Asian Ambrosia Beetle Trap

How to Make an Asian Ambrosia Beetle Trap

Instructions for Making and Using Asian Ambrosia Beetle (AAB) Trap

James V. Robinson, Professor/Extension Entomologist


Quart size clear Solo container with lid 1/
Ethyl rubbing alcohol 2/
Cotton rope wick - 7/32" diameter 3/
Pill bottle 4/

Building Instructions: Cut three holes in the Solo cup approximately 2 1/2" in diameter and approximately 2 1/2" from botton of cup (see diagram). Drill 1/4" hole in top of the pill bottle lid to receive the cotton wick. Cut a piece of cotton wick 4 1/2" long. Insert the wick into the hole in the top of the pill bottle with about 1" of wick sticking out of the top of the lid. Fill pill bottle with ethyl alcohol. Place cap with wick on the bottle. Fill the trap with about 2" of water. Place pill bottle in trap. Replace lid on trap.

Place the trap(s) in the area where beetles are expected to occur. The traps do not not have to be near trees or host plants. It is best to place the trap so that it can be in the shade part of the day. Remove, count and record the number of beetles caught each time it is checked. Check traps two times per week. Asian Ambrosia Beetles can be trapped in all months except December and January (maybe then, too).

AAB's are two-tone with a dark brown head and black abdomen, and are fat rather than narrow. If you have questions regarding the identity of what you catch, contact your county Extension agent.

As an option, mount the trap on a 4 ft survey stake or post. (Mount the top of the trap slightly above the top of the stake so the lid can be removed). If this option is not used, set the trap on an object about 1-2' off the ground.

Purpose: To determine if AAB are in the area. The data can be plotted to give graph of the occurrence of the insect throughout the year. AAB are most common in late winter and early spring with smaller peaks of activity in the summer with increasing activity in the fall.

This insect can kill small trees. It attacks a wide range of plants including oak, pecan, peach, pear, pistachio, plum, crape myrtle, hickory, redbud, mulberry and many others. It prefers trees that are 1-4" in diameter. Once the tree is attacked, it dies. Infested trees should be removed and destroyed by burning.

Susceptible trees that have not been attacked need to be protected with either dursban or lindane. Approximate spray dates are November, February and May.

1/ Stock # SC 32 Solo Cup Co., Urbana, IL (can be purchased from Brookshire's or Wal-Mart)

2/ Must be ethyl rubbing alcohol - purchased from K&B Drugstore or Eckerd's Drugstore

3/ Braided cotton clothesline - Wellington Prod # 10712 (does not have to be this brand - as long as it is cotton)

4/ Snap-on lid - holds 140 mls (approximately 4.5 oz)

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