February, 'IGI JOURXAL OF ECONO.MIC ENTOMOLOGY 



Plate 3 



Inoculations 

 Checks 

 Numbered 



Inoculated tree with B. amylovorus after incubating in lioney for 11 and 42 

 hours and then gro\ra on 3 per cent neutral nutrient glucose agar. 

 931-942 Inoculated— 100 per cent infected 943-954 Checks— free 



