effects of poison concentration to the common cricket presented by erin hill
Post on 01-Jan-2016
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Acheta domesticus
Adults are 3/4” long
3 dark bands on the head
Body is light yellow-brown
Omnivorous
Destroy silk, wool, paper, rubber
Classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Grylloptera (Orthoptera)
Family: Grillidae
Genus: Acheta
Species: Acheta domesticus
Photo courtesy of University of Florida
Photo courtesy of University of Nebraska
ovipositor malefemale
Pictures
Troublesome Pests?
More annoying for their chirping than for their destruction
BUT – representative of insects in general which include: Ants Bees/wasps Cockroaches
Small Sacrifices
Available at most pet stores (food)
Inexpensive
Easy to raise
Just as susceptible to pesticides and bug sprays as other insects
Materials
About 80 crickets
12oz. Jar cricket food(at right)
2 gallon holding tank
Small plastic cups for testing
Pesticides
Chemicals
Raid House & Garden
Hold can 12” away from surface
NOT used of edible crops
Active Ingredients: D-cis, trans allethrin 0.239% 3-phenoxylbenzyl d-cis and trans 2,2-
dimethyl-3-cyclopropanecarboxylate 0.096%
Chemicals (con’t)
Repel Sportsmen Formula
Hold can 6-8” from skin
Active Ingredient: N, N-diethyl-m-toluamide (DEET) and
other isomers 29%
Chemicals (con’t)
Ortho Hornet & Wasp Killer
Jet carries 6-8 feet
Cancelled 1987
Active Ingredient: Pyrethrins .10% - (carcinogenic) Piperonyl butoxide .20% N-octyl bicycloheptene
dicarboximide .33% (possible carcinogen)
Procedure
Capture single cricket in plastic cup
Cover cup with paper towel, leaving a hole for spray application
Deliver one quick spray to cup interior
Register amount of time from spray to cricket death
Procedure (con’t)
“Death” was accepted to be the time when the prone insect stopped twitching
Repeat for 10 crickets with each chemical
Place plastic cups/dead crickets in plastic bag for city disposal
Results
Foam Spray JetTest Time (s) Test Time (s) Test Time (s)Cricket 1 135 Cricket 1 29 Cricket 1 13Cricket 2 117 Cricket 2 16 Cricket 2 21Cricket 3 50 Cricket 3 16 Cricket 3 24Cricket 4 40 Cricket 4 12 Cricket 4 15Cricket 5 20 Cricket 5 22 Cricket 5 27Cricket 6 51 Cricket 6 21 Cricket 6 21Cricket 7 63 Cricket 7 10 Cricket 7 18Cricket 8 100 Cricket 8 15 Cricket 8 18Cricket 9 57 Cricket 9 13 Cricket 9 15Cricket 10 98 Cricket 10 40 Cricket 10 15Average 73.1 sec Average 19.4 sec Average 18.7sec
REPEL INSECT BLOCK ORTHO HORNET & WASPRAID HOUSE & GARDEN
Conclusions
Raid House & Garden Produced a thick, sticky foam that trapped the
crickets Crickets twitched for quite some time before
finally dying Death took almost 2 minutes in some cases
Conclusions (con’t)
Repel Sportsmen Formula Produced fine mist in whole cup Relatively short time to die, but lots of
struggling and twitching Dead were highly contorted and twisted
Conclusions (con’t)
Ortho Hornet & Wasp Killer Produced thin jet of chemical Almost instantaneous death with few
exceptions Crickets didn’t have time to twitch
In The End …
It was concluded that while the Ortho Hornet & Wasp Killer was the most harmful to humans and non-target organisms, it was definitely the most effective of the three chemicals tested
In close second was the Repel Sportsmen Formula though it was not meant for killing insects, only repelling them
Resources
“DEET”. Deet Website. 2003 http://www.deet.com.“ePestSupply.com”. PestSupply. 2003 http://www.epestsupply.com/crickets.htm.“PAN Pesticides Database”. Pesticide Action Network. 2003 http://www.pesticideinfo.org/index.html.“Urban Integrated Pest Management”. University of Arizona. 2003 http://ag.arizona.edu/urbanipm/insects/cricketmanagement2.html.
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