Tip
Top Bio-Control Technical Bulletin
Coleomegilla
maculata
Pink spotted
Lady Beetle
Target
Pests:
Aphids, Caterpillar pests and
mites. Controls green peach, pea,
cabbage, potato and melon aphids.
Attacks the eggs of European corn
borer, asparagus beetle, corn earworm,
fall webworm, imported cabbage worm,
Colorado potato beetle and Mexican
bean beetle.
Description:
The larvae are alligator like and are wingless and have a black segmented body
with almost yellow bands. They have 3 prominent sets of legs. The larvae
will grow to about 8-9 mm in length. Remember larvae can not fly and will
stay where they are placed within crawling distance.
Adults have a large oval body and are orange/yellow and have symmetrical black
spots. The adults will be about 5-6 mm long. Eggs normally laid in clusters
on the underside of leaves, are spindle shaped, yellow or orange in color and
are about 1mm long.
The
female lays 200-1000 eggs over
her lifetime. Once mating the female
will lay egg masses in areas with
large numbers of prey. When the
larvae hatch out they immediately
search and find prey to feed upon.
Product
information:
No shipments allowed to Oregon. There are two subspecies available: lengi,
which is found throughout the US and the fuscilabris, found in Florida, and
is the only specie able to ship into Florida. Coleomegilla maculata is a general
predator and feeds on thrips, spider mites, moth eggs, whiteflies and aphids.
Larvae and adults are shipped in units of 250 with food. This predator also
eats pollen as well as pests, planting flowers in the vicinity that produce
pollen will ensure a longer cycle.
Release
Rates:
Introduce the beneficial as soon as possible after receipt. Apply predator
directly to plants to be treated by hand.
One
predator per sq. ft. is recommended.
Lifespan:
Adult beetles live for about 5 months. The larvae will develop and eat prey
until full size about 14 days. After the larvae reaches it full development
it will attach its abdomen to a leaf surface and begin to pupate and the
adult will emerge in about 3-12 days depending on weather, warmer weather
means sooner adults. The adult beetle will start laying eggs in 7 days.
The female will lay about 10-20 eggs per day.
Strategic
Considerations:
Avoid the use of systemic insecticides
or pesticides with long residual
action.