108 Larval ami Pupal Sfar/es of Biliio Johaniiis L. 



Spraying infected land \vith a solution of Chili saltpetre in early 

 spring, and harrowing in autumn or early spring after spreading quick- 

 lime on the field are recommended (25), while ploughing deeply and rolling 

 at the time of pupation, has also been found satisfactory (iB), contact 

 poisons being said to have very little effect. 



9. BIBLIOGRAPHY. 



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