198 EXPERIMENTAL FARMS. 



Maple (Acer dasycarpum), when the seeds only were attacked and hollowed out ; and 

 on the pear, where the caterpillars not only destroyed the leaves, but were particularly in- 

 jurious to the young fruit, eating large cavities into the forming pears, in the same way 

 as Professor Gillette describes the attack of the allied Cacozcia argyrospila, "Walker, on 

 apples. (Bui. 19, Colorado State Agricultural College, 1892.) Mr. J.S. Freeman, of Free- 

 man, Ont., in sending the specimens writes : — "June 13. The inclosed worms are eating 

 the pears they are sent with. I believe they have destroyed ^ of my Bartletts by 

 eating the skin off and holes into them." Mr. C. P. Morgan, Truro, JS". S., complained 

 of them attacking his gooseberry and currant bushes, and also notes them as injuring 

 plum and app'e trees. Spraying with Paris green is an effective remedy. 



The Pear Slug (Eriocampa cerasi, Peck, 

 Fig. 8.) has been the cause of much injury to 

 pear, plum and cherry trees. Mr. G. W. 

 Henry, the well known nurseryman, of Hatzic, 

 B. C, writes : — " Pear and cherry trees suffer- 

 ed badly from slugs last season ; I sprayed 

 with Paris green, which killed the slugs, but 

 Fig. 8. -The Pear Slug. also injured many of my young trees badly, 



though T used at the rate of 300 gallons of 

 water to 1 pound of Paris green. Fruit-growers are now recognizing the danger of 

 neglecting insects, and I believe in future a more thorough system will be adopted for 

 their destruction." In using Paris green for spraying, an equal quantity of fresh lime 

 should always be added, particularly upon plums and peaches. 



The following interesting letter refers also to the same insect : — " Burlington, Ont. 

 — My pear orchard consists of about 1,300 trees, more than half of which are Bartletts. 

 These suffered particularly last season from a dark-coloured slug which ate the substance 

 of the leaf, leaving only the skeleton. The work was done very quickly. After an 

 absence of a few days from the orchard, I found this one variety brown from end to end 

 of the row, Clapp's Favourite, Boussock and Anjou, alongside and mixed with them, 

 being comparatively uninjured. I have 500 dwarf Duchess pears. These were injured 

 next in extent to the Bartletts." — W. F. W. Fisher. 



The pear slug is not a difficult insect to control. Spraying with a weak solution 

 of Paris green or dusting with freshly slaked lime or Paris green diluted with 50 times 

 its weight of some dry powder, are always effective. 



The Gray Peach Weevil (Anametis grisea, Horn,) has been again reported this year 

 as a troublesome peach pest. I referred to it in my last report as having injured apple 

 trees in the orchard of Major R. F. Rogers at Grafton, Ont. This year, I am glad to 

 learn that it has given no trouble in that orchard. It has appeared at Queenston, Ont., 

 in the orchard of Mr. C. E. Fisher, but has done very little damage. The following 

 record, however, which was brought to my notice by Mr. L. Woolverton, is of a more 

 serious nature : 



"Fenwick, Ont., April 25. — I write to you in the hope that you may be able to 

 suggest a remedy for this beetle, which has proved very destructive to my young peach 

 trees. Last year we tried picking the insects, but notwithstanding our efforts, they 

 killed many of my trees, and are beginning this year again. The trees are just from 

 the nursery, so there is almost nothing to spray. The beetles eat the young bud as 

 soon as it appears, till they finally kill the tree. They seem to prefer the peach but 

 also attack the pear and plum. " 



"May 21. — I send you some of the beetles you ask for. It has not been very 

 suitable weather for finding them, as they come out best on warm sunny days. They 

 are not as troublesome in my orchard this year as last, but seem to have gone to other 

 orchards. Last year, they killed 130 young peach trees for me, and ate out four rows 

 of strawberries extending across a six-acre field. They only attack the very first leaf 

 buds and the bark of the young trees when first set out, or when a young tree is budded 

 and cut off near the ground ; then by eating the bud they destroy the tree. In many 

 of their habits they resemble the potato beetle, such as dropping to the ground and 



