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Costco

Praying Mantis Egg Case - $22.99

  • Last Updated:
  • Jun 12th, 2023 8:37 pm
Deal Guru
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Jul 5, 2001
10063 posts
12665 upvotes
Toronto

[Costco] Praying Mantis Egg Case - $22.99

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Product Details
An excellent general predator! Praying mantis consumes aphids, beetles, flies, mosquitos, moths, caterpillars and any insect they can catch. Praying mantis, an insect with an innate killer attitude, is a great garden predator. One egg case hatches many tiny babies that quickly disperse throughout your garden. Your egg case contains approximately 40 to 400 eggs.

Mating occurs again in early fall and more egg cases will be laid that will hatch the following summer. The egg case is laid as a foam that hardens into a spongy almost indestructible mass, usually laid attached to a shrub, weed, grass, etc., a few feet off the ground. The egg mass survives freezing, thawing, rain and all the elements to hatch in the early summer to start the cycle again.

Features:
Hatching will occur by June
Egg case contains 40 to 400 young mantis
Most often green but sometimes brown
Very territorial, will create a home where hatched
Feeds on anything they can catch
Late summer mating season

How to apply:
Place egg case outside in the spring attaching the egg case using the included mesh bag in a plant, shrub or tree 1 to 1.5 m (3 to 5 ft.) above ground, or to observe, place in sealable white paper bag and place inside in south facing window checking daily. Tiny mantis will hatch in 1 to 8 weeks and all eggs will hatch within 1 to 2 hours, leaving the egg case visibly unchanged. Release tiny mantis immediately outside onto plants after the hatching occurs. They will quickly disperse throughout your yard to mature and lay eggs, continuing your population next season.

How much do I need?
One egg case covers approximately 90 sq. m (1000 sq. ft.)

Specifications:
Egg case dimensions (dia.): 2.54 cm (1 in.)

2022 thread: https://forums.redflagdeals.com/costco- ... 9-2529956/
2021 thread: https://forums.redflagdeals.com/costco- ... y-2455004/
2020 thread: https://forums.redflagdeals.com/costco- ... 9-2378918/
Last edited by 9394 on Apr 1st, 2023 7:27 pm, edited 2 times in total.
109 replies
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Feb 25, 2007
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Here we go again.... Need a photoshoppped image for this one.
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Aug 15, 2015
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Exactly how does one find out what religious denomination praying mantises one is acquiring ? So I can prepare the proper place of worship for them of course..Face With Rolling Eyes
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Nov 23, 2004
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This is the one post I look forward to on RFD every year around this time.
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This is how it ends...
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Oct 4, 2019
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Hey, thanks for the reminder. I grew these guys last year based on an RFD post. It was an interesting adventure and a fun learning experience. I got to learn about the kind of food (besides each other) they ate, watch them explore and escape their exclosure (had quite the jump scare when I saw one walk across my computer monitor), shed and grow, even fight. I grew them for my aunt and mum's gardens (where I heard they found their own pods at the end of the season). I kept one for myself and got him a terrarium for himself.


I attached a few pics from where they were born (I hatched them too soon, amateur's mistake) into a 3L jar, then moved into a clear bankers box, then into individual mason jars (cheese cloth lids), then outside.
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Jul 15, 2006
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Yes !!!! Love this thread every year in all its glory!!!!!
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Aug 30, 2009
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Do they catch/eat stink bugs?
Deal Addict
Jul 22, 2015
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Toronto, ON
stangri wrote: Do they catch/eat stink bugs?
Supposedly. They also chew on Ticks.
I ended up getting a couple of Sacks 2 years ago. Costco had them rebranded and shipped from a local supplier.

The one Egg sack didn't Hatch and the other only had a few mantis appeared for about a week..never saw them after that. I just assumed some bird ate em.
Deal Expert
Feb 24, 2018
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I love these things.

It's not spring until someone posts Prey Mantis eggs on RFD.

Half the pleasure comes from the expression on certain people's faces.

Thank you, OP.
I aim to be inclusive and considerate of others in my posts. If I fall short of that mark, feel free to let me know in good faith, and where appropriate, I'll edit my posts. Thank you.
Deal Guru
Sep 2, 2008
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Kintamanate wrote: Hey, thanks for the reminder. I grew these guys last year based on an RFD post. It was an interesting adventure and a fun learning experience. I got to learn about the kind of food (besides each other) they ate, watch them explore and escape their exclosure (had quite the jump scare when I saw one walk across my computer monitor), shed and grow, even fight. I grew them for my aunt and mum's gardens (where I heard they found their own pods at the end of the season). I kept one for myself and got him a terrarium for himself.


I attached a few pics from where they were born (I hatched them too soon, amateur's mistake) into a 3L jar, then moved into a clear bankers box, then into individual mason jars (cheese cloth lids), then outside.
Any tips on hatching them indoors? My daughter wants to do it. We don't have a garden but I can give them to my relatives.
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Jun 16, 2009
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Awww yeah, Mantis thread time Face With Tears Of Joy

One of these years I have to actually order this, I like Praying Mantises and just love the idea of unleashing my own brood upon the neighborhood.
c'mon get happy!
Sr. Member
Aug 25, 2008
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Etobicoke
slowtyper wrote: Any tips on hatching them indoors? My daughter wants to do it. We don't have a garden but I can give them to my relatives.
My daughter wants to do the same. Daddy might be into it as well. /following
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Feb 15, 2007
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I'm going to build an underground praying mantis fighting club with this.
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Oct 2, 2005
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The way they turn their head to look at you creeps me out.
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Incredible Creatures



I aim to be inclusive and considerate of others in my posts. If I fall short of that mark, feel free to let me know in good faith, and where appropriate, I'll edit my posts. Thank you.
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Jun 26, 2007
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My cat loves playing with Praying Mantises. They do not survive.
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Jul 8, 2009
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Not too early for manitoba ? Wife want them this year.
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