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Mole Control

Bug Lady posted this on Oct 12, 2016

As sweet and cute as moles may seem in story books, they can
be the bane to your existence when they make their presence know by ruining
turf, crops and drainage systems. In this article we will learn a few
interesting mole facts and the treatment measures that are available to control

Wikipedia has a few interesting mole facts that you may not
have known:

A mole’s diet primarily consists of
earthworms and other small invertebrates found in the
soil and also a variety of nuts. Because their saliva contains a
toxin that can paralyze earthworms, moles are able to store their still
living prey for later consumption. They construct special underground
“larders” for just this purpose—researchers have discovered such
larders with over a thousand earthworms in them. Before eating earthworms,
moles pull them between their squeezed paws to force the collected earth and
dirt out of the worm’s gut.

Moles have been found to tolerate higher levels of carbon dioxide than other mammals. This is because
their blood has a special and unique sort of
hemoglobin protein found in their blood cells. Moles are able to re-use the oxygen it has inhaled when above ground and as a
result are able to survive in low-oxygen environments such as underground

Moles are ready and well suited to eat, live and work in
their underground hideaways, which is why often times you may not see them
until severe damage is done.

There are two common methods for controlling moles in your
lawn, Physical / mechanical control and chemical control.

Included in physical and mechanical control is:

  • Habitat modification, during which
    we treat the turf with insecticide to remove the moles primary food source,
    insects. This often fails because moles also eat earth worms which will not be
    effected by the professional insecticide.
  • Exclusion of moles by using a barrier fence
    can be effective, but the time and cost to install barrier fencing may not be a
    feasible option for homeowners or large businesses.  If this is a viable option for your
    situation, ½ inch mesh hardware cloth or sheet metal buried to a depth of 12 to
    18 inches is recommended.
  • Live trapping of moles using pit fall traps can
    be constructed of large coffee cans or other similar containers and buried in
    planting beds along frequently used surface runs.  The traps must be deep and steep-sided to
    prevent the mole from escaping once inside.
    But once you have trapped the mole, you had better know what to do with
    it. There are commercial lethal traps available to order from most pest control
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