-6 - 



Uso & minjjnuiii of 50 traps j unless orchard block is very snail. Traps should 

 be covered -with a piece of roofing paper, basket cover, or board to prevent grass or 

 leaves from sprir^ing traps. To accurately detemine the results of a baiting pro- 

 gram, a trap line as illustrated inay be operated just prior to the baiting process 

 and repeated one v,'eek after completion, with the trap line run in the opposite dir- 

 ection* Place traps in locations as for baiting, at the drip line* 



Trapping, as described, is not expensive or unduly time-consuming and should 

 be tried by every orchardist* Small blocks are subject to re-invasion more quickly 

 tJian large ones and should be examined more frequently* Late fall mowing, after har- 

 vest, can be helpful especially if done before baiting. 



The folcaTing diagram indicates the method of moving to be used in the orchard 

 after harvest to assist in mouse controls 



C-l 



B- -mrri ^lTiiii^nnn^nmfmrrrmTr 

 B- Tmrlmirr mtinu^nniivffnrmrr 



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mnmrrnihniiii^in nNiiL 



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? 



A "^^ 



A => Hovred areas and normal equipment route of travel* 



B "= Not mowed, fest mouse trails located here. Application of bait in B 



areas immediately after movfing is advantageous, because mice will move 



from A to B after mowing, 

 C = \fhen possible, operate trail builder in this direction, 



—-Carl r, Henry, Asst, District Agent 

 U,S,Fish & i'ildlife Service 



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Is Complete Elimination of Apple riaggot A Practical Goal ? Of all the insects infest- 

 ing an apple orchard, none can compare with apple maggot when it comes to disrupting 

 an other\7ise good crop. Even a slight maggot infestation tends to make the buyer be- 

 ware and if appreciable infestation'is in evidence, marketing becoraes a serious pro- 

 blem because it is impossible to grade out, completely, all infested apples. But 

 there are examples cf apple crops in which less than a tenth of one percent (l apple 

 in 1000) shows evidence of this late suminer visitor* Apple maggot can be, and is 

 being, controlled. If a grower finds 1^ of the apples shcvdng scab infection at har- 

 vest tiiae he considers hivi^self fortunate to have so few scabby appJe s» l^ut if any, 

 at all, show maggot infestation, the percentage is too high. Practically complete 

 control is possible even in a difficult environment* Any grovrer with more than a 

 very sniall fraction of l^j of the apple crop sho\dng apple maggot should ask hiiaself 

 "■/.ihy?" and should study the control measures of the increasing number who have reduced 

 this pest to the vanishing point* 



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