Sil-MATRIX LC

Certis · Potassium silicate 29% · EPA Reg 70051-127 · Fungicide ✓ Last verified 2026-05-30

Free practice questions on this product's label, use, and safety.

Key facts From the EPA

Registration, signal word, restricted-use status and approved use sites are sourced from the U.S. EPA pesticide registry. EPA Reg. No. 70051-127. View this product's label on the EPA ↗ (EPA copy accepted February 26, 2021)

Active ingredient Potassium silicate 29%

Manufacturer Certis

EPA registration 70051-127

Category Fungicide

Target pests Aphids, Mites, Spiders, Whiteflies

According to the label From the product label

These application details were read from this product's label by our system to help you in the field. The label is the law — always confirm rates, sites and restrictions against the actual product label before mixing or applying. View the full label →

Sil-MATRIX® LC is a broad-spectrum preventative fungicide, miticide, and insecticide used for various agricultural and ornamental applications. Its active ingredient is Potassium silicate (29%). It is designed to control fungal diseases, spider mites, aphids, and whiteflies. The product can be used on a wide variety of crops including vegetables (root, tuber, leafy, brassica, legume, fruiting, cucurbit, stalk/stem), fruits (citrus, pome, stone, berry/small fruit, tree nuts), grains, oilseeds, and ornamentals. It is also approved for use on turf. For optimal performance, it should be applied on a regular, scheduled preventative basis. Application rates vary by crop and target pest, typically ranging from a 0.25% to 1% solution diluted in 20 to 250 gallons of water per acre. For turf, it is applied at a 1% to 2% solution. Users should note that plant sensitivities vary; it is recommended to test on a small area first to check for phytotoxicity, especially when using near blooms of certain species like Geranium, Marigold, Pansy, and Petunia. When handling, wear long-sleeved shirts, pants, socks, shoes, chemical-resistant gloves, and goggles or a face shield. Avoid contact with eyes and skin. Do not apply directly to water or areas where surface water is present.

Application rates & sites 1

Target pest	Indoor / Outdoor	Where on site	Rate	Dilution	Infestation level	Notes
fungal diseases, spider mites, aphids, and whiteflies	Both	vegetables, fruits, nuts, vine crops, field crops, ornamentals and turf	0.25% to 1% solution (foliar) or 1% to 2% (turf) solution concentration	1.4-4 quarts per 100 gallons of water (for 0.25%-1% range)	preventative	Apply on a regular scheduled preventative spray program.

Mixing & dilution 1

For	Where	Amount	Per	Finished strength	Notes
fungal diseases, spider mites, aphids, and whiteflies	Foliar	0.2 to 10 quarts	100 gallons of water	0.25% to 1% Sol.	Mix thoroughly and agitate until mixed; do not store diluted mixture.

Re-entry interval (REI) 4

PPE required Long-sleeved shirt and long pants, socks and shoes, chemical-resistant gloves, goggles or face shield when handling undiluted concentrate.

Timing & weather

Apply up to the day of harvest (0-day PHI) for most crops.
For turf, apply in a minimum of 40 gallons finished spray per acre.

Use restrictions 3

Do not apply directly to water or areas where surface water is present, or to intertidal areas below the mean high water mark.
Do not apply foliar sprays to open blooms of Geranium, Marigold, Pansy, and Petunia.
Do not apply through any irrigation system unless the supplemental labeling on chemigation is attached.

Documents

📄 Label 📋 SDS 🔧 Tech Sheet 📢 Marketing

Additional documents (7)

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Label SDS

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