THE MONTHLY BULLETIN. 159 



trees. Suoli netion would eliminate many complications in the com- 

 mercial handling- of fruit and in quarantine matters which might 

 eventually arise. 

 In the case of a general infestation we would also recommend : 



1. Control. 



(a) As in the case of any insect pest we recommend control 

 measures only when the damage threatened or done becomes a 

 commercial consideration and that whenever possible the meas- 

 ures adopted be coordinated with the control of other pests as 

 based upon the experience of investigators and' orehardists. 



(6) Realizing the value of natural agencies in the control of 

 this pest we further urge the use of such parasitic and predaceous 

 insects as are available. 



2. Quarantine. 



The matter of quarantine must of necessity be determined by 

 the nature of the infestation. Believing that all practical means 

 should be employed to confine the meal}'^ bug to the determined 

 infested areas, we suggest that the local fruit associations and 

 county horticultural authorities take all possible precautions to 

 prevent the artificial carrying of the pest to groves outside such 

 infested areas. 



(Signed) R. S. Vaile. 

 E. 0. EssiG. 



The convention expresses its gratification that the true citrus mealy 

 bug, Pscitdococcus citri, has not been found in the Ontario and Upland 

 districts but that the insect that caused the alarm is a common less 

 harmful species, Pseudococcus haheri, not hitherto known to be injurious 

 to citrus fruits. 



The convention requests the Commissioner of Horticulture to print a 

 summary of the papers and discussions, including other useful informa- 

 tion, in order that the information given in the convention may be widely 

 disseminated. 



In view of the imperfect knowledge of the life history and habits of 

 the different species of mealy bugs and their relation to methods of 

 control, the convention would urge that a comprehensive investigation 

 of the different species of mealy bugs be made by the citru.s experiment 

 station; that a definite project looking towards an investigation of 

 further methods of control be made ; and that a survey of the work 

 accomplished in combatting this pest be made and the results given to 

 the public. 



The convention expresses its appreciation of the work of the Com- 

 mission of Horticulture, looking toward the introduction of parasites 

 that assist in the subjection of the injurious citrus insects ; it endorses 

 this work and expresses the hope that the Commission of Horticulture 

 may be enabled to extend the investigation to a critical study of the 

 parasites in citrus producing countries that have not already been 

 thoroughly searched for parasites, the investigation along this line to be 

 conductecl in close co-operation with the work of the citriLs experiment 

 station and of the countv horticultural commissioners. 



