top of page
IMG-3979.jpg

Rodent Snap and Crush Traps
Prepared by Jon Sprague

Snap and Crush Traps.jpg

Click to view original poster

Safety Concerns

  • Personal Protection Equipment

    • Nitrile gloves for trap checking.

    • Consider eye protection.

  • Safety

    • Always confirm trap is disarmed before manipulating catch or putting fingers inside hammer arc.

    • When setting, keep fingers outside of hammer arc.

    • Kamate’s often have plastic tabs to facilitate safe handling. Train with someone who has experience.

Click to See Full Sized Images

Screen Shot 2024-05-19 at 22.27.06.png

Because it’s going to eat you.

Modification and Maintenance

  • Maintenance

    • Check hammer tension when resetting or doing maintenance; make sure it’s strong enough to kill target species.

    • Avoid lubricants with strong odors

    • Some traps that appear rusty may still work fine.

    • Consider treating traps with wood parts in linseed oil.

    • Catch can sometimes be modified to provide lighter or more consistent trigger weights.

  • Non-Target Exclusionary devices

    • Wooden boxes or wire mesh mini-boxes (others?)

    • Trap set height can help avoid non-target.

Click to See Full Sized Images

Where to Set Up

  • Large-Scale Site Selection

    • 100meter X 50meter grid is NZ standard for large grids, but other spacing options may be appropriate depending on the situation.

    • Set traps in ways that facilitate efficient checking and resetting (trap lines that can be run in loops are often better than straight lines)

  • Within-site set Location

    • Install in appropriate boxes/non-target exclusionary devices where necessary to avoid non-target kills.

    • On trail or just off trail

    • Traps can be set on ground or in trees on angled trunks depending on your rodents and your habitat.

    • Make sure hammer arc can be free of obstruction (branches etc).

Click to See Full Sized Images

How to Set

  • Trap Set.

    • Find a flat location or angled tree limb.

    • If on a tree limb, set on upslope side.

    • Use paracord or equivalent to tie to tree limb if applicable.

    • If using non-target exclusion device, ensure that entrance is unobscured.

    • Bait trap before arming (except for Kamate which is baited and armed simultaneously)

    • Arm trap while keeping fingers outside hammer arc. (If you can’t find someonein your group who has set these traps, find of the forum organizers, and we’ll send someone over.)

    • Place trap while holding at sides or back.

    • Ensure hammer arc is unobstructed.

Click to See Full Sized Images

How to Check

  • Trap Checking Routine

    • Look for carcasses

    • Assess if trap is still armed

    • If armed, trigger trap with stick or other non-body part to make sure trap works and catch is light enough.

    • Assess exclusion device and any equipment retaining trap (e.g. cord holding to tree) if applicable and adjust as necessary.

    • Check trap for rodent remains, remove as necessary (wear latex gloves. Wire brush can be handy to remove remains.

    • Assess hammer tension; make sure it’s strong enough.

    • Reset using setting protocol.

Click to See Full Sized Images

Purchasing

Click to See Full Sized Images

Miscellaneous

Click to See Full Sized Images

  • Misc

    • Catches on traps can be set both too light and to heavy, and some traps can be modified for optimum sensitivity.

  • Bait considerations

    • Kamate trap require a bait that is structurally sound enough to support catch, but will be consumed by target. Coating hard, inedible objects with a palatable bait may not work.

    • Slugs and ants can be hard on victor trap bait. Ideas?

Miscellaneous
How to Set
Where to Set Up
Modification and Maintenance
Safety Concerns
How to Check
Purchasing
bottom of page