WAR TO THE DEATH — Jgah/st Lisecl Pests 



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apparatus used for photographing drops of spray material in the study of contact in- 

 secticides. More than lOfiOO photomicrographs have been made 



1 RIBUTE collected by insect pests in New Hampshire alone is 

 estimated at about $1,000,000 a year. Against this insect enemy the 

 Station's entomology department is the headquarters for attack. It 

 studies the life history of pests under New Hampshire conditions, 

 and perfects the control measures. In such wise during the past 

 twenty-five years it has conducted detailed studies that throw valu- 

 able light on: 



x^pple maggot The European corn borer 



Black flies The stalk borer 



Root maggots The white pine weevil 



Termites Arsenical residues 



Meanwhile, more than local significance attaches to much of the 

 research work of the laboratory. Requests for information on the 

 New Hampshire investigations come from all over the civilized world. 



T'hese codling moth eggs- 

 were prevejitedjrom hatch- 

 ing by the appUcatioJi of 

 ovicides. This mode of at- 

 tack., which is being care- 

 fully studied by Neiv 

 Hampshire' s entomolo- 

 gists, may revolutionize 

 insect control measures 



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