Tip
Top Bio-Control Technical Bulletin
Tenodera
aridifloia sinensis
Praying Mantis
Target
Pest:
Praying mantids are strictly carnivorous and feed on almost any insect it can
overcome.
Description:
Mantids are territorial stalkers of insects. They will spend days waiting and
tracking their prey. The praying mantis moves its head to keep its prey
in sight. Its head stimulates special receptors that send out nerve impulses
that instantly adjust the distance and angle of the mantis quick strike.
It delivers a bite to the neck, killing the insect and then savors the
meal. That's how they work. The praying mantis is an awesome, showy creature
and can help to control garden insect pests the organic way. They are also
very interesting to have around.
Product
information:
Mantis egg cases are contained in either paper cups or pouches each egg case
will hatch out 50-200 mantids. When hatching, the young crawl from between
tiny flaps in the egg case and hang from silken threads about 2 inches below
the case. After drying out, the young will disperse. This happens within an
hour or two. It is very difficult to know if hatching has occurred, unless
the elusive and well camouflaged young are found.
Release
Rates:
Attach the egg cases to a twig or plant. 2 egg cases per 3,000 sq. ft. To monitor
hatching of the egg case place the egg cases in a paper bag and fold the top.
Place the bag in a warm spot windowsill etc. in direct sun light. Periodically
open the bag and check to see if hatching has occurred. If hatching has occurred
take out and release the young. Sometimes hatching can take up to eight weeks.
Strategic
Considerations:
Pesticides and even wetting agents and spreader-stickers may adversely affect
mantids survival. Broad spectrum and systemic insecticides are toxic to praying
mantids.