UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 640 



Contribution from the Bureau of Entomology 

 L. O. HOWARD, Chief 



Washington, D. C. 



THE MEDITERRANEAN FRUIT FLY 



A. BACK, Entomologist, and C. E, PEMBERTON, Assistant 

 Entomologist, Mediterranean and Other 

 Fruit Fly Investigations 



CONTENTS 



Distribution Throughout the World . . 

 Establishment and Spread in Hawaii . . 

 How the Fruit Fly got into Hawaii . . . 

 Losses Incurred Through the Fruit Fly . 

 What the Mediterranean Fruit Fly is Like 

 Fruits, Nuts, and Vegetables Attacked . 

 Host Fruits of Commercial Value ... 

 Artificial Methods of Control not Satis- 

 factory Under Hawaiian Conditions 



Pago 

 2 



3 

 4 

 5 

 7 

 11 

 15 



Page 

 The Campaign Against the Fruit Fly In 



Hawaii 26 



Natural Control of the Fruit Fly . ... 37 

 Quarantine Measures to Prevent Intro- 

 duction 41 



Summary 42 



