Grubs destroying your perfect lawn? You’re in the chemical aisle, looking at two big choices: Chlorantraniliprole and Dylox.

Both kill grubs, but they work very differently. They have different application times. They give different results.

Chlorantraniliprole offers months of protection. You apply it less often. It prevents grubs before they become a problem.

Dylox works fast. It knocks out grubs that are already there. Use it for active infestations.

Pick the wrong product? Your grass turns brown even after treatment. Or you waste money on a fix that’s too late.

This comparison covers the active ingredients. It explains application windows and coverage rates. You’ll see real-world performance data. This helps you pick the right product for your lawn’s grub problem. No more guessing about pest control.

Overview Between Both Of Them

Chlorantraniliprole is an anthranilic diamide insecticide. It targets ryanodine receptors in insect muscle cells. This causes paralysis and kills grubs within days after they eat it.

Dylox uses trichlorfon, an organophosphate compound. It blocks certain enzymes in the nervous system. Nerves get overstimulated. Grubs die fast.

These chemicals work differently. Chlorantraniliprole binds only to insect receptors. Mammals, birds, and helpful insects stay safe. The compound stays active in soil for 90-120 days after one application.

Trichlorfon works on many organisms. It affects more than just grubs. The compound breaks down fast in wet soil—usually within 7-14 days. This short life means it won’t prevent future problems.

Both products kill Japanese beetle grubs, European chafers, and masked chafers. But you apply them at different times. Chlorantraniliprole works best as prevention from late spring through mid-summer. Dylox works best as treatment in late summer and fall. Grubs feed near the surface during these months.

Know these differences. You can pick the right product for your lawn’s grub problem and treatment timing.

Active Ingredients

Chlorantraniliprole comes in three main types. Each fits different lawn care needs. The 0.2% granular version sells as Acelepryn. You can spread it with standard lawn tools. Pros like the 18.4% liquid suspension. It mixes precisely and sprays exactly where needed. Homeowners pick Scott’s GrubEx most often. This one has 0.08% granular chlorantraniliprole. Just apply it straight from the bag.

Concentration changes how much area you cover. The 18.4% liquid covers more space with less product. Mix it with water first. The 0.2% granular needs no mixing. Spread it out and water your lawn. GrubEx at 0.08% gives less power but more safety for home use.

Dylox has 6.2% trichlorfon in it. This chemical breaks down fast in water. Rain or sprinklers push it down to the roots. Grubs eating near the top hit the chemical in hours. It works fast because it dissolves well. But it doesn’t last as long in soil.

The U.S. drug ingredient market hit USD 91.76 billion in 2025. By 2033, it should reach USD 131.98 billion. That’s 4.6% growth per year. Lab-made ingredients hold 65.78% of sales. People buy more chemical compounds like chlorantraniliprole and trichlorfon than natural options.

Small molecules cover both grub killers. They make up 57.18% of volume in 2025. They’re cheap to make and work well. That keeps demand high. North America takes 39.64% of global sales. The U.S. makes 41% of all production as of 2023.

Pick your type based on your gear and lawn size. Liquid fits spray equipment. Granular works in spreaders. Strength controls how much you need per thousand square feet.

Target Pests

Chlorantraniliprole kills nine major lawn pests. White grubs top the list. These include Japanese beetle larvae, European chafers, and masked chafer grubs. The chemical stops turf caterpillars before they chew grass blades. European crane larvae die after contact with treated soil. Billbugs bore into grass stems. They can’t survive chlorantraniliprole.

Annual bluegrass weevils attack cool-season grasses. One treatment protects against their spring feeding. Armyworms march across lawns in groups. Cutworms hide during the day and feed at night. Sod webworms build silk tunnels in thatch. Chinchbugs suck plant juices from grass crowns. Chlorantraniliprole handles all of them with one treatment.

Dylox targets ten common lawn pests. White grub larvae face the same fate as with chlorantraniliprole. But Dylox adds three pests to its kill list: mole crickets, ants, and ticks. Mole crickets tunnel through soil and damage roots. The fast-acting trichlorfon stops them within 24 hours.

Both products control seven pests. These are annual bluegrass weevil, sod webworms, cranberry girdler, cutworms, armyworms, and chinch bugs. The overlap is big. Seven out of ten Dylox targets appear on the chlorantraniliprole list too.

Dylox stands out for tick control. Ticks hide in tall grass near lawn edges. Trichlorfon kills them on contact. Chlorantraniliprole doesn’t target ticks. It focuses on insects that eat treated grass or soil.

U.S. farms used 3.70 million tonnes of pesticide active ingredients in 2022. That’s 4% more than 2021. herbicides take the biggest share. bug killers like chlorantraniliprole and trichlorfon make up the rest. Peak pesticide use hit 0.5 million tons in 1996. The 2018 numbers came close to that record.

Pick chlorantraniliprole for broad bug prevention. Choose Dylox for fast tick and mole cricket control along with grub treatment.

Application Timing

Chlorantraniliprole needs planning ahead. Put it down between late April and June across most U.S. regions. This gets the chemical into soil before grubs hatch. The compound stays active for 90-120 days. That covers the entire grub feeding season.

Spring works best in April and May. Soil hits 50-60°F during these months. The chemical sticks to soil particles at these temps. Rain and watering push it into the root zone. Grubs hatch in mid-summer. They eat treated grass roots right away. The poison enters their system on first contact.

You can stretch this through July in northern states. Cold springs slow down egg hatch. Late June or July still catches grubs before heavy feeding starts. But you lose some protection time. A July treatment gives you 60-75 days of coverage instead of the full 120 days.

The best timing sits 2-3 months before grub feeding peaks. Japanese beetles lay eggs in July. European chafers drop eggs in late June. Put down chlorantraniliprole in May. The chemical waits in soil for 8-12 weeks. Fresh grubs hit it right away.

Dylox follows a different schedule. Use it after you spot lawn damage. Brown patches show up in late summer and fall. That’s August through October in most areas. Grubs feed hard near the surface during these months. They’re bigger now—third stage. They eat more and cause visible damage.

This product needs water right away. Spread Dylox granules or spray. Then run sprinklers for 20-30 minutes. Water pushes trichlorfon down to the root zone. Grubs touch the chemical within hours. They stop feeding in 24 hours. Most die within 3-5 days.

Spring works for Dylox too. Grubs feed again in April and May before they pupate. Missed fall treatment? Hit them in spring. Same rule: water it in right after spreading. Don’t wait more than one hour.

Fall timing beats spring for Dylox. Grubs stay near the surface longer in autumn. Cooler soil keeps them active. Spring grubs dig deeper as soil warms. They get ready to become beetles. Deeper grubs avoid the chemical.

Match your product to your goal. Chlorantraniliprole stops problems before they start. Dylox fixes problems you can see. Bad timing wastes money and lets grubs keep damaging your lawn.

Efficacy and Speed

Chlorantraniliprole kills grubs for 90-120 days after one application. Field trials prove 85-95% of larvae die within 14-21 days after soil treatment. The chemical sticks to soil particles. It releases over time. Grubs die as they eat treated grass roots all season long.

Results take longer than contact killers. You’ll see fewer grubs in 10-14 days. Best results show up between weeks 2 and 4. Here’s the trade: one spring treatment protects your lawn through September. No need for repeat applications during hot summer months.

University trials show third-instar grubs die at 92% rates. Second-instar larvae die at 97% rates. The product works best on young grubs that eat a lot. Older grubs eat less. They take more time to eat enough poison.

Dylox works differently. Trichlorfon kills grubs in 24-72 hours after contact. Surface-feeding larvae die within one day in most cases. Deeper grubs take 3-5 days as the chemical soaks down with water.

Field tests show 80-90% grub kill in one week. Brown patches recover in 10-14 days as dead grubs stop eating. But protection ends quickly. The product breaks down in 7-14 days with normal soil moisture. Heavy rain breaks it down in 5-7 days.

You need repeat treatments every 3-4 weeks during bad infestations. Fall grubs need 2-3 Dylox applications between August and October. That costs $60-90 versus one $40 chlorantraniliprole treatment.

Speed comparison: Dylox wins for fast control. Chlorantraniliprole wins for long-term prevention. Dylox kills current grubs 5-7x faster. Chlorantraniliprole stays active in soil 8-12x longer.

Control rates vary between products. Chlorantraniliprole keeps 85%+ kill rates across different soil types and pH levels. Dylox drops to 65-75% in sandy or alkaline soils. Breakdown happens faster there. Moisture affects trichlorfon more. Dry conditions cut effectiveness by 20-30%.

Pick based on your needs. Need results this week? Use Dylox. Want four months of protection? Pick chlorantraniliprole. Both products kill 80%+ of grubs under good conditions. Timing and soil type affect how well they work.

Coverage and Usage Notes

One bag of chlorantraniliprole granules covers different areas. Coverage depends on how strong you mix it. The standard 14.35 lb bag of GrubEx handles 5,000 square feet. That works for most front yards or a medium backyard section. A full acre of turf? You’ll need three bags.

Spread the granules on dry grass only. Wet grass blades trap granules before they reach the soil. Use a broadcast spreader. Set it to the rate shown on the bag. Most GrubEx products work best at setting 4-5 on rotary models.

Water the lawn within 24 hours after spreading. Give it ½ inch of water or wait for rain. This moves chlorantraniliprole down to the root zone. That’s where grubs eat. The chemical sticks to soil matter at the top. Normal rain won’t wash it away after that first watering.

Dylox covers twice as much area per bag. One package treats 10,000 square feet. You get double coverage because trichlorfon kills fast at lower strength than chlorantraniliprole. But you still need to apply it right.

Water matters most with Dylox. Put down ½ inch of water right after spreading granules. Don’t wait even one hour. Trichlorfon needs water to dissolve and sink into soil. Dry granules on grass blades do nothing. Run sprinklers for 20-30 minutes after treatment. Rain works if it comes within 30 minutes.

Some states limit Dylox use on school grounds and playgrounds. Check your local rules before treating these spots. The chemistry type raises worries about kids touching it. Chlorantraniliprole has no such limits. It’s safer for mammals. You can use it on all home and business lawns.

The two products have different reuse rules. One spring dose of chlorantraniliprole protects your lawn all season. Dylox needs a new dose every 3-4 weeks during bad bug attacks. Think about cost—three Dylox treatments run more than one chlorantraniliprole dose for the same lawn size.

Expert Recommendations

Lawn care pros pick chlorantraniliprole for 9 out of 10 grub prevention programs. The long protection window cuts labor costs. You make fewer repeat visits. University extension agents report solid results: 74% of homeowners who use spring application timing stop all grub damage that season.

Turf managers track how well customers follow their advice. Customers who rate products 9-10 stars use them 55-60% of the time. Those giving 7-8 ratings follow through at just 44%. Poor performers (0-6 ratings) see just 18% follow-through. This data shows chlorantraniliprole products earn higher scores. GrubEx and Acelepryn users stick with the treatment plan better than Dylox buyers.

Golf course superintendents prefer chlorantraniliprole for fairways and roughs. One spring treatment protects 18 holes through October. They save $1,200-1,800 per season compared to multiple Dylox applications. The chemical won’t harm bentgrass or fine fescue varieties common on greens.

Pest control operators grab Dylox during emergency calls. Brown patches spreading fast need trichlorfon’s 24-72 hour kill speed. They charge $120-180 for reactive treatments. Prevention customers pay $80-100 for one chlorantraniliprole service instead.

Soil testing comes first, say agronomists. Test before using either product. pH above 7.5 cuts Dylox effectiveness by 25-30%. Sandy soils drain fast and waste trichlorfon. Clay and loam hold chlorantraniliprole better. The compound stays active longer in neutral pH (6.5-7.0) conditions.

Severe two-generation infestations need both products. Use Dylox in September for active grubs. Follow with chlorantraniliprole in May to stop next year’s hatch. This one-two approach costs more but stops recurring damage cycles.

Both chlorantraniliprole and Dylox protect your lawn from grub damage. Each one works differently.

Chlorantraniliprole works best as prevention. Apply it in late spring or summer. One treatment protects your lawn all season. It works through your grass roots and stays active for months. This makes it a smart choice if you plan ahead.

Dylox handles active grub problems. Grubs already attacking your lawn? This product kills them in 24-48 hours. Keep it ready for emergencies.

Your best strategy? Don’t wait for brown patches to show up. Use a chlorantraniliprole product as your first defense. Keep Dylox as backup. This saves you money and effort. Plus, you protect your lawn before damage happens.

Want to protect your lawn against grubs? Mark late May on your calendar. Get a quality chlorantraniliprole product. Your lawn will look great come fall.