Alpine WSG mixes at a rate of 10 to 30 grams per gallon of water, depending on the pest you’re targeting. One gallon of finished solution covers roughly 1,000 square feet. The exact amount of granules you add to your sprayer determines whether you’re making a low, medium, or high concentration mix.
Mix Rates by Pest Type
The range of 10 to 30 grams per gallon gives you flexibility based on what you’re treating. For lighter infestations and smaller insects like ants, the lower end of the range (around 10 grams per gallon) is typical. For tougher pests like cockroaches, bed bugs, or stinging insects, you’ll use the higher end, closer to 20 to 30 grams per gallon. Always check the product label’s spray dilution chart for the specific pest you’re dealing with, since the correct rate varies by species.
Alpine WSG comes as water-soluble granules, so the powder dissolves cleanly in water. Fill your sprayer about halfway with water, add the measured granules, then top off to the full gallon. Shake or agitate the tank to make sure everything is fully dissolved before spraying. This prevents clumps from clogging your sprayer nozzle.
Coverage and Application Rate
One gallon of mixed solution covers 1,000 square feet regardless of whether you’re spraying indoors or outdoors. That coverage rate stays the same across the full 10 to 30 gram concentration range. So for a typical 2,000 square foot home, you’d mix two gallons of solution if you’re doing a full interior treatment.
For a quick reference on how much product you’ll need:
- 1,000 sq ft: 1 gallon of water + 10–30 grams of Alpine WSG
- 2,000 sq ft: 2 gallons of water + 20–60 grams of Alpine WSG
- 3,000 sq ft: 3 gallons of water + 30–90 grams of Alpine WSG
Indoor Application
Indoors, Alpine WSG is applied as spot treatments, crack and crevice treatments, or void applications. You’re targeting the areas where pests travel, nest, or hide: along baseboards, behind appliances, around plumbing penetrations, inside wall voids, and under sinks. This isn’t a broadcast spray you apply to entire floors or countertops. Focus on the edges and crevices where insects actually move.
Outdoor and Perimeter Application
Outdoors, you can apply Alpine WSG to yards, lawns, exterior walls, foraging trails, nests, landscaping, and shaded resting areas. Perimeter treatments are one of the most common uses. Spray around doors, windows, utility entry points, weep holes, and behind siding to create a barrier that helps prevent pests from getting inside.
One restriction worth noting: in New York State, outdoor use is limited exclusively to crack and crevice or spot treatments on structural components, stumps, utility poles, and fences. Broadcast lawn or landscape spraying is not permitted there.
Drying Time and Re-Entry
Alpine WSG is considered safe for people and pets once the treated surfaces have fully dried. Keep everyone out of the area while you’re spraying and while surfaces are still wet. Drying typically takes 2 to 4 hours depending on ventilation, humidity, and how heavily you applied. Open windows or run fans to speed things up, especially for indoor treatments. Once everything is dry to the touch, the treated area is ready to use normally.
Tips for Getting the Mix Right
A standard kitchen scale that reads in grams is the easiest way to measure Alpine WSG accurately. The 10-gram packets that come in some packages make low-rate mixing simple, since one packet equals one gallon at the lowest concentration. If you’re working from a larger container, weigh out what you need rather than eyeballing it. Too little product may not control the pest effectively, and too much wastes product without improving results.
Alpine WSG dissolves in water without leaving visible residue on most surfaces, which makes it a popular choice for indoor use where staining would be a problem. It works well in standard pump sprayers, and the solution stays stable once mixed, so you can use it throughout the day without needing to remix.