ENTOMOLOGICAL SOCIETY OF ONTARIO. 



35 



This mixture was applied with a whitewash brush, thoroughly covering the entire trunk 

 of the tree and a few inches up on the limbs. Mr. Fisher reports that at the end of the 

 season he is quite satisfied with the results of the treatment. It would appear from 

 what I have just said that two applications of this mixture, the first one being made as 

 soon as the beetles become active, sometimes as early as March, and another six weeks 

 later, would provide us with an effective remedy for this little pest, which for some years 

 has done considerable harm in our Canadian peach orchards. 



Black Peach Aphis (Apkis per sicca niger). — The only new fruit pest of any importance 

 which has appeared in the province during the past season is the Black Peach Aphis, of 

 which specimens have been sent in from two orchards at Leamington, in Essex couaty. 

 The insect has undoubtedly been imported from the United States on young nursery 

 stock. There are two forms of this insect, one attacking the twigs, the other, more in- 

 jurious and much more difficult to treat, occurring on the roots. Prof. John B, Smith, of 

 New Brunswick, N. J., who has studied this Aphis a great deal, states that the form on 

 the twigs is easily controlled with kerosene emulsion ; and the underground form he has 

 successfully treated with heavy top dressings of kainit He recommends for light soils 

 in New Jersey about ten pounds per tree, covering the probable extent of the root system. 

 This is for a bearing tree from four to six inches in diameter, and the time for applying 

 the kainit is in the spring, when the trees are leafing out. Prof. Smith states that " the 

 kainit has proved successful in our orchards, wherever used." Another method of treat- 

 ment which has been recommended is to dig in tobacco waste around the roots. 



Fig. 1.5. 



Fig. 16 



Fig. i: 



Fig. 15, male ; 16, female ; 17, injured canes. 



Mr. Woolverton, the energetic Secretary of our sister society, the Fruit Growers' 

 Association of Ontario, states that the Pear L?af Blister Mite ( Phi/toptus pyri) is rapidly 

 gaining ground in the Niagara district, the corky dark-colored galls being conspicuous on 

 the foliage of most pear trees. On account of the diminutive size of the mite which causes 

 these blister-like galls and from the fact that it works inside them out of sight, it is seldom 

 recognized as the cau5e of the injury, many people attributing the origin of the galls to 



