establishment of a predator-prey
relationship.
plant) is abundant one year, the
In this sense, when the prey (invasive
p
the next year. Once the prey is
redator (insect enemy) will follow suit
successfully reduced in abundance, the
predator will also decrease. This cycle is
ongoing, except in the rare cases where
the bioagents actually kill the weeds
and are then anticipated to perish
themselves.
death is the end result of one of our
One of these rare situations of plant
newer bioagents that attacks hound’s-
tongue, an invasive plant that produces
sticky, velcro-like seeds.
cruciger
The root-mining weevil,
, is oval-shaped and blackish
Mogulones
brown, 3.5-4.2 mm long. This weevil
was given its Latin ‘species’ name –
cruciger – due to the white cross that is
marked at the centre top of the wing
covers. Young beetles, or larvae feed
LISA SCOTT
Mogulones cruciger, with the
disctinctive cross shape on its
primarily within roots. Mature adult
back, attacks hound’s tongue
beetles heavily feed on the tops of
plants in the spring, at the time of egg
laying. As already mentioned, attack by
Growth is natural.
the beetles causes plant death, and
patch-level control has been reported
QUALITY IS INTENTIONAL.
within three years of a beetle release
[100 adults].
From orchard to vineyard, professional growers create a
of the most effective means of
Biological control is proving to be one
plentiful, premium crop with a discerning eye, a careful
controlling invasive plant infestations
that have reached significant
hand — and calcium. Nature’s Intent Calpril and Dolopril
proportions. Agents are self-
neutralize acidic soils and correct calcium and magnesium
propagating and self-dispersing, thus
def_iciencies. Our full line of all-natural, fast-acting products
supporting a long-term, cost-effective
has been proven safe and effective through extensive testing.
and environmentally friendly means of
control. In areas with sensitive habitats
t Increase crop yield, size, and shelf life.
and difficult access, biocontrol is even
t Boost quality, color, f_irmness, f_lavor and Brix.
more important and often the only
t Improve pH and long-term soil health.
practical choice.
South Okanagan-Similkameen
— Lisa Scott is coordinator of the
Get growing with Nature’s Intent. Call 877-571-3555 and
20
Invasive Plant Society.
visit www.naturesintent.com for a distributor near you.
British Columbia FRUIT GROWER • Winter 2009-10
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