i68 The Canadian Horticulturist. 



tinue feeding for three years ; all three deposit their eggs during the summer 

 months, and for this reason they may easily be prevented from damaging 

 the trees, by washing the trunks with something which is distasteful to them. 

 Soft soap is excellent for this purpose, and the addition of carbolic acid, in the 

 manner recommended for the destruction of bark lice, is a still more effective 

 remedy. 



The Rose Beetle has lately invaded Ontario, and is rapidly 

 Vtty becoming a very serious pest, for it devours buds, blossoms, young 

 /^m fruit and leaves. Nor does it confine itself to the rose, but attacks 

 mWI^ also many of our choicer fruits as well. These beetles appear in 

 -< >■ swarms during the second week in June, and continue their mischie- 

 vous operations for about a month. They are exceedingly difficult 

 to deal with, but their attacks may be prevented to a large extent by dusting the 

 foliage with ashes, road dust or plaster Paris. It is also claimed that their depre- 

 dations may be entirely checked by spraying with pyrethrum water. One table- 

 spoonful of pure powder is used, to two gallons of water, and the liquid may be 

 applied with a force pump. In the use of the insect powder, it is well to remem- 

 ber that it kills by contact, and therefore must be applied in such a manner as to 

 reach every insect. 



The Bud Moth is a comparatively new insect in this pro- 

 vince, but during the last two or three years we have noticed 

 it quite frequently eating out the inside of both the leaf and 

 flower buds of our apple trees, and sometimes attacking the 

 buds of the young grafts, causing them to fail, which is a 

 serious damage. These insects appear in the early summer 

 and deposit their eggs on the apple leaves, upon which the larvae feed as soon 

 as hatched. These are about half grown when winter sets in, and hibernate in 

 that stage, so that they are ready in early spring to feed upon the young buds. 

 The easiest way of destroying these caterpillars is by spraying with Paris green 

 water in the proportion of one pound to two hundred gallons of water. This 

 application will also destroy the young tent caterpillars, or any other leaf-eating 

 insects which may be hatched out at this season. 



In the vegetable garden, there are two very destructive insect enemies, con- 

 cerning which we have frequent inquiries, viz., Cabbage Worm and Squash 

 Bug. The habits of each are too familiar to need any description. 



The cabbage worm comes from the eggs of the White Rape Butterfly, and 

 these butterflies appear in two stages, the first in July and the second in August. 

 Pyrethrum powder in a liquid form, as described above, is the safest and best 

 application to use, but it must be applied with great force so that the liquid will 

 reach every part affected. Some writers recommend the use of Paris green 

 water upon cabbages at an early date of growth. This no doubt would be quite 

 effective in destroying the cabbage worm, but we should also fear for the life of 

 human consumer. 



