230 EXPERIMENTAL FARMS 



4-5 EDWARD VII., A. 1905 



but each leaflet bore from six to ten aphides. They were scattered promiscuously over 

 the plant, not clustered in any way. I sprayed my celery three times at intervals of 

 a few days with the carbolic wash mentioned on page 182 of your 1903 report, with 

 the result that the insects disappeared entirely each time for a day or two, then re- 

 appeared, but in diminished numbers. Close observation to-day shows me that these 

 plant-lice are on the celery bed, on the soil and plants of an adjacent salsify bed, one 

 foot away, as well as a few vipon beds of carrots ; and they appear to be feeding on both 

 of these latter plants. I cannot see that they have injured my celery very much, 

 whatever they might have done, had they been left unchecked; still, they undoubtedly 

 are feeding upon it, and perhaps the injury does not show, because the ground is very 

 rich and the plants are well cared for. No. 2, however, whenever present, distorts the 

 leaves, and, if present in larger numbers, would, I think, be very injurious.' 



' July 10. — Aphides from Salsify : These are increasing very fast, and my plants 

 are getting overrun, but you will notice that some of them are parasitized, having 

 died and turned white. They are bound down to the leaf with a webby material which 

 covers a small grub.' 



' July 14. — Whitish fragments of dead aphides lying in abundance upon my car- 

 rot leaves and upon the ground beneath called my attention to them, and I found the 

 new leaves had their petioles swarming with plant-lice. Although very plentiful, they 

 do not yet seem to have done much harm. I find a few species of lady-bird beetles 

 and some other predaceous parasites, of which I send you specimens. I have been 

 more anxious for you to see these insects, because on looking over your reports I find 

 no reference to either a potato or a carrot aphis.' 



' July 15. — I find to-day that my parsnips are also infested by aphis. Please notice 

 if these are not the same species as those on carrot; and those on potato look ver;^ 

 much to me like those I sent you some time ago, which were found on salsify.' 



' July 16. — The dark hopping aphis on celery has disappeared ; but I send you more 

 of the green ones from the underside of the leaves, with as many winged specimens 

 as I can find. They have not been very plentiful on the celery, but seem to me very 

 much like those from the carrots and parsnips. I find lady-bird larvss very plentiful 

 on my carrots to-day, and they are clearing off the aphides nicely. I have been much 

 interested in watching these pests, and shall be obliged if you can send me the names 

 of them : two from celery, one from parsnips, one from carrots, salsify, cabbage and 

 potatoes.' — C. A. Hamilton. 



' Autigonish, N.S., Sept. 7. — My celery has been infested by a green bug. I 

 inclose specimens and should like to know what it is and how to get rid of it.' — F. H. 

 Beals. 



As stated above, there is still some doubt as to the exact identity of the species 

 found on celery, carrots and parsnips. I shall, therefore, be glad to get specimens for 

 further study. 



The Red Turxip Beetle (Entomoscelis adonidis, Fab.). — In travelling through 

 Manitoba and the North-west Territories in July last, I saw very few specimens of 

 this beetle, which is sometimes a rather serious pest of cruciferous crops in the West; 

 but some inquiries have been sent in as to its nature and habits. 



' Edmonton, August 21. — Some gardens here are infested with a beetle somewhat 

 like a lady-bird but bigger, which is bright red with black bars down its back and a 

 spot on the collar, about three-eighths of an inch long by a quarter of an inch wide. 

 This is doing some harm to radishes and turnips. In addition to this, some of the 

 white turnips are terribly diseased this year.' — C. H. Stuart- Wade. 



The same insect was written about from St. Lazare, Man., by Mr. Louis Worms, 

 who says that the insect had appeared in his district, and had been the cause of a good 

 deal of discussion among farmers as to whether or not it was the Colorado Potato 

 Beetle. He speaks of the leaves of turnips being entirely eaten or cut up into rags, and 

 also that a large number of the turnips had rotted. 



