Show Cooperative Control Seen Solution on Earwigs I I Neighborly cooperation of or property property prop prop- erty owners directing their efforts to the common purpose of getting rid lid of earwig infestations in infestations in- in will do j l I- I yi more to conquer conquer this garden pest r I Ithan iQ than insecticides flies and t a c chi h i n i d J I. I I That was the conclusion Monday Monday Monday Mon Mon- day of three men who have spent j 1 man many y h hours 0 u r s I days and weeks celts I studying the ear- ear Earwig wig problem which reached its I peak locally a year or two ago At that time a i fly ny that acted as asa asa asa a parasite fatal to the earwig was introduced I Signs of in some somei some somei i I parts of Utah gave ga rise use t to o confer confer- confer I between Dr George F F. Knowlton Logan professor of entomology en en- enI I Utah State Agricultural college and Joseph F F. Parrish I Salt Lake county agricultural agent They referred to research done by Theodore 0 O. O Tuft 1526 E E. Delta st st. in 1947 with para para- earwigs and flies Larvae from the flies' flies eggs deposited deposited deposited de de- de- de posited in the ground near earwigs earwig's earwigs earwig's earwigs earwig's ear ear- wigs wig's nest penetrate the earwigs earwig's I body then the maggots feed on body fluids of the earwig ear When mature in three to six weeks the maggot breaks through the body wall of the host causing fatal damage Experiments with flies and par par- earwigs have been conducted conducted conducted con con- ducted in Utah Dr Knowlton and Mr Tuft made the spot studies begun June 12 1917 in Salt Lal Lake e I City They distributed 2000 2009 earwigs earwigs ear ear- wigs car wigs that had been exposed to the parasites at entomology laboratories laboratories lab- lab oratories in Washington earwigs were planted plant plant- ed at eight different locations in Salt Lake City Mr Tuft after observing various phases of the I I I control work i including n c l Iud u d i n g the I hatching of flies concluded concluded in In part pait The big fly eny was able to survive the local climate At only one station however however how- how ever was the parasite sufficiently established to result in earwig conti con- con ti ol The fly failed for unknown reasons to become well established at some of the stations I |