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by TERRY KRAMER
I LAY FLAT ON MY BELLY PULLING
UP WEEDS along a brick walkway in front of the house, I found
a lively colony of sowbugs, hundreds of them teeming with scampering
feet and twitching feelers. With the sun warming my back, I remembered
childhood days when my siblings and I would spend a summer afternoon
looking for roly-polies, the steely blue sowbugs you could roll
up into a ball. We would poke along cracks where the sidewalk
met the grass and find a herd of sowbugs. If they rolled into
balls when tampered with, they were fair game for play. If they
simply folded in half with a crunch, the unfortunate beasts were
tossed aside.
Sowbugs and the roly-poly pillbugs
are sometimes called wood lice. These irritating pests do little
harm in the garden. One thing that sets these creatures apart
from other garden pests is that they are neither bugs nor insects.
They are crustaceans, cousins of crabs, lobsters and crawdads.
The only crustaceans that have adapted to living an entire life
on land, these critters breathe through gills and are dependent
on a moist, humid environment. That's why one finds them hiding
beneath flower pots, along the foundation of a house and in piles
of wood. But just because sowbugs are related to lobsters does
not mean they are tasty. One noted British isopodologist, Paul
Harding, said they taste of strong urine.
Sowbugs may not taste good to
the adventurous who dare sample them, but these industrious creatures
do like tasty garden waste. While sowbugs will nibble on young
seedlings and roots, they prefer decayed matter, moist wood,
moist decaying vegetation, fallen fruit, manure, carrion, other
sowbugs and their own feces. Their coprophagous habits are due
in part for a need to extract extra nutrients from their food
and to recapture copper, a much-needed metal that is used to
carry oxygen in their blood. For the most part sowbugs are beneficials
that break down organic matter much like earthworms. These harmless
scavengers do not bite, sting, transmit disease nor do they bother
clothing or food.
Sowbugs and pillbugs are quite
similar. The differences are the sowbug cannot roll into a ball
when disturbed and it has two wiggly tail-like appendages poking
out of its rear end. These can be used to absorb moisture if
necessary. Sowbugs are flat and grey, while steely blue pillbugs
are more armadillo-like with their convex bodies. (Had these
facts of life been explained to 8-year-olds looking for pillbugs,
a lot of innocent sowbugs would have been spared an untimely
death.) Both average 1/4 to 1/2-inch in length with bodies that
consist of a head with a pair of antennae and a body covered
with a hard shell that is made up of a series of segmented plates.
They have eyes and seven pairs of legs.
Upon disturbing a colony of
sowbugs an observant gardener may notice they can come in several
different colors like tan, pale orange, light gray and even purple
or lavender. That is due to molting, but they soon turn dark
as their new shell hardens.
While molting is vital in the
growing process of all crustaceans, with sowbugs it is also plays
an important role in mating. They molt from back to front. When
a female sheds and reveals her oviducts a waiting male seizes
the opportunity.
Because our winters are mild,
mating occurs all year round. The female carries her eggs in
a special brood pouch on the underside of her body. A single
female can produce up to 200 offspring up to three times a year.
Eggs hatch within three to seven weeks after mating but the young
remain in the pouch for another six weeks. Upon leaving the pouch
the young, smaller and lighter in color than adults with fewer
legs, begin feeding and maturing. Sowbugs are full grown and
ready to mate in a year. They can live up to three years under
ideal conditions.
Due to their sheer multitude
sow bugs can become a bit pesky in the garden. Since sowbugs
breathe through gills, they must have moisture to survive. Eliminating
dark moist places will cure a sowbug problem. Containerized plants
sitting on concrete or wood create ideal conditions for sowbugs.
They will crawl up into the drainage holes and feed on roots
and decaying material in the potting soil.
The best way to solve the problem
is to place wooden spacers made of 1 by 2's under pots to create
an air space. This keeps the area between pot and ground surface
dry and lighted. (Sow bugs do not like light). To prevent sowbugs
from congregating around foundations, keep weeds and organic
mulches 6 to 8 inches away. Finding colonies of sowbugs indoors,
especially in bathroom and kitchen areas, means they are feeding
on wet decaying material near by. Could be a water leak somewhere.
PINCH AND PRUNE Tip-pinching new spring growth is
the easiest way to control growth on many perennials, shrubs
and even young trees. Remove spent blossoms from camellias and
rhododendrons. Prune after bloom is the rule of thumb for ornamental
flowering trees and shrubs like crabapple, plum, cherry, quince,
forsythia, lilac, saucer and star magnolia.
PATROL Trap or bait for hungry slugs and
snails emerging from winter hibernation. Look for aphids on the
buds of roses. Greenhouse gardeners should be on alert for both
aphids and whitefly. Spray with neem at first sign of infestation.
Trap earwigs and sowbugs by placing an old piece of lumber on
wet soil or grass. Check daily and dispose of the critters as
you wish. Inspect oak and fruit trees for leafrollers and caterpillars.
Spray with Bacillus thuringiensis, an excellent organic control,
at first sign.
PLANT PLANT PLANT
April is prime planting
time when just about anything, except tomatoes and peppers, can
go into the ground. Plant lettuce, mixed salad greens, broccoli,
cauliflower, spinach and herbs this month. Sow seeds of beets,
carrots, chard and peas. Start a herb garden. Plant geraniums,
perennials and warm season annuals like marigolds, snapdragons,
lobelia, dianthus, nicotiana. Wait until May to plant impatiens,
tomatoes, peppers, eggplant, corn and summer squash, however.
FEED `EM AND
REAP roses, lawn, perennials,
groundcovers, fruit trees and fall-planted shrubs and trees.
Japanese maples and clematis need feeding, too. Use a balanced
fertilizer mixed with a bit of iron for best results. Every four
weeks liquid feed flowers and vegetables growing in containers.
Feed rhododendrons as flowers buds swell. Feed the lawn.
DON'T WEED If you are planning to grow in new
ground, try smothering the area with a layer of compost mixed
with weed-free manure. Lay on top of this some newspaper and
then cover with composted chipper mulch.
GROOM Remove spent blooms on spring flowering
bulbs like daffodils and tulips. Do NOT cut back foliage, however.
Remaining leaves are necessary for rebuilding the bulbs for next
spring's flowers. Rake and reseed bare spots in the lawn. Clean
up any old flowers that have dropped from camellias and azaleas
to reduce chance of petal blight.
Comments? E-mail the Journal: ncjour@northcoast.com
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