NemaShield HB contains beneficial nematodes that provide a safe, effective control of a variety of pest insect larvae. The nematode actively searches for insect larva and enters the larva through a natural body opening, sometimes directly through the skin. The nematode excretes specific bacteria from its digestive tract before it starts to feed. The bacteria multiply very rapidly and convert the host tissue into products that can easily be taken up by the nematodes. The larva dies within a few days and the color changes to orange-red or red-brown. The nematodes multiply and develop within the dead insect. As soon as the nematodes are in the infectious third stage, they leave the old host and start searching for new larvae. When there is no new host present, the nematode population will slowly decrease.

NemaShield HB is Labeled for the Following Insect Pests NemaShield HB controls soil dwelling and boring larvae (caterpillars) of many species of beetles and flies. Target hosts are: cutworms, plant-boring larvae such as the banana moth, various other caterpillars, vine weevil larvae, white grubs and leatherjackets. This nematode is especially effective against the black vine weevil, Otiorhynchus sulcatus.

NemaShield HB General Treatment

• Packages contains either 50 million or 500 million nematodes. The general application rate is about 25 million per 1,000 square feet (1 billion nematodes per acre), depending on infection level.
• To prepare the solution Empty the contents of the package into a bucket containing about one gallon of cool water (60 to 75°F), then stir. Let the entire solution soak for 5 minutes. Stir again thoroughly, then transfer the contents into a larger barrel or spray tank and fill it up with water until the required amount of solution is reached. Apply the solution immediately, using a watering can, irrigation system, knapsack or motorized sprayer (maximum pressure of 150 psi). To avoid blockages, all screens should be removed. The spray nozzle opening should be at least 1 mm (1,000 micron). Evenly spread the solution over the ground area to be treated. Continuous agitation should take place to prevent the nematodes from settling out. Water plants after application to wash the nematodes off the foliage and into the ground.
• The nematodes should be applied when pest insects are present, but at low population density. For optimal results, apply to moist soil media with temperatures between 50°F and 86°F.
• Keep the soil moist during the first two weeks after application.
• Nematodes are susceptible to UV light, apply on cloudy days or late in the afternoon or evening.
• Nematodes can be stored in the refrigerator until the expiration date on the package.
• Do not freeze.

grubGONE! and beetleGONE! (Btg) as an Alternative

Though nematodes are still effective in pest insect control, Green Earth Ag & Turf now recommends grubGONE! for all its customers treating plants, trees, and turf for meddlesome grubs and beetles. grubGONE! uses a new, university tested biological agent (Btg) that safely targets grubs and beetles without harming pollinators. It is a safe, natural, and highly effective product available from Green Earth. 

NemaShield HB Ingredient

• Heterorhabditis bacteriophera.

NemaShield HB Available Sizes and Coverage

• 50 Million Nematodes (Covers 2,000 Square Feet).
• 500 Million Nematodes (Covers 20,000 Square Feet or 1/2 Acre).

Label

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Application Info

SDS