins from both Bt kurstaki and Bt aizawai strains.

Crymax hero image

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Crymax is for use against the following pests:

  • Armyworms
  • Cutworms
  • Budworms
  • Loopers
  • Borers
  • Caterpillars
  • Imported cabbageworm
  • Diamondback moth
  • Beet armyworm
  • Green cloverworm
  • Velvetbean caterpillar
  • Fruitworm
  • Hornworms
  • Tobacco budworm
  • Cotton bollworm
  • Twig borer
  • Codling moth
  • Gypsy moth
  • Grapeleaf skeletonizer
  • European corn borer

Crymax can be used with the following crops:

  • Vegetables and cole crops
  • Herb and spices
  • Pasture and hay crops
  • Fruit, nut, vine and field crops
  • Commercial flower and ornamental plants
  • Forest, shade tree and nursery stock
  • Turf

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Application

Active Ingredient: Bacillus thuringiensis kurstaki

Rates: 0.5-2.0 lb. per acre (see label)

Spray Interval: 3-7 days (see label)

Re-entry Interval: 4 hours

Days to Harvest: 0

Notes:

Crymax is a genetically engineered strain of Bt containing toxins from both Bt kurstaki and Bt aizawai strains.

Crymax is a biological insecticide specific for use against the lepidopterous larvae listed on the label. Crymax must be eaten by the larvae to be effective. Since Crymax is most effective against small, newly hatched larvae, an early scouting program to determine early infestations is recommended. After consuming a lethal dose of Crymax, larvae stop eating within an hour, but may remain on the foliage until they die, usually within several days. Affected larvae move more slowly and tend to become shriveled and discolored before dying.

Want to know more about BTs? Click here for BT 101.

Label/SDS

FIFRA Recommendation 2(ee) Label

Want to know more about BTs? Click here for BT 101.