Grass Grown For Seed - Controlling Slugs

Grass Grown For Seed

Metarex is NOT registered for use in the following states: ND, NE, SD & WY

As of January 1, 2018, New York State (NYS) classifies Metarex 4% Snail and Slug Bait (EPA Re. No. 7173-257) as a "Restricted Use Pesticide” (RUP). Please be aware that pesticide products classified as RUP are restricted in their purchase, distribution, sale, use and possession in NY state.

Slugs can cause significant damage to grass grown for seed, impacting stand and yield. The consistent mist, and steady, high rainfall characteristic of the primary growing areas that are ideal for seed germination, are also ideal for slugs to feed, thrive and propagate. In no-till plantings, with more cover and harborage, the risk of slug pressure is further increased.

Many seed growers wait to treat until slug activity is apparent, performing only spot baiting, and miss the opportunity to favorably impact stand & yield by getting timely control.

Grass Grown For Seed - Controlling Slugs

Juvenile slugs kill more seed, because they are often abundant in seedbeds. They also kill more seeds than larger adult slugs.

Grass Grown For Seed - Controlling Slugs

Stand loss from slug feeding

Slugs attack growing shoots and roots, killing the seedlings by destroying the growing points. If slugs are unable to reach the seeds, these shoots will be severely attacked but not necessarily killed. Seedlings are grazed by slugs feeding on the surface from the time they emerge, resulting in characteristic shredding of the blades.

Controlling Slugs – leveraging advanced slug bait technology

Liphatech, renowned researchers and crop advisors agree that a three-pronged approach is the best preventative strategy, and need not increase input costs, and may actually reduce them. These are:

Grass Grown For Seed - Controlling Slugs

Float rig

Grass Grown For Seed - Controlling Slugs

Second hopper box for slug bait

Grass Grown For Seed - Controlling Slugs

Clean nozzle assembly

  1. Surface applications blended with fertilizer
  2. In-furrow at planting
  3. Spot Broadcast Treatment

Some innovative growers are applying preventative protection earlier, by blending metaldehyde baits such as Metarex with fertilizer. Metarex’s weatherability and bulk density of 49 lb. / cubic foot allows it to blend easily and uniformly with nitrogen fertilizers, broadcast more consistently, and hold up longer in storage and in the field. Even more innovative, is baiting in-furrow at-planting.

Grass Grown For Seed - Controlling Slugs

Applying conventional slug baits in-furrow at-planting was previously difficult, since conventional slug pellets would crumble, absorb moisture, swell and clog gate openings and seed drill nozzles. Resulting pellet flow could be interrupted, reducing the consistency of the discharge. This also required frequent cleaning of gate openings and seed drill nozzles. Using Metarex eliminates these hardships, enabling growers to protect seedlings when they are most vulnerable: at pre-emergence

How is this possible?

Metarex offers of smaller, consistently-sized pellets produced using an exclusive manufacturing process that blends the active ingredient homogeneously throughout the pellet, while drying and hardening the pellet. Users have found that Metarex, wet-process manufactured similar to food-grade pasta, can become wet and will re-harden - offering superior weatherability, and yielding long field life.

Superior Weatherability

Grass Grown For Seed - Controlling Slugs

Elapsed time: 24 hrs. Conditions: Open Petri dish, 20mL water, 85% relative humidity.
Dr. Hipólito O’Farrill, Entomologist, University of Puerto Rico -  Mayaquez 11/2007.

98% of Metarex pellets are sized within 0.1 mm tolerance with no dust. In addition to holding up in planting equipment and fertilizer blends, Metarex’s uniformity helps it achieve more consistent broadcast (40-60 feet) when applied using electric spreaders. Using No-dust Metarex means your applicator rig and clothing do not turn blue. All of these factors enable Metarex to perform better at-planting and in-blending applications.

Note: Metarex is only labeled for broadcast application on grass grown for seed; it cannot be broadcast on any other crops.

Superior Uniformity

Grass Grown For Seed - Controlling Slugs

Superior Palatability

Beyond uniformity and quality control, Metarex offers superior palatability with the “bait carrier” favored three-to-one (3:1) versus fresh lettuce and carrots in slug trials. This superior attraction leads to earlier feeding resulting in faster control.

Grass Grown For Seed - Controlling Slugs

Superior Efficacy

Metarex also provides more pellets (36,000) per lb. Plentiful baiting points are critical for controlling slugs since slugs often do not  venture far to feed, especially less-mobile juveniles.

Metarex delivers maximum efficacy for up to 4 weeks after application, at rates as low as 5 lbs. per acre!

Grass Grown For Seed - Controlling Slugs

Dr. Glenn C. Fisher PhD. – Oregon State University
Tall Fescue; Berger Farm, Willamette Valley (4 replications)

Grass Grown For Seed - Controlling Slugs

Joe Cacka, Certified Crop Advisor, CPS - Crop Production Services
Grass Seed Trials Tangent, OR 2/05-03-05

Respected Researchers, PCA’s and CCA’s including Dr. Glenn C. Fisher (OSU), Joe Cacka (Western Farm Service), and advisors with Marion Ag, Simplot, and SureCrop have tested Metarex extensively, under challenging field conditions. See the Contact Us section for more information and Where to Buy.

Application Tips

Grass grown for seed: Apply at a rate of 5 to 20 lbs. per acre. The maximum application rate is 20 lbs. per acre (0.8 lb ai/A) per application. A maximum of 4 applications are permitted at a minimum retreatment interval of 21 days. Applications to turfgrass (other than grass grown for seed or in State and/or Federal invasive mollusk eradication operations) are prohibited. Apply bait by broadcast alone or by broadcasting blended with fertilizer. Application may also be made at planting using in-furrow (seed drill) application equipment. See entire label.

View our recommended Spreader Settings Table

Specimen Labels and Safety Data Sheets

Labels (Eng) Labels (Spa) SDS (Eng) SDS (Spa)
Labels (Eng) Labels (Spa) SDS (Eng) SDS (Spa)

Clover Grown for Seed

Vetch Grown for Seed

Brassica Grown for Seed

States Target Species / Use Pattern 24(c) SLN No. Labels SDS Usage Period Expires
OR Slugs & Snails (Broadcast) on Clover, Vetch, and other crops grown for seed OR-140005 Labels (Eng) SDS (Eng) N/A 12-31-19

Photo Credits: Clover: Oregon State University Extension, Vetch: Danielle Treadwell, Univ. of Florida,, Brassica: DeNoble Farm Fresh, Tillamook OR