Heavy Duty, 7 gram formula.
EXTENDED RELEASE technology.
Lasts 90–120 days
Fast delivery!
Save up to 10%: No Sales Tax Outside Texas
If you need to treat now, please order SPLAT Verbenone — same active ingredient and effect, just a different application method.
Pouches cannot ship to California.
2,510+ pouches, a quantity not listed, or treating acreage?
Call 512-282-3003 for shipping details.
Fast delivery · No sales tax outside Texas
Need the Extension Hammer?
The Extension Hammer lets you place a pouch higher up the tree to take advantage of every foot of protection the pouch can offer. One swing, and it is done — easier than ladders, stools, or staple guns.
It is built from 3/4″ pipe parts you can source at your local hardware store. The only part that is not available commercially is the milled plug, which holds the nail and pouch. Buy the whole head assembled and just add the handle, or buy the milled plug and build the rest yourself. A 1″ galvanized roofing nail works fine.
When should I put it out? Timing calculator
Free timing calculator
When should I put it out?
Mountain pine beetles fly when the weather warms. Answer a few questions about your state, elevation, slope and spring — we’ll estimate your best pouch application window and how long protection lasts.
Estimate only. Flight windows shift every year. We’re awaiting current state agency and USDA Forest Service guidance to refine this estimate; confirm local timing before applying.
ISCA Heavy Duty Pouches
7 grams · Extended Release · 90–120 days
One pouch per tree.
Verbenone pouches are an easy-to-apply pine beetle repellent that releases a synthetic beetle pheromone to repel Mountain Pine Beetles and, to a lesser extent, other bark beetles such as Southern and Western pine beetles.
Insects do not develop resistance to verbenone as they do with conventional pesticides, and the pouches contain no poisonous substances — no threat to beneficial insects, humans, pets, wildlife or the environment.
Common questions
Where can I buy verbenone?
Pouches ship to Alaska, Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, North Dakota, South Dakota, Texas, Oregon, Utah, Washington, and Wyoming. We cannot ship pouches to California, but SPLAT Verbenone ships there.
How do I apply it?
Hang one pouch per tree on the shaded north side, 6–12 ft up. For SPLAT, apply four dollops of about 17.5 g evenly around the trunk at 7–10 ft.
When should I apply it?
Apply just before the beetles fly, when daytime temperatures reach 55–65°F: around May 1 below 5,000 ft, and June 1–July 4 above 8,000 ft.
How much do I need?
One pouch protects one tree, or use at least 20 pouches per acre for stands. One SPLAT tube treats 10 trees.
Do I have to clean up infested trees first?
Yes. Remove infested and green-attack trees before the beetles emerge, then burn or chip the wood. Verbenone works best as part of a multi-year program, not a standalone cure.
Quantity discounts
Every bracket below is applied automatically — the price per pouch drops as the order grows. The table highlights the bracket your current selection falls into.
| Pouches | Your price | MSRP | You save |
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