Show bombing planes used in war on mosquitos experiment tried in panama proves effective washington bombing planes have been used with such success la in combating malarial mosquito in itie lie panama canal zone the office of 0 the chief of the air corps lias has been advised that similar tactics may be employed oy airplanes over insect infected sections of the united states the apparatus Is 18 so simple that it can be placed in a large plane of the bombing type within 15 minutes the poisonous mixture Is 13 also simple and one part by weight of carls green being mixed with four parts by weight of dust obtained from local clay the results showed clearly that the mixture destroyed the malarial carrier in the larvae stage but failed to kill other varieties of mosquitos which Nl lich although yot pot dangerous constitute a pest oil mixture is believed believe to be effective against these honma barial insects A bombing plane was vas selected as tho the most suitable type of aircraft with which to conduct the mosquito dusting operations because or of its greater weight carrying ability and for the further reason that it permitted the placing of the dusting apparatus without modifying the structure of the plane in any way the mosquito breeding area was first dusted on july 23 28 and thereafter at weekly intervals on each trip two flights were made with approximately COO pounds of the dusting mixture the time required for each flight w was as from fifteen to twenty minutes the actual dusting operations consuming from ten to twelve minutes th ohp altitude of the bomber was from 20 to 40 feet the Tle report stated that it Is necessary essary to repeat the dusting at weekly intervals to destroy all larvae before they can develop into the mosquito and that from seven to ten dustings hustings du stings in the malaria season will kill practically nil all the larvae of the malaria variety |