Steinernema kraussei Nematodes 250 mil


TARGET PEST: Black Vine Weevil 

FOR YOUR FILES: Beneficial Nematode Tech Sheet (PDF)

Nemasys L Technical Information Bulletin

Nemasys L Label

Get more information on using beneficial nematodes here.

  • Steinernema kraussei is a naturally occurring parasitic nematode that seeks out the larval and pupal stages of black vine weevil (Otiorhynchus sulcatus). Effective at temperatures down to 40F and up to 86F. Provides long-term protection against vine weevil larvae. 
  • A complete life cycle takes 12 to 15 days at room temperature. The nematodes enter the insect pest through body openings. Once inside they reproduce and release a symbiotic bacterium which is toxic to the host. The pests are killed within a few days and a second generation of infective juvenile nematodes exit the host and begin the cycle again. 
  • Entomopathogenic nematodes are supplied as infective juveniles, which are usually applied as a soil drench. Not all nematodes are alike. They specialize in which pests they attack and kill and are effective at different temperatures.
  • A tray of 50 million nematodes treats 1,075 sq. ft. A tray of 250 million nematodes treats 5,500 sq. ft. Use 50 million in 100 gallons of water. Apply at 90 gallons per 1,000 sq. ft. 
  • Water is the carrier. Apply nematodes with a sprayer, injector, hose end sprayer or even a watering can. Plug trays can be dipped in a nematode solution. If using an injector, set the dilution to 1:100. It is important to remove all filters or screens (50 mesh or finer) in any spray lines so that the nematodes can pass through unimpeded and undamaged. Keep spray pressure below 300 psi. See Nematode Tech Sheet for further information.

250 mil quantity

Orders for Nematodes must be received by noon on Friday for shipment the following week.  If the deadline is past, please call us and we will help you find a solution ASAP. (360) 656-6680

See order deadlines and shipping information.

Learn about release instructions for beneficial insects.

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