Carpenter bees get their name from drilling through wood
and nesting in the hole. This bee creates a near-perfect 1/2
inch diameter hole.
- The female carpenter bee will bore a channel 6 inches or
Bees' eggs are laid in these chambers, packed with and seperated by
pollen gathered by the carpenter bee.
- The male spends most of his time flying around the nest playing guard.
female can sting. Simply killing the male will not solve your problem.
Half-inch, round holes appear, and piles of sawdust are found underneath.
Along with the coarse sawdust found underneath the entrance, there are
usually dirty-yellow streaks of fecal matter staining the wood below the hole. If
you are near a nest, you will likely be buzzed by the male carpenter bee on
guard. He is loud and aggressive, but has no stinger. The female can sting but she is normally very docile. A single
pair (male and female) occupies each nest. It is not uncommon to find several pair
of carpenter bees nesting in one structure. They frequently nest near each other and
often in the same area year after year, causing extensive damage. You may find old
holes near newer ones. Sometimes the female will renovate an old nest gallery and
Skip down to carpenter bee elimination products. **
To control carpenter bees, do not concentrate on the adults.
You should treat the nest with a product which will have a long
residual killing time; this kills adults and their young, as the young
hatch. If you spray liquid residuals in their hole, you may kill the
female bee. The eggs are protected, however, and six to twelve months later the larva will
emerge. Since liquids are absorbed by porous wood, they will be gone when the larva hatch.
This means the larva have a strong chance of survival. To insure complete control, use a
dust called Drione. It has a desiccant action and can remain
active for several months in the nest galleries. When the larva emerge they will
be killed by the Drione Dust.
Apply the Drione with a Crusader
Duster to the nest openings and deep inside the cavities drilled by the carpenter
bees. This will kill any emerging carpenter bees and larva in the future.
You should also treat any wood surface that you wish to protect with D-Fense
SC, Tempo WP or with Cyper
WP. Wettable powders (Tempo WP
and Cyper WP) are used extensively by pest
control operators throughout the United States for most of their monthly, quarterly or
once-a-year pest control accounts.
is a very economical, odorless insecticide with many uses in and around
These products are active against many pests
including carpenter bees.
If your home has cedar siding or is a log home:
Wettable powder formulations will leave a visible residue on dark surfaces which is
undesirable for some people. Cedar and log homes may also be bombarded with
carpenter bees which requires special attention. Most of our customers who have
these types of homes prefer to use D-Fense
SC, Demon EC or Cynoff EC for their carpenter bee
Carpenter Bee Kit #3
This Carpenter Bee Kit contains the necessary products for those
who have heavy infestations (of carpenter bees) on cedar or log homes.
Each kit contains 1 pint Demon EC, 1 pound Drione Dust, a Crusader Duster
and a Dial-A-Mix hose end sprayer.
These products are also much cheaper to use when treating larger
areas or where high volumes of insecticide spray is required. When treating these
larger areas (on log or cedar homes) use a hose-end sprayer for application. This
allows you to treat exterior walls with greater ease and reach higher areas without having
to use a step ladder. For severe infestations of carpenter bees on cedar and log,
you will need to spray twice (2 weeks apart) the first month. After your spray has
been allowed to dry, apply your Drione Dust to all possible carpenter bee holes or entry
points. Repeat spray and dust as necessary.
Choose the product that best suits your overall needs for pest control in and around your
home or business. Tempo WP and Cyper
WP are all wettable powders (powder
concentrates that are mixed with water for spraying for various insect pests) which are
odorless and give at least 90 day residual action indoors. Cynoff EC and Demon
EC are liquid concentrates which give about 30 days residual and no visible
residue. Mix 1/2 to 1 ounce of these liquid concentrates per gallon of
water. Mix Cyper
WP or Tempo WP at the rate of 2 scoops per gallon when
controlling carpenter bee infestations; spray on any wood surface you wish to protect from
carpenter bees or where they may want to bore holes and create galleries. One gallon can
treat up to 1000 sq./ft. This application rate works well when treating cedar homes and
log cabins. These structures are particularly subject to carpenter bees. If you tend to
have recurring carpenter bee problems every Spring or Fall, may have to do more spraying.
This will deter future infestations of many pests, including carpenter bees.
Apply your wettable powder insecticides once every 4 weeks in the spring when they are
most active. Once a month applications throughout the summer will probably provide
protection but do not forget your fall application. Although rain and humidity will break
down the chemical, it is active enough so that even trace amounts will help chase
carpenter bees, wasps and hornets away.
The most economical way to
spray is with a garden pump sprayer. Our Chapin Sprayer is capable of reaching up to 30
feet high. Product comes out slowly and it may take a couple of gallons to treat your
If you have a lot a area to treat
and are not concerned about wasting some product, use a hose end sprayer with a liquid
SC, Demon EC, Cynoff EC,
etc.) This hose-end type of sprayer is used by filling it with the Cypermethrin product,
hooking it to your garden hose and then depressing the trigger. This releases the water
from your hose which in turn siphons out the required amount of Cypermethrin to provide
the correct solution. This type of application is much easier to use than a pump sprayer.
Many times the water pressure is able to spray higher than the pump sprayer which could
prove important if trying to reach high places on your home. Expect a small amount of
waste when using the hose end sprayer. On a special note, do not use a "Miracle
Gro" or other "no-clog" hose end sprayer which lets water mix with the
concentrate. These sprayers are designed for water soluble fertilizer and will not work
for this application. When Spring has sprung, insects will rebound from a long and cold
winter. The carpenter bee is one such pest. Treat their nests directly with Drione to insure long term control.
Professional Pest Control Products
6920 Pine Forest Road
Pensacola, Florida 32526
Call us, between 8:30 &
4:30 weekdays, Central Time
In the United States: 1-800-434-4555