Show F How I to o Get e Rid 1 o of f All Weevils Heavy Damage Wrought to Beans al and d Peas by Man Many Y Little Insects f r rr Prepared fed red pj by the United States StAte Department of ot As Agriculture The annual board hill 1111 of the time bean boan and pea weevils readies beaches a 11 total of many millions I Furthermore on account account ac nc- count of ot heavy damages wrought ht h by these Insects farmers have sharply reduced the acreage devoted to beans heans and pens peas In numerous cases abandoning abandon abandon- Jn ing the commercial production of ot those crops for others Contrary to n a widely current belief be her lief lIet bean berm and pea pen weevils do not develop develop develop de de- de- de spontaneously from the germ erm of the seed As the bean hean and pea pen pods I grow the mother weevil wee which files flics from the storage hous house where Infested Infested Infested In In- seed are kept to the growing crop In the lie field In lays s 's eggs either on the outside of the pods or within them From these eggs which appear as mere white specks there hatch white grubs that bore through the pod Into the soft sort developing beans S or peas The holes through which the grubs rubs enter the seeds are too small to be seen without a microscope Thus ninny many seeds that appear outwardly sound In reality harbor weevil grubs Their presence Is usually not discovered until until until un un- I til as adult weevils they burrow their I way to freedom leavIn leaving a hole about sixteenth one of an Inch In diameter Leguminous Crops Injured Injury to leguminous crops is caused by a n number of Insects Those commonly commonly commonly com com- found In supplies of beans peas cowpeas or lentils In this country country country coun coun- try Include the pea pen weevil the common common common com com- mon bean weevil the spotted four-spotted bean henn weevil and the lentil weevil With the exception of the pea weevil and the lentil weevil the weevils attacking attacking attacking at at- tacking beans and cow peas produce generation after generation In dried seeds In storage as well as on the growing plants Since triP the pea weevil which u n attacks 1 peas pens cannot breed In dried seeds peas pens Intended for planting may may be held over for one year In tight paper bags so that the weevils that emerge cannot cannot can cnn not live but will die cle before the second spring pring If weevils are found In pens peas cowpeas cowpeas cowpeas cow- cow peas or beans benns they can be he rea readily killed by fumigation with carbon di- di Water tight barrels make convenient receptacles In which to store and fumigate small quantities of these crops Fill the barrels to within a few Inches of the top with seeds pour one cup or more or of carbon carbon carbon car car- bon on the seeds eds In each ench barrel and then cover with a double thickness of heavy wrapping paper tied tight around the top or with several several several sev sev- eral sacks weighted down with boards A A wooden cover Is also useful In keepIn keepIng keeping keep- keep In Ing In the fumes times The carbon when poured over O the seeds quickly vaporizes and the gas being heavier than air sinks to the bottom of the container filling tilling all the air all spaces spaceR Fumigation requires from 24 to 18 hours bours It Is better to use Joo too much carbon carion than not enough Welt elt dried see seeds ls properly fumigated with carbon are not damaged damaged dam dam- aged ged either as food or as ns seed to be planted Temperature for A favorable temperature f for Tr r fumigating fumigating fumigating fumi fumi- gating with this chemical Is 75 degrees Fahrenheit or higher In fumigating with carbon care must be betaken betaken betaken taken to mal malts make sure that there Is no fire In the room or nearby even lI lighted d cigars arB lighted lanterns or the time spark from an nn electric fixture as the time gas gasIs gasis gasis is explosive and Inflammable when comIn coming Into contact with fire In any form Carbon Is purchased as ns a liquid In Iron drums or 01 tin cans and weighs about 10 pounds per pel gallon When hen fumigating large quantities ties of seeds use me om 8 to 20 pounds of carbon per 1000 cubic cubic- feet of space to be he fumigated the amount varying in with the tightness of the container and the tIle temperature |