Bumble Bees in Crawl Space

Old 06-29-05, 05:58 PM
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Question Bumble Bees in Crawl Space

Bumble bee nest (very active) 5'-6' inside my crawl space entry. Must get in to service well pump and equipment.

Not possible to get around the nest.

The only solutions I have thought of so far are 1) Sit by the entry and kill them one by one with spray or badminton racquet, and 2) Burn the place down.

Would appreciate some sound advice on this stinging problem.

Old 06-30-05, 01:14 PM
Lee Lamb
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Get a box of Raid fumigators, blue box about the size of a quart carton of milk. Read and follow all instructions on the box. Just after dark put two of them in the crawlspace and go shopping or out to dinner for three hours - this stuff is lethal. When you return open all windows in the house and air it out. Air out the crawlspace with a fan. Everything - bugs, birds, animals, fish, etc... will be dead. The aerosol fumigators do not work (as well) as these. Expect to pay about $8.00 (US) for a box of three. Good luck!
Old 07-01-05, 02:37 PM
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Activity will die out with the first frosts and can then nests can be safely removed. Bumble bee nests are about the size of one-half grapefruit. The queen, workers, and independent drones dies at time of frost. Only the new queen will remain with the eggs that will be next year's colony. Bumble bees are very beneficial for cross pollination, but if they are a problem, remove nests at frost. If a more immediate remedy is needed, there are aerosol jet-sprays for bees and wasps. Treat nests at dark. Wear protective clothing. If you are sensitive to bee stings, do not undertake this project yourself.

A quick knockdown insecticide is preferred because bumble bees may fly out to defend the colony. Do not hold a flashlight when you apply insecticide because bees are attracted to light. Direct insecticide toward nest entrance. Followup next day to see if there is activity and spray again if necessary. Then you can knock nests down and dispose of them. Seal crawl space entry to keep out all insect and rodent pests.

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